66,789 results match your criteria Biological Agriculture & Horticulture[Journal]


Four new guaiane sesquiterpenoids from agarwood of Aquilaria filaria.

Fitoterapia 2019 Apr 14. Epub 2019 Apr 14.

Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China. Electronic address:

Six 8,12-epoxyguaiane sesquiterpenes (1-6), together with two known 2-(2-phenylethyl)chromone derivatives (7-8) were isolated from agarwood originating from Aquilaria filaria. Their structures were established by spectroscopic methods including IR, HRESIMS, 1D, and 2D NMR, and comparison with the published data. The absolute configuration of compound 1 was unambiguously determined by quantum chemical calculation of the electronic circular dichroism (ECD) spectrum. Read More

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http://dx.doi.org/10.1016/j.fitote.2019.04.007DOI Listing

Grifola frondosa polysaccharides ameliorate lipid metabolic disorders and gut microbiota dysbiosis in high-fat diet fed rats.

Food Funct 2019 Apr 17. Epub 2019 Apr 17.

Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian 350108, China. and National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China and College of Light Industry and Food Science, Zhongkai University of Agricultural Engineering, Guangzhou 510225, China and Department of Flavor Chemistry, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart 70599, Germany and College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.

The purpose of this study was to assess the potential effects of polysaccharides from edible mushroom Grifola frondosa (GFP) on lipid metabolic disorders and gut microbiota dysbiosis, and elucidate their possible regulatory mechanisms on lipid and cholesterol metabolism in high-fat diet (HFD)-exacerbated hyperlipidemic and hypercholesterolemic rats. Results showed that oral administration of GFP markedly alleviated dyslipidaemia through decreasing the serum levels of total triglycerides, total cholesterol, and free fatty acids, and significantly suppressing hepatic lipid accumulation and steatosis. Besides, the excretion of fecal bile acids was also promoted by oral administration of GFP. Read More

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http://dx.doi.org/10.1039/c9fo00075eDOI Listing

A rapidly self-assembling soft-brush DNA hydrogel based on RCA products.

Chem Commun (Camb) 2019 Apr 17. Epub 2019 Apr 17.

Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China. and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, P. R. China, Beijing, 100083, China.

A rapid self-assembly strategy was developed for fabricating a novel soft-brush DNA hydrogel in one minute by introducing a pair of L-type probes into the RCA products. The L-type probes with universality achieved a controllable size and morphology of the DNA hydrogel, providing deeper insight into variability and probability in functional biomaterials. Read More

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http://xlink.rsc.org/?DOI=C9CC01022J
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http://dx.doi.org/10.1039/c9cc01022jDOI Listing
April 2019
1 Read

Visible-light-mediated guest trapping in a photosensitizing porous coordination network: metal-free C-C bond-forming modification of metal-organic frameworks for aqueous-phase herbicide adsorption.

Chem Commun (Camb) 2019 Apr 17. Epub 2019 Apr 17.

Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, P. R. China.

A series of furan/thiophene-derived Cr-MIL-101s were obtained via visible-light-mediated C-C bond-forming catalysis within photosensitizing porous materials. The guest trapping process was achieved under very mild and metal-free conditions, affording newly functionalized MOFs with more π-π stacking, hydrogen bonding properties and excellent adsorption capacity in removing herbicides from aquatic environments. Read More

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http://dx.doi.org/10.1039/c9cc01371gDOI Listing

[Responses of soil microbial biomass C and P to different long-term fertilization treatments in the yellow paddy soil].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1327-1334

Scientific Observing and Experimental Station of Arable Land Conservation and Agriculture Environment Guizhou, Ministry of Agriculture and Rural Affairs, Guiyang 550006, China.

To explore the rational fertilization mode to improve the availability of soil phosphorus (P), we analyzed the changes and coupling characteristics of soil carbon (C) and P, microbial biomass C (MBC) and P (MBP) under different fertilization modes with a successive 22-year field experiment in yellow paddy soil. The experiment had 10 treatments, including no fertilization (CK), single application of nitrogen (N), combination of phosphorus and potassium (PK), combination of nitrogen and potassium (NK), combination of nitrogen and phosphorus (NP), combination of nitrogen, phosphorus and potassium (NPK), single application of organic fertilizer (M), and three organic-inorganic fertilizer combinations (1/4M+3/4NP, 0.5MNP, MNPK). Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.020DOI Listing

[Correlation between nitrogen fruiting efficiency and nitrogen utilization and remobilization in winter wheat at different sowing dates].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1151-1160

State Key Laboratory of Crop Biology/Key Laboratory of Crop Ecophysiology and Farming System, Ministry of Agriculture/College of Agronomy, Shandong Agricultural University, Tai'an 271018, Shandong, China.

To understand the correlation between nitrogen fruiting efficiency and nitrogen utilization and remobilization in winter wheat, the differences and mutual relationships of nitrogen fruiting efficiency, nitrogen utilization and remobilization of winter wheat at different sowing dates (S:24 September, S:1 October, S:8 October, S:15 October and S:22 October) were analyzed in two growing seasons from 2014 to 2016. The results showed that there was no significant difference in grain yield and grain number per unit area among different sowing dates. Delayed sowing date decreased nitrogen accumulation in both shoots and spikes, and then reduced nitrogen uptake efficiency and increased nitrogen utilization efficiency and nitrogen fruiting efficiency. Read More

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http://www.cnki.net/kcms/doi/10.13287/j.1001-9332.201904.005
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http://dx.doi.org/10.13287/j.1001-9332.201904.005DOI Listing
April 2019
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Genome-wide association analysis and gene set enrichment analysis with SNP data identify genes associated with 305-day milk yield in Holstein dairy cows.

Anim Genet 2019 Apr 17. Epub 2019 Apr 17.

Department of Animal Sciences, Center for Reproductive Biology, Washington State University, PO Box 646310, Pullman, WA, 99164-6310, USA.

Milk production traits, such as 305-day milk yield (305MY), have been under direct selection to improve production in dairy cows. Over the past 50 years, the average milk yield has nearly doubled, and over 56% of the increase is attributable to genetic improvement. As such, additional improvements in milk yield are still possible as new loci are identified. Read More

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http://dx.doi.org/10.1111/age.12792DOI Listing

CmMYB#7, an R3 MYB transcription factor, acts as a negative regulator of anthocyanin biosynthesis in chrysanthemum.

J Exp Bot 2019 Apr 17. Epub 2019 Apr 17.

College of Agriculture & Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou, PR China.

'Jimba', a well-known white flowered chrysanthemum cultivar, occasionally and spontaneously produces red colored petals under natural cultivation, but there is little information about the molecular regulatory mechanism underlying this process. We analysed the expression patterns of 91 MYB transcription factors in 'Jimba' and 'Turning red Jimba' and identified an R3 MYB, CmMYB#7, whose expression was significantly decreased in 'Turning red Jimba' compared with 'Jimba', and confirmed it is a passive repressor of anthocyanin biosynthesis. CmMYB#7 competed with CmMYB6, which together with CmbHLH2 is an essential component of the anthocyanin activation complex, for interaction with CmbHLH2 through the bHLH binding site in the R3 MYB domain. Read More

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http://dx.doi.org/10.1093/jxb/erz121DOI Listing

Arginine within a specific motif near the N-terminal of FimY is critical for the maximal production of type 1 fimbriae in Salmonella enterica serovar Typhimurium.

Microbiologyopen 2019 Apr 16:e846. Epub 2019 Apr 16.

Department of Veterinary Medicine, School of Veterinary Medicine, College of Bioresources and Agriculture, National Taiwan University, Taipei, Taiwan.

An important Salmonella serovar for both human and animals Salmonella Typhimurium possesses 13 gene clusters that have the potential to produce fimbrial structure, among which the type 1 fimbriae with the binding specificity to mannose residue is the most commonly found type. Six structural genes and five regulatory genes comprise the fim gene cluster that is responsible for the production of type 1 fimbriae in S. Typhimurium. Read More

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http://dx.doi.org/10.1002/mbo3.846DOI Listing

Using Turmeric Oil as a Solvent Improves the Distribution of Sesamin-Sesamolin in the Serum and Brain of Mice.

Lipids 2019 Apr 17. Epub 2019 Apr 17.

Department of Applied Biological Chemistry, Faculty of Agriculture, Kindai University, 204-3327 Nakamachi, Nara City, Nara, 631-8505, Japan.

Accumulation of amyloid-β peptide is associated with Alzheimer's dementia. Previously, we reported that sesamin and sesamolin inhibited β-secretase activity in vitro, and each was transported to the serum and brain in mice after oral administration. However, the bioavailability of sesamin and sesamolin was poor in mice. Read More

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http://dx.doi.org/10.1002/lipd.12147DOI Listing

Doing 'business as usual' comes with a cost: evaluating energy cost of maintaining plant intracellular K homeostasis under saline conditions.

New Phytol 2019 Apr 16. Epub 2019 Apr 16.

Tasmanian Institute for Agriculture, University of Tasmania, Hobart, Tas, 7005, Australia.

Salinization of agricultural lands is a major threat to agriculture. Many different factors affect and determine plant salt tolerance. Nonetheless, there is a consensus on the relevance of maintaining an optimal cytosolic K /Na ratio for salinity tolerance in plants. Read More

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http://dx.doi.org/10.1111/nph.15852DOI Listing
April 2019
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Selenium enriched Coriolus versicolor mushroom biomass: potential novel food supplement with improved selenium bioavailability.

J Sci Food Agric 2019 Apr 16. Epub 2019 Apr 16.

University of Belgrade, Faculty of Agriculture, Department of Food and Industrial Microbiology, Belgrade, Serbia.

Background: The ability of Coriolus versicolor medicinal mushroom to accumulate and transform selenium from selenourea and sodium selenite into an organic form L-selenomethionine during growth in liquid medium is examined in this paper. Additionally, the impact of supplementation on biological activity of the selenated mushroom methanol extracts, as well as their chemical composition is studied.

Results: Selenium accumulation was more efficient with sodium selenite application, but biomass yield was significantly lower (1. Read More

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http://dx.doi.org/10.1002/jsfa.9756DOI Listing

The stoichiometric legacy of fire regime regulates the roles of micro-organisms and invertebrates in decomposition.

Ecology 2019 Apr 16:e02732. Epub 2019 Apr 16.

Griffith School of Environment and Science and the Australian Rivers Institute, Griffith University, Nathan, QLD, Australia.

Decadal-scale increases in fire frequency have the potential to deplete ecosystems of essential nutrients and consequently impede nutrient-limited biological processes via stoichiometric imbalance. Decomposition, a fundamental ecosystem function and strong driver of future fire occurrence, is highly sensitive to nutrient availability and is, therefore, particularly important in this context. Here we show that forty years of quadrennial (4yB) and biennial (2yB) prescribed burning result in severely P- and N-depleted litter stoichiometry, respectively, relative to fire exclusion. Read More

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http://dx.doi.org/10.1002/ecy.2732DOI Listing

Streptomyces corynorhini sp. nov., isolated from Townsend's big-eared bats (Corynorhinus townsendii).

Antonie Van Leeuwenhoek 2019 Apr 16. Epub 2019 Apr 16.

Department of Biological Sciences, Western Illinois University, Macomb, IL, 61455, USA.

Four bacterial strains, with the capability of inhibiting Pseudogymnoascus destructans, the causative agent of white-nose syndrome, were isolated from male Townsend's big-eared bats (Corynorhinus townsendii, Family: Vespertilionidae) in New Mexico. Isolates AC161, AC162, AC208, and AC230 were characterised as a novel clade using morphological, phenotypic and phylogenetic analysis. A draft genome of the type strain was completed to determine its taxonomy and secondary metabolite biosynthetic potential. Read More

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http://dx.doi.org/10.1007/s10482-019-01261-zDOI Listing

Spatio-temporal localization of LlBOP following early events of floral abscission in yellow lupine.

Protoplasma 2019 Apr 16. Epub 2019 Apr 16.

Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, 1 Profesor Albareda Street, 18008, Granada, Spain.

The phenomenon of excessive flower abscission in yellow lupine is a process of substantial interest to the agricultural industries, because it substantially affects the yield. The aim of this work was to provide an analysis of the changes taking place precisely in the abscission zone (AZ) during early stages of flower separation. We put particular emphasis on mRNA accumulation of BOP (BLADE ON PETIOLE) gene encoding a transcriptional factor so far considered to be essential for AZ formation. Read More

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http://dx.doi.org/10.1007/s00709-019-01365-3DOI Listing

ChIP-cloning analysis uncovers centromere-specific retrotransposons in Brassica nigra and reveals their rapid diversification in Brassica allotetraploids.

Chromosoma 2019 Apr 16. Epub 2019 Apr 16.

National Maize Improvement Center of China, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.

Centromeres are indispensable functional units of chromosomes. The evolutionary mechanisms underlying the rapid evolution of centromeric repeats, especially those following polyploidy, remain unknown. In this study, we isolated centromeric sequences of Brassica nigra, a model diploid progenitor (B genome) of the allopolyploid species B. Read More

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http://dx.doi.org/10.1007/s00412-019-00701-zDOI Listing

Biomimetic hydroxyapatite nanocrystals are an active carrier for bacteriophages.

Int J Nanomedicine 2019 28;14:2219-2232. Epub 2019 Mar 28.

Department of Agriculture, University of Naples "Federico II", Portici, Naples, Italy,

Purpose: The use of bacteriophages represents a valid alternative to conventional antimicrobial treatments, overcoming the widespread bacterial antibiotic resistance phenomenon. In this work, we evaluated whether biomimetic hydroxyapatite (HA) nanocrystals are able to enhance some properties of bacteriophages. The final goal of this study was to demonstrate that biomimetic HA nanocrystals can be used for bacteriophage delivery in the context of bacterial infections, and contribute - at the same time - to enhance some of the biological properties of the same bacteriophages such as stability, preservation, antimicrobial activity, and so on. Read More

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http://dx.doi.org/10.2147/IJN.S190188DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6445186PMC

Genome-Wide Identification of Long Non-coding RNAs Responsive to Infection in Grapevine.

Evol Bioinform Online 2019 4;15:1176934319841362. Epub 2019 Apr 4.

Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China.

Long non-coding RNAs (lncRNAs) refer to a class of RNA molecules that are longer than 200 nucleotides and do not encode proteins. Numerous lncRNAs have recently emerged as important regulators of many biological processes in animals and plants, including responses to environmental stress and pathogens. dieback is one of the more severe grapevine trunk diseases worldwide. Read More

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http://dx.doi.org/10.1177/1176934319841362DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449811PMC
April 2019
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Transcriptomic analysis reveals differences in the regulation of amino acid metabolism in asexual and sexual planarians.

Sci Rep 2019 Apr 16;9(1):6132. Epub 2019 Apr 16.

Department of Biology, Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori, 036-8561, Japan.

Many flatworms can alternate between asexual and sexual reproduction. This is a powerful reproductive strategy enabling them to benefit from the features of the two reproductive modes, namely, rapid multiplication and genetic shuffling. The two reproductive modes are enabled by the presence of pluripotent adult stem cells (neoblasts), by generating any type of tissue in the asexual mode, and producing and maintaining germ cells in the sexual mode. Read More

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http://dx.doi.org/10.1038/s41598-019-42025-zDOI Listing

Biosynthesis of DHGA and its roles in Arabidopsis seedling establishment.

Nat Commun 2019 Apr 16;10(1):1768. Epub 2019 Apr 16.

Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, 475004, Kaifeng, China.

Seed germination and photoautotrophic establishment are controlled by the antagonistic activity of the phytohormones gibberellins (GAs) and abscisic acid (ABA). Here we show that Arabidopsis thaliana GAS2 (Gain of Function in ABA-modulated Seed Germination 2), a protein belonging to the Fe-dependent 2-oxoglutarate dioxygenase superfamily, catalyzes the stereospecific hydration of GA to produce GA 16, 17-dihydro-16α-ol (DHGA). We show that DHGA, a C-GA has an atypical structure compared to known active GAs but can bind to the GA receptor (GID1c). Read More

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http://dx.doi.org/10.1038/s41467-019-09467-5DOI Listing

Structural variants in 3000 rice genomes.

Genome Res 2019 Apr 16. Epub 2019 Apr 16.

International Rice Research Institute, Laguna 4031, Philippines.

Investigation of large structural variants (SVs) is a challenging yet important task in understanding trait differences in highly repetitive genomes. Combining different bioinformatic approaches for SV detection, we analyzed whole-genome sequencing data from 3000 rice genomes and identified 63 million individual SV calls that grouped into 1.5 million allelic variants. Read More

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http://dx.doi.org/10.1101/gr.241240.118DOI Listing

Haemolymph removal by Varroa mite destabilizes the dynamical interaction between immune effectors and virus in bees, as predicted by Volterra's model.

Proc Biol Sci 2019 Apr;286(1901):20190331

1 Dipartimento di Scienze AgroAlimentari, Ambientali e Animali, Università degli Studi di Udine , Udine , Italy.

The association between the deformed wing virus and the parasitic mite Varroa destructor has been identified as a major cause of worldwide honeybee colony losses. The mite acts as a vector of the viral pathogen and can trigger its replication in infected bees. However, the mechanistic details underlying this tripartite interaction are still poorly defined, and, particularly, the causes of viral proliferation in mite-infested bees. Read More

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http://dx.doi.org/10.1098/rspb.2019.0331DOI Listing

Chlorfenapyr Residue in Sweet Persimmon from Farm to Table.

J Food Prot 2019 Apr 15:810-814. Epub 2019 Apr 15.

1 Division of Applied Life Science (BK21 Plus), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea.

The use of the pesticide chlorfenapyr has been increasing over time, with a consequent wider application to crops. However, there is limited information available on the amount and safety of the residues it leaves on crops. The amount of chlorfenapyr residues in sweet persimmon ( L. Read More

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http://dx.doi.org/10.4315/0362-028X.JFP-18-503DOI Listing

Human rhinovirus spatial-temporal epidemiology in rural coastal Kenya, 2015-2016, observed through outpatient surveillance.

Wellcome Open Res 2018 27;3:128. Epub 2019 Mar 27.

Epidemiology and Demography Department, KEMRI-Wellcome Trust Research Programme, Kilifi, +254, Kenya.

Human rhinovirus (HRV) is the predominant cause of upper respiratory tract infections, resulting in a significant public health burden. The virus circulates as many different types (168), each generating strong homologous, but weak heterotypic, immunity. The influence of these features on transmission patterns of HRV in the community is understudied. Read More

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http://dx.doi.org/10.12688/wellcomeopenres.14836.2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6234744.2PMC
March 2019
3 Reads

Effects of fly ash application on plant biomass and element accumulations: a meta-analysis.

Environ Pollut 2019 Apr 6;250:137-142. Epub 2019 Apr 6.

Department of Biological Sciences, Tennessee State University, Nashville, TN, USA. Electronic address:

Fly ash generated from coal-fired power plants is a source of potential pollutants, but can be used as a soil ameliorant to increase plant biomass and yield in agriculture. However, the effects of fly ash soil application on plant biomass and the accumulation of both nutrient and toxic elements in plants remain unclear. Based on 85 articles, we conducted a comprehensive meta-analysis to evaluate changes in plant biomass and concentrations of 21 elements in plants in response to fly ash application. Read More

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http://dx.doi.org/10.1016/j.envpol.2019.04.013DOI Listing
April 2019
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Sequential treatment of paper and pulp industrial wastewater: Prediction of water quality parameters by Mamdani Fuzzy Logic model and phytotoxicity assessment.

Chemosphere 2019 Apr 5;227:256-268. Epub 2019 Apr 5.

Department of Earth Sciences, Faculty of Natural Sciences, University of Tabriz, 29 Bahman Boulevard, Tabriz, East Azerbaijan, Iran.

Recycling of industrial wastewater meeting quality standards for agricultural and industrial demands is a viable option. In this study, paper and pulp industrial wastewater were treated with three biological treatments viz. aerobic, anaerobic and sequential (i. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00456535193066
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http://dx.doi.org/10.1016/j.chemosphere.2019.04.022DOI Listing
April 2019
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N-linked glycosylation sites in G protein of infectious hematopoietic necrosis virus (IHNV) affect its virulence and immunogenicity in rainbow trout.

Fish Shellfish Immunol 2019 Apr 13. Epub 2019 Apr 13.

Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, PR China; Northeastern Science Inspection Station, China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Harbin, PR China. Electronic address:

Infectious hematopoietic necrosis virus (IHNV) causes infectious hematopoietic necrosis in salmonid fish, resulting in substantial economic losses to the aquaculture industry worldwide. The G protein, which harbors the major antigenic determinants of IHNV, is an envelope glycoprotein that plays an important role in both pathogenicity and immunogenicity of IHNV. Previous studies have demonstrated that changes to viral glycosylation sites may affect replication and immunogenicity, but little is known about the specific contributions of G protein glycosylation to IHNV replication and pathogenicity. Read More

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http://dx.doi.org/10.1016/j.fsi.2019.04.038DOI Listing

Chromatin dynamics underlying the precise regeneration of a vertebrate limb-epigenetic regulation and cellular memory.

Semin Cell Dev Biol 2019 Apr 13. Epub 2019 Apr 13.

Department of Biochemistry and Molecular Biology, Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki 036-8561, Japan. Electronic address:

Wound healing, tissue regeneration, and organ regrowth are all regeneration phenomena observed in vertebrates after an injury. However, the ability to regenerate differs greatly among species. Mammals can undergo wound healing and tissue regeneration, but cannot regenerate an organ; for example, they cannot regrow an amputated limb. Read More

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http://dx.doi.org/10.1016/j.semcdb.2019.04.006DOI Listing
April 2019
4 Reads

Preparation of chitosan-Cu/NH physical hydrogel and its properties.

Int J Biol Macromol 2019 Apr 13. Epub 2019 Apr 13.

School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China.

Chitosan (CTS) physical hydrogels crosslinked under gaseous ammonia atmospheres have attracted considerable attentions for their abilities to maximize the biological activities of CTS while maintaining their biocompatibility. However, poor mechanical properties significantly limit their application. The CTS-metal ion complexing hydrogels showed better mechanical properties. Read More

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http://dx.doi.org/10.1016/j.ijbiomac.2019.03.011DOI Listing
April 2019
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Effect of long-term organic and mineral fertilization strategies on rhizosphere microbiota assemblage and performance of lettuce.

Environ Microbiol 2019 Apr 16. Epub 2019 Apr 16.

Leibniz Institute of Vegetable and Ornamental Crops (IGZ), Plant-Microbe Systems, Großbeeren, Germany.

Long-term agricultural fertilization strategies gradually change soil properties including the associated microbial communities. Cultivated crops recruit beneficial microbes from the surrounding soil environment via root exudates. In this study, we aimed to investigate the effects of long-term fertilization strategies across field sites on the rhizosphere prokaryotic (Bacteria and Archaea) community composition and plant performance. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/1462-2920.14
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http://dx.doi.org/10.1111/1462-2920.14631DOI Listing
April 2019
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Identification of nacre matrix protein genes hic14 and hic19 and their roles in crystal growth and pearl formation in the mussel Hyriopsis cumingii.

Biotechnol Appl Biochem 2019 Apr 16. Epub 2019 Apr 16.

Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai, 201306, China.

Biological mineralization is a highly programmed process in which inorganic minerals reassociate under the strict control of the extracellular matrix to form minerals with special functions and patterns. Shells are bio-minerals, and their synthesis is finely regulated by organic matrix including matrix proteins, polysaccharides, lipids, pigments, free amino acids and small peptides. In this study, two matrix protein genes, hic14 and hic19, were isolated from the mantle of the mussel Hyriopsis cumingii. Read More

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http://dx.doi.org/10.1002/bab.1752DOI Listing

Development and application of a quantitative bioassay to evaluate maize silk resistance to corn earworm herbivory among progenies derived from Peruvian landrace Piura.

PLoS One 2019 16;14(4):e0215414. Epub 2019 Apr 16.

Corn Insects and Crop Genetics Research Unit, United States Department of Agriculture, Ames, Iowa, United States of America.

Corn earworm (CEW), Helicoverpa zea (Boddie), (Lepidoptera: Noctuidae), is a major insect pest of corn (Zea mays spp. mays L.). Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0215414PLOS

Ecology and epidemiology of rabies in humans, domestic animals and wildlife in Namibia, 2011-2017.

PLoS Negl Trop Dis 2019 Apr 16;13(4):e0007355. Epub 2019 Apr 16.

Directorate of Veterinary Services (DVS), Ministry of Agriculture Water and Forestry, Windhoek, Namibia.

Rabies is a fatal zoonotic disease that causes a heavy burden on societies. Namibia, a country in southern Africa, is aiming at controlling the disease in its main reservoir, the domestic dog. To facilitate the implementation comprehensive information on the ecology and epidemiology of the disease and surveillance is of utmost importance. Read More

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http://dx.doi.org/10.1371/journal.pntd.0007355DOI Listing

Distinct replication and gene expression strategies of the Rice Stripe virus in vector insects and host plants.

J Gen Virol 2019 Apr 16. Epub 2019 Apr 16.

1​State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.

Persistent propagative plant viruses are usually transmitted between a vector insect and a host plant. To adapt to the two different organisms, viruses may show distinct genomic replication or gene expression patterns. To verify this hypothesis, we applied an aboslute real-time quantitative PCR method to measure and compare the replication levels of four genomic RNA segments and the expression levels of seven genes of rice stripe virus (RSV) according to the infection time in the small brown planthopper and rice plant, respectively. Read More

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https://www.microbiologyresearch.org/content/journal/jgv/10.
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http://dx.doi.org/10.1099/jgv.0.001255DOI Listing
April 2019
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Spermine is a potent plant defense activator against gray mold disease on Solanum lycopersicum, Phaseolus vulgaris and Arabidopsis thaliana.

Phytopathology 2019 Apr 16. Epub 2019 Apr 16.

University of Guelph, 3653, Plant Agriculture , Bovey Bldg , 50 Stone Rd. E , Guelph, Ontario, Canada , N1G 2W1 ;

Polyamines (PAs) are ubiquitous aliphatic amines that play important roles in growth, development and environmental stress responses in plants. In this study, we report that exogenous application of spermine (Spm) is effective in the induction of resistance to gray mold disease, which is caused by the necrotrophic fungal pathogen Botrytis cinerea, on tomato (Solanum lycopersicum L.), bean (Phaseolus vulgaris L. Read More

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http://dx.doi.org/10.1094/PHYTO-12-18-0470-RDOI Listing

Rice acclimation to soil flooding: low concentrations of organic acids can trigger a barrier to radial oxygen loss in roots.

Plant Cell Environ 2019 Apr 15. Epub 2019 Apr 15.

UWA School of Agriculture and Environment, Faculty of Science, The University of Western Australia, Crawley, WA, 6009, Australia.

Waterlogged soils contain monocarboxylic acids produced by anaerobic microorganisms. These 'organic acids' can accumulate to phytotoxic levels and promote development of a barrier to radial O loss (ROL) in roots of some wetland species. Environmental cues triggering root ROL barrier induction, a feature which together with tissue gas-filled porosity facilitates internal aeration, are important to elucidate for knowledge of plant stress physiology. Read More

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http://dx.doi.org/10.1111/pce.13562DOI Listing

Toxicological effects of toxic metals (cadmium and mercury) on blood and the thyroid gland and pharmacological intervention by vitamin C in rabbits.

Environ Sci Pollut Res Int 2019 Apr 16. Epub 2019 Apr 16.

Department of Zoology, University of the Punjab, Lahore, Pakistan.

Cadmium and mercury are non-biodegradable toxic metals that may cause many detrimental effects to the thyroid gland and blood. Vitamin C has been found to be a significant chain-breaking antioxidant and enzyme co-factor against metal toxicity and thus make them less available for animals. The current study was performed to find the effect of individual metals (cadmium and mercury), their co-administration, and the ameliorative effects of vitamin C on some of the parameters that indicate oxidative stress and thyroid dysfunction. Read More

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http://dx.doi.org/10.1007/s11356-019-04886-9DOI Listing

Molecular Characterization and Expression Analysis of ftr01, ftr42, and ftr58 in Zebrafish (Danio rerio).

Virol Sin 2019 Apr 15. Epub 2019 Apr 15.

College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.

Tripartite motif (TRIM) proteins were shown to play an important role in innate antiviral immunity. FinTRIM (ftr) is a new subset of TRIM genes that do not possess obvious orthologs in higher vertebrates. However, little is known about its function. Read More

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http://dx.doi.org/10.1007/s12250-019-00112-5DOI Listing

A chimeric IDD4 repressor constitutively induces immunity in Arabidopsis via the modulation of salicylic- and jasmonic acid homeostasis.

Plant Cell Physiol 2019 Apr 15. Epub 2019 Apr 15.

Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.

INDETERMINATE DOMAIN (IDD)/BIRD proteins belong to a highly-conserved plant-specific group of transcription factors with dedicated functions in plant physiology and development. Here, we took advantage of the chimeric repressor gene-silencing technology (CRES-T, SRDX) to widen our view on the role of IDD4/IMPERIAL EAGLE and IDD family members in plant immunity. The hypomorphic idd4SRDX lines are compromised in growth and show a robust auto-immune phenotype. Read More

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https://academic.oup.com/pcp/advance-article/doi/10.1093/pcp
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http://dx.doi.org/10.1093/pcp/pcz057DOI Listing
April 2019
1 Read

Nutrient availability alters the correlation between spring leaf-out and autumn leaf senescence dates.

Tree Physiol 2019 Apr 15. Epub 2019 Apr 15.

Centre of Excellence Plants and Ecosystems, Department of Biology, University of Antwerp, Antwerp, Belgium.

Leaf senescence (LS) affects tree fitness, species distribution and ecosystem structure and functioning. The drivers of LS and the processes underlying it have been studied, but the studies have mainly focused on environmental cues and have mainly been based on statistical analyses using in situ data sets. Experimental investigation and field verification of the processes and drivers are thus urgently needed. Read More

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http://dx.doi.org/10.1093/treephys/tpz041DOI Listing

Enrichment of phosphatidylinositol 4,5-bisphosphate in the extra-invasive hyphal membrane promotes Colletotrichum infection of Arabidopsis thaliana.

Plant Cell Physiol 2019 Apr 15. Epub 2019 Apr 15.

Division of Cellular Dynamics, National Institute for Basic Biology, Nishigonaka 38, Myodaiji, Okazaki, Aichi, Japan.

Pathogenic fungi from the genus Colletotrichum form invasive hyphae; the hyphae are surrounded by an extra-invasive hyphal membrane (EIHM), which is continuous with the plant plasma membrane. Although the EIHM plays a crucial role as the interface between plant and fungal cells, its precise function during Colletotrichum infection remains elusive. Here we show that enrichment of phosphoinositides (PIs) has a crucial role in Colletotrichum infection. Read More

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http://dx.doi.org/10.1093/pcp/pcz058DOI Listing

Construction and Activity Analyses of Single Functional Mouse Peroxiredoxin 6 (Prdx6).

J Vet Res 2019 Mar 22;63(1):99-105. Epub 2019 Mar 22.

Key Laboratory of Zoonosis Research, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Xi An Da Lu 5333, Changchun 130062, China.

Introduction: Peroxiredoxin 6 (Prdx6) is a bifunctional protein with glutathione peroxidase activity and phospholipase A2 activity. Previous studies have shown a significant positive correlation between the intracellular survival ability of and Prdx6. Here, the Prdx6 enzyme with a single activity was constructed to facilitate study of the relationship between the single function of Prdx6 and infection. Read More

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https://content.sciendo.com/view/journals/jvetres/63/1/artic
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http://dx.doi.org/10.2478/jvetres-2019-0004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458554PMC
March 2019
1 Read

Shifts in dominant tree mycorrhizal associations in response to anthropogenic impacts.

Sci Adv 2019 Apr 10;5(4):eaav6358. Epub 2019 Apr 10.

Department of Biology, Indiana University, Bloomington, IN 47405, USA.

Plant-fungal symbioses play critical roles in vegetation dynamics and nutrient cycling, modulating the impacts of global changes on ecosystem functioning. Here, we used forest inventory data consisting of more than 3 million trees to develop a spatially resolved "mycorrhizal tree map" of the contiguous United States. We show that abundances of the two dominant mycorrhizal tree groups-arbuscular mycorrhizal (AM) and ectomycorrhizal trees-are associated primarily with climate. Read More

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http://dx.doi.org/10.1126/sciadv.aav6358DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6457943PMC

Evolution of buffering in a genetic circuit controlling plant stem cell proliferation.

Nat Genet 2019 Apr 15. Epub 2019 Apr 15.

Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA.

Precise control of plant stem cell proliferation is necessary for the continuous and reproducible development of plant organs. The peptide ligand CLAVATA3 (CLV3) and its receptor protein kinase CLAVATA1 (CLV1) maintain stem cell homeostasis within a deeply conserved negative feedback circuit. In Arabidopsis, CLV1 paralogs also contribute to homeostasis, by compensating for the loss of CLV1 through transcriptional upregulation. Read More

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http://www.nature.com/articles/s41588-019-0389-8
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http://dx.doi.org/10.1038/s41588-019-0389-8DOI Listing
April 2019
1 Read

Ancient genomes indicate population replacement in Early Neolithic Britain.

Nat Ecol Evol 2019 Apr 15. Epub 2019 Apr 15.

Department of Earth Sciences, Natural History Museum, London, UK.

The roles of migration, admixture and acculturation in the European transition to farming have been debated for over 100 years. Genome-wide ancient DNA studies indicate predominantly Aegean ancestry for continental Neolithic farmers, but also variable admixture with local Mesolithic hunter-gatherers. Neolithic cultures first appear in Britain circa 4000 BC, a millennium after they appeared in adjacent areas of continental Europe. Read More

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http://www.nature.com/articles/s41559-019-0871-9
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http://dx.doi.org/10.1038/s41559-019-0871-9DOI Listing
April 2019
4 Reads

Morphology and genome of a snailfish from the Mariana Trench provide insights into deep-sea adaptation.

Nat Ecol Evol 2019 Apr 15. Epub 2019 Apr 15.

Institute of Deep Sea Science and Engineering, Chinese Academy of Sciences, Sanya, China.

It is largely unknown how living organisms-especially vertebrates-survive and thrive in the coldness, darkness and high pressures of the hadal zone. Here, we describe the unique morphology and genome of Pseudoliparis swirei-a recently described snailfish species living below a depth of 6,000 m in the Mariana Trench. Unlike closely related shallow sea species, P. Read More

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http://dx.doi.org/10.1038/s41559-019-0864-8DOI Listing

Stage-specific transcriptome of Bursaphelenchus xylophilus reveals temporal regulation of effector genes and roles of the dauer-like stages in the lifecycle.

Sci Rep 2019 Apr 15;9(1):6080. Epub 2019 Apr 15.

Division of Parasitology, Faculty of Medicine, University of Miyazaki, Miyazaki, 889-1692, Japan.

The pine wood nematode Bursaphelenchus xylophilus is the causal agent of pine wilt disease, one of the most devastating forest diseases in East Asian and West European countries. The lifecycle of B. xylophilus includes four propagative larval stages and gonochoristic adults which are involved in the pathogenicity, and two stages of dispersal larvae involved in the spread of the disease. Read More

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http://dx.doi.org/10.1038/s41598-019-42570-7DOI Listing

The horse Y chromosome as an informative marker for tracing sire lines.

Sci Rep 2019 Apr 15;9(1):6095. Epub 2019 Apr 15.

Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria.

Analysis of the Y chromosome is the best-established way to reconstruct paternal family history in humans. Here, we applied fine-scaled Y-chromosomal haplotyping in horses with biallelic markers and demonstrate the potential of our approach to address the ancestry of sire lines. We de novo assembled a draft reference of the male-specific region of the Y chromosome from Illumina short reads and then screened 5. Read More

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http://dx.doi.org/10.1038/s41598-019-42640-wDOI Listing

High-resolution crystal structures of the glycoside hydrolase family 45 endoglucanase EG27II from the snail Ampullaria crossean.

Acta Crystallogr D Struct Biol 2019 Apr 4;75(Pt 4):426-436. Epub 2019 Apr 4.

Laboratory of Applied Structural Biology, Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan.

Although endogenous animal cellulases have great potential for industrial applications such as bioethanol production, few investigations have focused on these enzymes. In this study, the glycoside hydrolase family 45 (GH45) subfamily B endoglucanase EG27II from the snail Ampullaria crossean was expressed using a Pichia pastoris expression system and the crystal structure of the apo form was determined at 1.00 Å resolution; this is the highest resolution structure of an animal endoglucanase. Read More

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http://dx.doi.org/10.1107/S2059798319003000DOI Listing
April 2019
1 Read

Sexually dimorphic regulation of behavioral states by dopamine in .

J Neurosci 2019 Apr 15. Epub 2019 Apr 15.

Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, 153-8902, Japan.

Sex differences in behavior allow animals to effectively mate and reproduce. However, the mechanism by which biological sex regulates behavioral states, which underlie the regulation of sex-shared behaviors such as locomotion, is largely unknown. In this study, we studied sex differences in the behavioral states of and found that males spend less time in a low locomotor activity state than hermaphrodites and that dopamine generates this sex difference. Read More

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http://www.jneurosci.org/lookup/doi/10.1523/JNEUROSCI.2985-1
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http://dx.doi.org/10.1523/JNEUROSCI.2985-18.2019DOI Listing
April 2019
5 Reads