1,043,521 results match your criteria Plant Poisoning Glycosides - Coumarin


Cytotoxic Prenylated Xanthones from the Leaves of Garcinia bracteata.

Planta Med 2019 Jan 16. Epub 2019 Jan 16.

School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.

Six new prenylated xanthones (1: -6: ) and seventeen known xanthones were isolated from extracts of leaves. Their structures were determined by extensive NMR and MS spectroscopic data analysis. The inhibitory activities of the isolates were assayed on HeLa, A549, PC-3, HT-29, and WPMY-1 cell lines. Read More

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http://dx.doi.org/10.1055/a-0828-9831DOI Listing
January 2019
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Triterpenoids from Hibiscus sabdariffa L. with PPARδ/γ Dual Agonist Action: In Vivo, In Vitro and In Silico Studies.

Planta Med 2019 Jan 16. Epub 2019 Jan 16.

Laboratorio de Farmacología, Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Ciudad de México, México.

is a medicinal plant consumed as a diuretic and anti-obesity remedy. Several pharmacological studies have shown its beneficial effects in metabolism. Peroxisome proliferator-activated receptors and may play a role in the actions of These nuclear receptors regulate lipid and glucose metabolism and are therapeutic targets for type 2 diabetes. Read More

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http://dx.doi.org/10.1055/a-0824-1316DOI Listing
January 2019

Development of real-time RT-PCR assays for two viruses infecting pome fruit.

J Virol Methods 2019 Jan 13. Epub 2019 Jan 13.

Department of Plant Pathology, Washington State University, Prosser, WA, 99350, United States.

Apple stem grooving virus (ASGV) and Apple green crinkle-associated virus (AGCaV) negatively impact production, maintenance, and distribution of apples and other Malus species world-wide. Due to the increasing diversity of isolates found by high-throughput sequencing, we have developed real-time RT-qPCR assays for these two viruses. Primers and probes were designed against alignments of representative extant sequences from around the world, and reaction conditions optimized for sensitivity and specificity. Read More

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http://dx.doi.org/10.1016/j.jviromet.2018.12.008DOI Listing
January 2019

Tailoring Grain Boundary Chemistry of Polymeric Carbon Nitride for Enhanced Solar H2 Production and CO2 Reduction.

Angew Chem Int Ed Engl 2019 Jan 16. Epub 2019 Jan 16.

Max-Planck-Institut for Colloid and Interfaces, GERMANY.

Photocatalytic water splitting is a promising and clean way to mimic the plant photosynthesis in a sustainable manner. Improvements of the quantum efficiency and optical absorption in the relevant range are certainly the further steps to approach practicality. Here, we reported that these issues can be readily addressed when 5-aminotetrazole, a monomer with still higher nitrogen content, is used for the synthesis of carbon nitride. Read More

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http://dx.doi.org/10.1002/anie.201811938DOI Listing
January 2019

Diverse genotypes of the amphibian killing fungus produce distinct phenotypes through plastic responses to temperature.

J Evol Biol 2019 Jan 16. Epub 2019 Jan 16.

Department of Biology, University of Maryland, College Park, MD, USA.

Phenotypes are the target of selection and affect the ability of organisms to persist in variable environments. Phenotypes can be influenced directly by genes and/or by phenotypic plasticity. The amphibian-killing fungus Batrachochytrium dendrobatidis (Bd) has a global distribution, unusually broad host range, and high genetic diversity. Read More

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http://dx.doi.org/10.1111/jeb.13413DOI Listing
January 2019

Comparative analysis of genetically-modified crops: Part 1. Conditional difference testing with a given genetic background.

PLoS One 2019 16;14(1):e0210747. Epub 2019 Jan 16.

Global Regulatory Sciences, Monsanto Company, Chesterfield, Missouri, United States of America.

The European Food Safety Authority (EFSA) mandates two sets of statistical tests in the comparative assessment of a genetically-modified (GM) crop: difference testing to demonstrate whether the GM crop is different from its appropriate non-traited control; and equivalence testing to demonstrate whether it is equivalent to conventional references with an history-of-safe-use. The equivalence testing method prescribed by EFSA confounds the so-called GM trait effect with genotypic differences between the reference varieties and non-traited control. Critically, these genotypic differences, which we define as a 'control background effect', are the result of conventional plant breeding. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0210747PLOS
January 2019

Ion Torrent and lllumina, two complementary RNA-seq platforms for constructing the holm oak (Quercus ilex) transcriptome.

PLoS One 2019 16;14(1):e0210356. Epub 2019 Jan 16.

Agroforestry and Plant Biochemistry and Proteomics Research Group, Department of Biochemistry and Molecular Biology, University of Cordoba, Cordoba, Spain.

Transcriptome analysis is widely used in plant biology research to explore gene expression across a large variety of biological contexts such as those related to environmental stress and plant-pathogen interaction. Currently, next generation sequencing platforms are used to obtain a high amount of raw data to build the transcriptome of any plant. Here, we compare Illumina and Ion Torrent sequencing platforms for the construction and analysis of the holm oak (Quercus ilex) transcriptome. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0210356PLOS
January 2019

Marine mammals and sea turtles listed under the U.S. Endangered Species Act are recovering.

PLoS One 2019 16;14(1):e0210164. Epub 2019 Jan 16.

Center for Biological Diversity, Tucson, Arizona, United States of America.

The U.S. Endangered Species Act (ESA) is a powerful environmental law protecting imperiled plants and animals, and a growing number of marine species have been protected under this law as extinction risk in the oceans has increased. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0210164PLOS
January 2019

Urine effects on grass and legume nitrogen isotopic composition: Pronounced short-term dynamics of δ15N.

PLoS One 2019 16;14(1):e0210623. Epub 2019 Jan 16.

Department of Crop Sciences, Grassland Science, University of Goettingen, Goettingen, Germany.

Nitrogen stable isotope (15N) natural abundance is widely used to study nitrogen cycling. In grazed ecosystems, urine patches are hot-spots of nitrogen inputs, losses, and changes in δ15N. Understanding δ15N dynamics in urine-affected vegetation is therefore crucial for accurate inferences from 15N natural abundance in grasslands. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0210623PLOS
January 2019
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Intestinal bacteria modulate the foraging behavior of the oriental fruit fly Bactrocera dorsalis (Diptera: Tephritidae).

PLoS One 2019 16;14(1):e0210109. Epub 2019 Jan 16.

Department of Entomology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel.

The gut microbiome of insects directly or indirectly affects the metabolism, immune status, sensory perception and feeding behavior of its host. Here, we examine the hypothesis that in the oriental fruit fly (Bactrocera dorsalis, Diptera: Tephritidae), the presence or absence of gut symbionts affects foraging behavior and nutrient ingestion. We offered protein-starved flies, symbiotic or aposymbiotic, a choice between diets containing all amino acids or only the non-essential ones. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0210109PLOS
January 2019

Low CO2 induces urea cycle intermediate accumulation in Arabidopsis thaliana.

PLoS One 2019 16;14(1):e0210342. Epub 2019 Jan 16.

Institute of Botany, Leibniz University Hannover, Hannover, Germany.

The non-proteinogenic amino acid ornithine links several stress response pathways. From a previous study we know that ornithine accumulates in response to low CO2. To investigate ornithine accumulation in plants, we shifted plants to either low CO2 or low light. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0210342PLOS
January 2019

Genome-scale identification, classification, and tissue specific expression analysis of late embryogenesis abundant (LEA) genes under abiotic stress conditions in Sorghum bicolor L.

PLoS One 2019 16;14(1):e0209980. Epub 2019 Jan 16.

Department of Genetics, Osmania University, Hyderabad, India.

Late embryogenesis abundant (LEA) proteins, the space fillers or molecular shields, are the hydrophilic protective proteins which play an important role during plant development and abiotic stress. The systematic survey and characterization revealed a total of 68 LEA genes, belonging to 8 families in Sorghum bicolor. The LEA-2, a typical hydrophobic family is the most abundant family. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0209980PLOS
January 2019
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Rock climbing activity and physical habitat attributes impact avian community diversity in cliff environments.

PLoS One 2019 16;14(1):e0209557. Epub 2019 Jan 16.

City of Boulder Open Space and Mountain Parks, Boulder, CO, United States of America.

As the sport of outdoor rock climbing rapidly grows, there is increasing pressure to understand how it can affect communities of organisms in cliff habitats. To that end, we surveyed 32 cliff sites in Boulder, Colorado, USA, and assessed the relative roles of human recreation and natural habitat features as drivers of bird diversity and activity. We detected only native avian species during our observations. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0209557PLOS
January 2019

High-Load Soft Grippers Based on Bionic Winding Effect.

Soft Robot 2019 Jan 16. Epub 2019 Jan 16.

1 Parallel Robot and Mechatronic System Laboratory of Hebei Province, Yanshan University, Qinhuangdao, China.

The improvement of the load capacity of soft grippers has always been a challenge. To tackle this load capacity challenge, this work presents four novel types of high-load (HL) soft grippers that are bioinspired by bionic winding models. The winding models are found commonly in many animals and plants, where different winding patterns are used to grip different objects. Read More

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http://dx.doi.org/10.1089/soro.2018.0024DOI Listing
January 2019

Identification of a novel plant RNA virus species of the genus Amalgavirus in the family Amalgaviridae from chia (Salvia hispanica).

Genes Genomics 2019 Jan 16. Epub 2019 Jan 16.

Department of Life Science, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, South Korea.

Background: Chia (Salvia hispanica) is a flowering plant in the family Lamiaceae, which produces seeds that are a rich source of various nutritional compounds.

Objective: To identify a novel RNA virus potentially associated with chia.

Methods: Transcriptome data obtained from developing chia seeds were assembled into contigs. Read More

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http://dx.doi.org/10.1007/s13258-019-00782-1DOI Listing
January 2019

Transcriptome-wide effect of DE-ETIOLATED1 (DET1) suppression in embryogenic callus of Carica papaya.

J Plant Res 2019 Jan 16. Epub 2019 Jan 16.

Institute of Systems Biology, Universiti Kebangsaan Malaysia, UKM Bangi, 43600, Bangi, Selangor, Malaysia.

Papaya is one of the most nutritional fruits, rich in vitamins, carotenoids, flavonoids and other antioxidants. Previous studies showed phytonutrient improvement without affecting quality in tomato fruit and rapeseed through the suppression of DE-ETIOLATED-1 (DET1), a negative regulator in photomorphogenesis. This study is conducted to study the effects of DET1 gene suppression in papaya embryogenic callus. Read More

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http://dx.doi.org/10.1007/s10265-019-01086-xDOI Listing
January 2019

Production of a Recombinant Dermaseptin Peptide in Nicotiana tabacum Hairy Roots with Enhanced Antimicrobial Activity.

Mol Biotechnol 2019 Jan 16. Epub 2019 Jan 16.

Department of Agricultural Biotechnology, Faculty of Agricultural Sciences, University of Guilan, Rasht, 4199613776, Iran.

Expression of strong antimicrobial peptides in plants is of great interest to combat a wide range of plant pathogens. To bring the Dermaseptin B1 (DrsB1) peptide to the intimate contact of the plant pathogens cell wall surface, the DrsB1 encoding sequence was fused to the C-terminal part of the two copies of the chitin-binding domain (CBD) of the Avr4 effector protein and used for Agrobacterium rhizogenes-mediated transformation. The expression of the recombinant protein in the tobacco hairy roots (HRs) was confirmed by molecular analysis. Read More

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http://link.springer.com/10.1007/s12033-019-00153-x
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http://dx.doi.org/10.1007/s12033-019-00153-xDOI Listing
January 2019
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Genome-Wide Identification and Characterization of DIR Genes in Medicago truncatula.

Biochem Genet 2019 Jan 16. Epub 2019 Jan 16.

College of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China.

Dirigent proteins (DIRs) are critically involved in the formation of lignans, a diverse and widely distributed class of secondary plant metabolites exhibiting interesting pharmacological activities and implicated in natural plant defense. However, no detailed information is available about DIR gene family in Medicago truncatula. In this study, a total of 45 DIR genes were identified in M. Read More

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http://dx.doi.org/10.1007/s10528-019-09903-7DOI Listing
January 2019

Atmo-ecometabolomics: a novel atmospheric particle chemical characterization methodology for ecological research.

Environ Monit Assess 2019 Jan 16;191(2):78. Epub 2019 Jan 16.

Department of Earth System Science, University of California, Irvine, Irvine, CA, 92697, USA.

Aerosol particles play important roles in processes controlling the composition of the atmosphere and function of ecosystems. A better understanding of the composition of aerosol particles is beginning to be recognized as critical for ecological research to further comprehend the link between aerosols and ecosystems. While chemical characterization of aerosols has been practiced in the atmospheric science community, detailed methodology tailored to the needs of ecological research does not exist yet. Read More

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http://dx.doi.org/10.1007/s10661-019-7205-xDOI Listing
January 2019

Disturbance in biosynthesis of arachidonic acid impairs the sexual development of the onion blight pathogen Stemphylium eturmiunum.

Curr Genet 2019 Jan 16. Epub 2019 Jan 16.

Key Laboratory for Biology of Vegetable Diseases and Insect Pests of Shandong Province, Department of Plant Pathology, Shandong Agricultural University, Taian, 271018, Shandong, China.

The formation of sexual fruiting bodies for plant pathogenic fungi is a key strategy to propagate their progenies upon environmental stresses. Stemphylium eturmiunum is an opportunistic plant pathogen fungus causing blight in onion. This self-fertilizing filamentous ascomycete persists in the soil by forming pseudothecia, the sexual fruiting body which helps the fungus survive in harsh environments. Read More

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http://dx.doi.org/10.1007/s00294-019-00930-wDOI Listing
January 2019

FLOURY ENDOSPERM15 encodes a glyoxalase I involved in compound granule formation and starch synthesis in rice endosperm.

Plant Cell Rep 2019 Jan 16. Epub 2019 Jan 16.

State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China.

Key Message: FLO15encodes a plastidic glyoxalase I protein, OsGLYI7, which affects compound starch granule formation and starch synthesis in rice endosperm. Starch synthesis in rice (Oryza sativa) endosperm is a sophisticated process, and its underlying molecular machinery still remains to be elucidated. Here, we identified and characterized two allelic rice floury endosperm 15 (flo15) mutants, both with a white-core endosperm. Read More

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http://dx.doi.org/10.1007/s00299-019-02370-9DOI Listing
January 2019

Efficient and transgene-free gene targeting using Agrobacterium-mediated delivery of the CRISPR/Cas9 system in tomato.

Plant Cell Rep 2019 Jan 16. Epub 2019 Jan 16.

INRA PACA, UR 1052, GAFL Unit (Génétique et Amelioration des Fruits et Légumes), Avignon, France.

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http://dx.doi.org/10.1007/s00299-019-02373-6DOI Listing
January 2019

Brassinosteroid induces phosphorylation of the plasma membrane H+-ATPase during hypocotyl elongation in Arabidopsis thaliana.

Plant Cell Physiol 2019 Jan 15. Epub 2019 Jan 15.

Division of Biological Science, Graduate School of Science, Nagoya University, Chikusa, Nagoya, Japan.

Brassinosteroids (BRs) are steroid phytohormones that regulate plant growth and development, and promote cell elongation at least in part via the acid-growth process. BRs have been suggested to induce cell elongation by activating plasma membrane (PM) H+-ATPase. However, the mechanism by which BRs activate PM H+-ATPase has not been clarified. Read More

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http://dx.doi.org/10.1093/pcp/pcz005DOI Listing
January 2019

An Historical Review of Phenylacetic Acid.

Authors:
Sam D Cook

Plant Cell Physiol 2019 Jan 15. Epub 2019 Jan 15.

Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Fuchu, Japan.

Plant hormone biology is an ever-evolving field and as such, novel avenues of research must always be sought. Technological and theoretical advancement can also allow for previously dismissed research to yield equally interesting insights into processes now that they are better understood. The auxin PAA is an excellent example of this. Read More

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http://dx.doi.org/10.1093/pcp/pcz004DOI Listing
January 2019

A feedback loop between CaWRKY41 and H2O2 coordinates pepper's response to Ralstonia solanacearum and excess cadmium.

J Exp Bot 2019 Jan 14. Epub 2019 Jan 14.

Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization of the Ministry of Education, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China.

WRKY transcription factors have been implicated in both plant immunity and plant responses to cadmium (Cd); however, the mechanism underlying the crosstalk between these processes is unclear. Here, we characterized the roles of CaWRKY41, a groupⅢ WRKY TF, in immunity against the pathogenic bacterium Ralstonia solanacearum and Cd stress responses in pepper (Capsicum annuum). CaWRKY41 was transcriptionally upregulated in response to Cd exposure, R. Read More

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http://dx.doi.org/10.1093/jxb/erz006DOI Listing
January 2019

Effects of Cold Storage on Nondiapausing Eggs of the Western Corn Rootworm (Coleoptera: Chrysomelidae).

J Econ Entomol 2019 Jan 10. Epub 2019 Jan 10.

Plant Genetics Research Unit, USDA-Agricultural Research Service, Columbia, MO.

Western corn rootworm, Diabrotica virgifera virgifera LeConte, became much easier to research with the development of a nondiapausing rootworm strain. In the event that the eggs cannot be used immediately researchers have been known to delay egg hatch by storing the eggs at low temperatures. It is not well known how this technique could affect egg hatch or larval development, which could alter the results of an experiment. Read More

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http://dx.doi.org/10.1093/jee/toy405DOI Listing
January 2019

Roles of Cytosolic Glutamine Synthetases in Arabidopsis Development and Stress Responses.

Plant Cell Physiol 2019 Jan 15. Epub 2019 Jan 15.

Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK, S7N 5E2, Canada.

Glutamine (Gln) serves as a central role in nitrogen (N) and carbon (C) metabolism. It is synthesized during assimilation of ammonium by cytosolic and plastidial glutamine synthetases (GS; EC 6.1. Read More

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http://dx.doi.org/10.1093/pcp/pcy235DOI Listing
January 2019

Excess Pyrophosphate within Guard Cells Delays Stomatal Closure.

Plant Cell Physiol 2019 Jan 15. Epub 2019 Jan 15.

Department of Biology, Tokyo Gakugei University, Tokyo, Japan.

A variety of cellular metabolic reactions generate inorganic pyrophosphate (PPi) as an ATP hydrolysis byproduct. The vacuolar H+-translocating pyrophosphatase (H+-PPase) loss-of-function fugu5 mutant is susceptible to drought and displays pleotropic postgerminative growth defects due to excess PPi. It was recently reported that stomatal closure after ABA treatment is delayed in vhp1-1, a fugu5 allele. Read More

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http://dx.doi.org/10.1093/pcp/pcz002DOI Listing
January 2019

Identification of Phytocyanin Gene Family in Legume Plants and Their Involvement in Nodulation of Medicago truncatula.

Plant Cell Physiol 2019 Jan 15. Epub 2019 Jan 15.

State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest Agriculture and Forestry University, Yangling, China.

The establishment of symbiosis between legume and rhizobium results in the formation of nodule. Phytocyanins (PCs) are a class of plant specific blue copper proteins, playing critical roles in plant development including nodule formation. Although a few PC genes have been isolated from nodules, their functions are still unclear. Read More

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http://dx.doi.org/10.1093/pcp/pcz007DOI Listing
January 2019

Structural insights reveal the specific recognition of roX RNA by the dsRNA-binding domains of the RNA helicase MLE and its indispensable role in dosage compensation in Drosophila.

Nucleic Acids Res 2019 Jan 15. Epub 2019 Jan 15.

Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China.

In Drosophila, dosage compensation globally upregulates the expression of genes located on male single X-chromosome. Maleless (MLE) helicase plays an essential role to incorporate the roX lncRNA into the dosage compensation complex (MSL-DCC), and such function is essentially dependent on its dsRNA-binding domains (dsRBDs). Here, we report a 2. Read More

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http://dx.doi.org/10.1093/nar/gky1308DOI Listing
January 2019

The Cotton High-affinity K+ Transporter, GhHAK5a, is Essential for Shoot Regulation of K+ Uptake in Root under Potassium Deficiency.

Plant Cell Physiol 2019 Jan 14. Epub 2019 Jan 14.

State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China.

Potassium (K) deficiency is a key limiting factor in cotton (Gossypium hirsutum) production. By grafting two contrasting cotton cultivars, CCRI41 (more susceptible to K+ deficiency) and SCRC22 (more tolerant of K+ deficiency), we established that cotton shoot plays a vital role in the regulation of root K+ uptake. To identify the genetic basis of this finding, we performed RNA sequencing (RNA-seq) of roots of CCRI41 self-grafts (CCRI41/CCRI41, scion/rootstock) and SCRC22/CCRI41 reciprocal-grafts exposed to K+ deficiency. 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/pcz003DOI Listing
January 2019
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Evaluation of Emamectin Benzoate and Propiconazole for Management of a New Invasive Shot Hole Borer (Euwallacea nr. fornicatus, Coleoptera: Curculionidae) and Symbiotic Fungi in California Sycamores.

J Econ Entomol 2019 Jan 12. Epub 2019 Jan 12.

Department of Statistics, North Carolina State University, Raleigh.

The polyphagous shot hole borer (Euwallacea nr. fornicatus, Coleoptera: Curculionidae: Scolytinae), an exotic and invasive ambrosia beetle, was recently found attacking a number of tree species in Los Angeles, Orange, Riverside, and San Diego Counties in southern California. Their colonization and subsequent inoculation of a suite of symbiotic fungi that cause Fusarium Dieback, has resulted in extensive mortality of some tree species, including, California sycamore (Platanus racemose Nutt. Read More

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http://dx.doi.org/10.1093/jee/toy423DOI Listing
January 2019

Ethylene and Hydrogen Peroxide Regulate Formation of a Sterol-Enriched Domain Essential for Wall Labyrinth Assembly in Transfer Cells.

J Exp Bot 2019 Jan 14. Epub 2019 Jan 14.

School of Environmental and Life Sciences, University of Newcastle, Newcastle NSW, Australia.

Transfer cells (TCs) facilitate high rates of nutrient transport into, and within, the plant body. Their transport function is conferred by polarized wall ingrowth papillae, deposited upon a specialized uniform wall layer, that form a scaffold supporting an amplified area of plasma membrane enriched in nutrient transporters. We explored the question of whether lipid-enriched domains of the TC plasma membrane could serve as organizational platforms for proteins regulating the construction of the intricate TC wall labyrinth using developing Vicia faba cotyledons. Read More

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http://dx.doi.org/10.1093/jxb/erz003DOI Listing
January 2019

Two annexin genes ZmANN33 and ZmANN35 encode proteins that function in cell membrane recovery during the germination of maize (Zea mays. L) seeds.

J Exp Bot 2019 Jan 10. Epub 2019 Jan 10.

Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China.

Plasma membrane (PM) recovery from impaired dry state is essential for seed germination, but its underlying mechanism remains yet unclear. In this study, we found that ZmANN33 and ZmANN35, two annexin genes in maize, encode proteins that participate in PM recovery during seed germination. The expression of both genes was up-regulated during seed germination and strongly repressed by chilling (either 15ºC or 5ºC) as compared with the normal temperature (25ºC). Read More

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http://dx.doi.org/10.1093/jxb/ery452DOI Listing
January 2019

Developmental plasticity of Arabidopsis hypocotyl is dependent on exocyst complex function.

J Exp Bot 2019 Jan 14. Epub 2019 Jan 14.

Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Czech Republic.

The collet (root-hypocotyl junction) region is an important plant transition zone between soil and atmospheric environments. Despite its crucial importance for plant development, little is known about how this transition zone is specified. Here we document the involvement of the exocyst complex in this process. Read More

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http://dx.doi.org/10.1093/jxb/erz005DOI Listing
January 2019

Prey-Stage Preference and Comparing Reproductive Performance of Aphidoletes aphidimyza (Diptera: Ceccidomyiidae) Feeding on Aphis gossypii (Hemiptera: Aphididae) and Myzus persicae.

J Econ Entomol 2019 Jan 11. Epub 2019 Jan 11.

Agricultural Entomology Research Department, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Organization (AREEO), Tehran, Iran.

The predacious midge, Aphidoletes aphidimyza (Rondani), is an effective exclusive natural enemy of aphids in greenhouses and field crops. In this study, prey preference of A. aphidimyza was determined using seven treatments including different stages (third-instar nymphs and adults) of two prey species (Aphis gossypii Glover and Myzus persicae (Sulzer)) based on Manly's β preference index. Read More

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http://dx.doi.org/10.1093/jee/toy425DOI Listing
January 2019

Laboratory Screening of 26 Essential Oils Against Cacopsylla chinensis (Hemiptera: Psyllidae) and Field Confirmation of the Top Performer, Perilla frutescens (Lamiales: Lamiaceae).

J Econ Entomol 2019 Jan 11. Epub 2019 Jan 11.

College of Plant Protection, China Agricultural University, Beijing, China.

Similar to other pear psylla species in Europe and America, Cacopsylla chinensis (Yang and Li) is one of the most important pests that causes yield loss in commercial pear orchards in China. To investigate effective essential oils as alternatives to conventional pesticides against C. chinensis, 26 essential oils derived from commonly used Chinese spices and medicinal herbs were screened for insecticidal activity. Read More

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http://dx.doi.org/10.1093/jee/toy414DOI Listing
January 2019

Common Origin of Brazilian and Colombian Populations of the Neotropical Coffee Leaf Miner, Leucoptera coffeella (Lepidoptera: Lyonetiidae).

J Econ Entomol 2019 Jan 11. Epub 2019 Jan 11.

Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, Brazil.

The coffee leaf miner, Leucoptera coffeella (Guérin-Mèneville & Perrottet, 1842), probably infested coffee plants in Neotropical America during the 19th century. The species subsequently became a key pest of coffee plants in Brazil, but not in Colombia, the two main coffee producers in the region. The contrasting importance of the coffee leaf miner in Brazil and Colombia may be the result of the evolutionary and demographic history of this species. Read More

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http://dx.doi.org/10.1093/jee/toy416DOI Listing
January 2019

Bacterial community and metabolome shifts in the cecum and colon of captive sika deer (Cervus nippon) from birth to post weaning.

FEMS Microbiol Lett 2019 Jan 14. Epub 2019 Jan 14.

Department of Special Economic Animal Nutrition and Feed Science, Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun, China.

Ruminant productivity is associated with the gastrointestinal tract bacterial community, which matures progressively with animal growth. However, knowledge of the bacteriome and metabolome dynamics in cecum and colon during the early lives of neonatal ruminants is limited. Thus, we examined the bacteriome and metabolomes of the cecum and colon in neonatal sika deer at days 1, 42 and 70. Read More

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http://dx.doi.org/10.1093/femsle/fnz010DOI Listing
January 2019

Three new species of Tremellomycetes isolated from maize and northern wild rice.

FEMS Yeast Res 2019 Jan 14. Epub 2019 Jan 14.

Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, Peoria, USA.

The present study studied novel basidiomycetous yeasts from maize and northern wild rice plants. From comparisons of ribosomal ITS and LSU (D1 and D2 domains), and subsequent phylogenetic analyses, the following species were resolved and described: Papiliotrema zeae Yurkov & Kurtzman sp. nov. Read More

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http://dx.doi.org/10.1093/femsyr/foz004DOI Listing
January 2019

Preferential flow paths shape the structure of bacterial communities in a clayey till depth profile.

FEMS Microbiol Ecol 2019 Jan 11. Epub 2019 Jan 11.

Geological Survey of Denmark and Greenland, Copenhagen, Denmark.

Preferential flow paths in subsurface soils serve as transport routes for water, dissolved organic matter and oxygen. Little is known about bacterial communities in flow paths or in subsoils below about four metres. We compared communities from preferential flow paths (biopores, fractures and sand lenses) with those in adjacent matrix sediments of clayey till from the plough layer to a depth of six metres. Read More

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http://dx.doi.org/10.1093/femsec/fiz008DOI Listing
January 2019

Evolution of young sex chromosomes in two dioecious sister plant species with distinct sex determination systems.

Genome Biol Evol 2019 Jan 14. Epub 2019 Jan 14.

Univ. Lille, CNRS, UMR 8198 - Evo-Eco-Paleo, Lille, France.

In the last decade, progress has been made in methods to identify the sex determination system in plants. This gives the opportunity to study sex chromosomes that arose independently at different phylogenetic scale, and thus allows the discovery and the understanding of early stages of sex chromosome evolution. In the genus Silene, sex chromosomes have evolved independently in at least two clades from a non-dioecious ancestor, the Melandrium and Otites sections. Read More

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http://dx.doi.org/10.1093/gbe/evz001DOI Listing
January 2019

Involving community in genes and pathway curation.

Database (Oxford) 2019 Jan 1;2019. Epub 2019 Jan 1.

Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, USA.

Biocuration plays a crucial role in building databases and complex systems-level platforms required for processing, annotating and analyzing 'Big Data' in biology. However, biocuration efforts cannot keep pace with a dramatic increase in the production of omics data; this presents one of the bottlenecks in genomics. In two pathway curation jamborees, Plant Reactome curators tested strategies for introducing researchers to pathway curation tools, harnessing biologists' expertise in curating plant pathways and developing a network of community biocurators. Read More

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http://dx.doi.org/10.1093/database/bay146DOI Listing
January 2019

Characterization and identification of long non-coding RNAs based on feature relationship.

Bioinformatics 2019 Jan 12. Epub 2019 Jan 12.

CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China.

Motivation: The significance of long non-coding RNAs (lncRNAs) in many biological processes and diseases has gained intense interests over the past several years. However, computational identification of lncRNAs in a wide range of species remains challenging; it requires prior knowledge of well-established sequences and annotations or species-specific training data, but the reality is that only a limited number of species have high-quality sequences and annotations.

Results: Here we first characterize lncRNAs by contrast to protein-coding RNAs based on feature relationship and find that the feature relationship between ORF (open reading frame) length and GC content presents universally substantial divergence in lncRNAs and protein-coding RNAs, as observed in a broad variety of species. Read More

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https://academic.oup.com/bioinformatics/advance-article/doi/
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http://dx.doi.org/10.1093/bioinformatics/btz008DOI Listing
January 2019
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Fossil pollen and spores as a tool for reconstructing ancient solar-ultraviolet irradiance received by plants: an assessment of prospects and challenges using proxy-system modelling.

Photochem Photobiol Sci 2019 Jan 16. Epub 2019 Jan 16.

Faculty of Science and Technology, Norwegian University of Life Sciences, Norway.

Ultraviolet-B radiation (UV-B, 280-315 nm) constitutes less than 1% of the total solar radiation that reaches the Earth's surface but has a disproportional impact on biological and ecological processes from the individual to the ecosystem level. Absorption of UV-B by ozone is also one of the primary heat sources to the stratosphere, so variations in UV-B have important relationships to the Earth's radiation budget. Yet despite its importance for understanding atmospheric and ecological processes, there is limited understanding about the changes in UV-B radiation in the geological past. Read More

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http://dx.doi.org/10.1039/c8pp00490kDOI Listing
January 2019

Calidifontimicrobium sediminis gen. nov., sp. nov., a new member of the family Comamonadaceae.

Int J Syst Evol Microbiol 2019 Jan 16. Epub 2019 Jan 16.

1​State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, Sun Yat-Sen University, Guangzhou, 510275, PR China.

Two Gram-stain-negative and facultative anaerobic bacteria, designated strains SYSU G00088 and YIM 73032, were isolated from sediment samples collected from hot springs in Tibet, China. Based on the analyses of the 16S rRNA gene sequences, the two isolates were observed to be a member of the family Comamonadaceae, sharing highest pairwise sequence identity with type strains of Piscinibacter defluvii SH-1 (97.8  and 97. Read More

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http://dx.doi.org/10.1099/ijsem.0.003167DOI Listing
January 2019

Proteome profile and genome refinement of the tomato-pathogenic bacterium Clavibacter michiganensis subsp. michiganensis.

Proteomics 2019 Jan 16:e1800224. Epub 2019 Jan 16.

USDA, Agricultural Research Service, Robert W. Holley Center, Ithaca, New York, 14853, USA.

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http://dx.doi.org/10.1002/pmic.201800224DOI Listing
January 2019

Modulation of callus growth and secondary metabolites in different Thymus species and Zataria multiflora micropropagated under ZnO nanoparticles stress.

Biotechnol Appl Biochem 2019 Jan 16. Epub 2019 Jan 16.

Department of Multidisciplinary Studies, National University of Medical Sciences, Rawalpindi, 46000, Pakistan.

Thymus species are aromatic plants with diverse applications in food industries and medicine. This study was conducted to evaluate the potential effect of ZnO nanoparticles on callus proliferation and thymol and carvacrol production in three Thymus species, i.e. Read More

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http://dx.doi.org/10.1002/bab.1727DOI Listing
January 2019

Magnetic liposomal emodin composite with enhanced killing efficiency against breast cancer.

Biomater Sci 2019 Jan 16. Epub 2019 Jan 16.

School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China.

As an active natural ingredient extracted from the plant Rheum palmatum, emodin exhibits various pharmacological activities, especially the inhibition of tumor growth and migration. However, the anticancer activity of emodin is limited mainly due to its poor solubility and the lack of specific targeting. Herein, we employed liposome to load emodin into the lipid bilayer, and high-performance ferromagnetic iron oxide nanocubes were simultaneously encapsulated in the hydrophilic bilayer. Read More

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http://dx.doi.org/10.1039/c8bm01530aDOI Listing
January 2019

Degradation of 2, 2-Dichlorovinyl dimethyl phosphate (dichlorvos) through the rhizosphere interaction between Panicum maximum Jacq and some selected fungi.

Chemosphere 2019 Jan 9;221:403-411. Epub 2019 Jan 9.

Department of Environmental Sciences, COMSATS Institute of Information Technology, 22060 Abbottabad, Pakistan. Electronic address:

Many fungi have been reported to enhance the plant responses and degradation of several persistent pollutants in soils. In this study, five dominant fungi strains were identified from a pesticides polluted soil in Nigeria and screened for the expression of phosphoesterase (opd and mpd) and catechol 1, 2-dioxygenase (afk2 and afk4) genes using Reverse Transcriptase-PCR technique. Their rhizosphere interaction with plant (Panicum maximum) was further studied for the degradation of 2, 2 Dichlorovinyl dimethyl phosphate (dichlorvos). Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.01.058DOI Listing
January 2019
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