11,107 results match your criteria Biocontrol Science And Technology[Journal]


Effects of a Bt-based insecticide on the functional response of Ceraeochrysa cincta preying on Plutella xylostella.

Ecotoxicology 2020 Jul 1. Epub 2020 Jul 1.

Faculty of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, SP, Brazil.

Plutella xylostella, is the main pest infesting Brassica crops, and products based on Bacillus thuringiensis (Bt) are frequently used in strategies for its biocontrol. The present study aimed to evaluate whether a Bt-based bioinsecticide affects the predation behavior of Ceraeochrysa cincta when preying on P. xylostella. Read More

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http://dx.doi.org/10.1007/s10646-020-02244-xDOI Listing

The Putative Methyltransferase LAE1 Is Involved in the Regulation of Peptaibols Production in the Biocontrol Fungus SMF2.

Front Microbiol 2020 12;11:1267. Epub 2020 Jun 12.

State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China.

The biocontrol fungus SMF2 secretes a large quantity of peptaibols that have been shown to have a range of biological activities and therefore great application values. However, the mechanism of the regulatory expression of peptaibols is still unclear. The putative methyltransferase LaeA/LAE1 is a global regulator involved in the biosynthesis of some secondary metabolites in filamentous fungi. Read More

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http://dx.doi.org/10.3389/fmicb.2020.01267DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7307461PMC

A new species of the group (Anura, Ranidae, ) from China, with a taxonomic proposal for the group.

Zookeys 2020 18;942:141-158. Epub 2020 Jun 18.

State Key Laboratory of Biocontrol/ The Museum of Biology, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.

, a new species from Hunan and Jiangxi, southeastern China, is described. The new species is assigned to the group. The clade comprising and from Anhui is the sister taxon of from Sichuan. Read More

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http://dx.doi.org/10.3897/zookeys.942.46928DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7316803PMC

Four new species of Asian horned toads (Anura, Megophryidae, ) from southern China.

Zookeys 2020 18;942:105-140. Epub 2020 Jun 18.

State Key Laboratory of Biocontrol/ The Museum of Biology, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.

Recent phylogenetic analysis encompassing multilocus nuclear-gene and matrilineal mtDNA genealogy has revealed a series of cryptic species of the subgenus Panophrys within genus from southern and eastern China. This study demonstrates that the specimens from the hilly areas among Guangdong, Guangxi and Hunan can be morphologically distinguished from all recognized congeners, thereby providing additional supports for the recognitions of four new species of , namely Megophrys (Panophrys) mirabilis Lyu, Wang & Zhao, from northeastern Guangxi, Megophrys (Panophrys) shimentaina Lyu, Liu & Wang, from northern Guangdong, and Megophrys (Panophrys) xiangnanensis Lyu, Zeng & Wang, and Megophrys (Panophrys) yangmingensis Lyu, Zeng & Wang, from southern Hunan. The descriptions of these species take the number of species to 101, 46 of which belong to the subgenus Panophrys. Read More

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http://dx.doi.org/10.3897/zookeys..47983DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7316820PMC

Comparative genome analysis and mining of secondary metabolites of Paenibacillus polymyxa.

Genes Genet Syst 2020 Jul 2. Epub 2020 Jul 2.

Hebei University of Technology.

Paenibacillus polymyxa is a well-known Gram-positive biocontrol bacterium. It has been reported that many P. polymyxa strains can inhibit bacteria, fungi and other plant pathogens. Read More

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http://dx.doi.org/10.1266/ggs.19-00053DOI Listing

Characterization of two relacidines belonging to a novel class of circular lipopeptides that act against Gram-negative bacterial pathogens.

Environ Microbiol 2020 Jun 30. Epub 2020 Jun 30.

Department of Molecular Genetics, University of Groningen, Groningen, the Netherlands.

The development of sustainable agriculture and the increasing antibiotic resistance of human pathogens call for novel antimicrobial compounds. Here, we describe the extraction and characterization of a class of cationic circular lipopeptides, for which we propose the name relacidines, from the soil bacterium Brevibacillus laterosporus MG64. Relacidines are composed of a fatty acid side chain (4-methylhexanoic acid) and 13 amino acid residues. Read More

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http://dx.doi.org/10.1111/1462-2920.15145DOI Listing

High-definition likelihood inference of genetic correlations across human complex traits.

Nat Genet 2020 Jun 29. Epub 2020 Jun 29.

Biostatistics Group, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.

Genetic correlation is a central parameter for understanding shared genetic architecture between complex traits. By using summary statistics from genome-wide association studies (GWAS), linkage disequilibrium score regression (LDSC) was developed for unbiased estimation of genetic correlations. Although easy to use, LDSC only partially utilizes LD information. Read More

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http://dx.doi.org/10.1038/s41588-020-0653-yDOI Listing

Characterization of the phenotypic and genotypic tolerance to abiotic stresses of natural populations of Heterorhabditis bacteriophora.

Sci Rep 2020 Jun 29;10(1):10500. Epub 2020 Jun 29.

Department of Entomology and the Nematology and Chemistry units, Plant Protection Institute; Agricultural Research Organization (ARO), the Volcani Center, Rishon Le Zion, Israel.

Entomopathogenic nematodes are effective biocontrol agents against arthropod pests. However, their efficacy is limited due to sensitivity to environmental extremes. The objective of the present study was to establish a foundation of genetic-based selection tools for beneficial traits of heat and desiccation tolerance in entomopathogenic nematodes. Read More

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http://dx.doi.org/10.1038/s41598-020-67097-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7324380PMC

[Antagonistic activity of volatile metabolites from Trichoderma asperellum].

Sheng Wu Gong Cheng Xue Bao 2020 Jun;36(6):1181-1189

School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.

Trichoderma spp. is a kind of filamentous fungi with important biocontrol value. Twelve strains of Trichoderma spp. Read More

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http://dx.doi.org/10.13345/j.cjb.190442DOI Listing

Data from extensive comparative measurements of conventional, conservation and organic agricultures in southwestern France.

Data Brief 2020 Aug 7;31:105827. Epub 2020 Jun 7.

INRA, UMR 1248 AGIR, F-31326 Castanet-Tolosan, France.

This article present observational and experimental data describing a range of biotic and abiotic parameters that can be related to ecosystem services under contrasted types of crop management: conventional, conservation and organic agricultures. Ninety fields, either cultivated with winter wheat or fava bean, located in Southwestern France, near Toulouse, were monitored for two growing seasons (2014-2016). The dataset encompass data about crop pests (aphids, grain borer, bean beetles, slugs), crop pest natural enemies (hoverflies, parasitoids, predators), soil sensitivity to erosion, crop productivity, pathogenic fungal infection and root colonization by mycorrhiza. Read More

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http://dx.doi.org/10.1016/j.dib.2020.105827DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7306603PMC

Beyond polyphagy and opportunism: natural prey of hunting spiders in the canopy of apple trees.

PeerJ 2020 19;8:e9334. Epub 2020 Jun 19.

Department of Entomology, Szent István University, Budapest, Hungary.

Spiders (Araneae) form abundant and diverse assemblages in agroecosystems such as fruit orchards, and thus might have an important role as natural enemies of orchard pests. Although spiders are polyphagous and opportunistic predators in general, limited information exists on their natural prey at both species and community levels. Thus, the aim of this study was to assess the natural prey (realized trophic niche) of arboreal hunting spiders, their role in trophic webs and their biological control potential with direct observation of predation events in apple orchards. Read More

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http://dx.doi.org/10.7717/peerj.9334DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7307562PMC

Actinobacteria Associated with Vineyard Soils of Algeria: Classification, Antifungal Potential Against Grapevine Trunk Pathogens and Plant Growth-Promoting Features.

Curr Microbiol 2020 Jun 27. Epub 2020 Jun 27.

Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Algiers, Algeria.

Grapevine trunk diseases (GTDs) are among the most destructive diseases of vineyards worldwide, including Algeria. In the fungal complex involved in GTD symptoms, referred as grapevine trunk-pathogens, Paeomoniella chlamydospora and Phaeoacremonium minimum have a determining infecting role as pioneer fungi. Due to the lack of efficiency of conventional disease management practices, a search for alternative strategies, such as biocontrol, is needed. Read More

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http://dx.doi.org/10.1007/s00284-020-02097-xDOI Listing

The biocontrol agent and insect pathogen interacts with plant roots.

Appl Environ Microbiol 2020 Jun 26. Epub 2020 Jun 26.

Johannes-Gutenberg-University Mainz, Institute of Molecular Physiology (imP), Microbiology and Wine Research, Johann-Joachim-Becher-Weg 13, 55128 Mainz, Germany.

Sustainable agriculture techniques are rising to improve pest management and environmental safety: biological control agents are used to enhance disease resistance and abiotic stress tolerance in crops. Here we investigated the capacity of secondary variant to react to plant root exudates and its behaviour towards microorganisms in the rhizosphere. is known to live in symbiosis with entomopathogenic nematodes (EPNs) and to be highly pathogenic towards insects. Read More

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http://dx.doi.org/10.1128/AEM.00891-20DOI Listing

sp. nov., isolated from a deep well with oil reservoir water.

Int J Syst Evol Microbiol 2020 Jun 26. Epub 2020 Jun 26.

Key Laboratory of Soil Microbiology, Ministry of Agriculture, Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing 100193, PR China.

A Gram-stain-negative, rod-shaped bacterium, designated XJ4, was isolated from oil-contaminated water, collected from Xinjiang Province, north-west PR China (45° 1' 27″ N, 85° 6' 14″ E). Growth occurred at 20-45 °C (optimum, 30 °C) and pH 6.0-10. Read More

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http://dx.doi.org/10.1099/ijsem.0.004294DOI Listing

Lysobacter enzymogenes LE16 autolysates have potential as biocontrol agents.

J Appl Microbiol 2020 Jun 25. Epub 2020 Jun 25.

College of Resources and Environment, Southwest University, Chongqing, China.

Aims: Biological techniques can manage plant diseases safely and in environmentally friendly ways, but their efficacy needs improvement. It is of the utmost importance to search for powerful microbes for the effective control of plant diseases.

Methods And Results: Unheated self-digestive solutions (SDS) that were heated at 100°C for 30 minutes (H-SDS) or stored for 12 months at room temperature (S-SDS) were prepared from Lysobacter enzymogenes LE16 broth culture to study their potential as biocontrol agents. Read More

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http://dx.doi.org/10.1111/jam.14752DOI Listing

Changes in Bacterial and Fungal Microbiomes Associated with Tomatoes of Healthy and Infected by Fusarium oxysporum f. sp. lycopersici.

Microb Ecol 2020 Jun 25. Epub 2020 Jun 25.

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.

Fusarium wilt of tomato caused by the pathogen Fusarium oxysporum f. sp. lycopersici (Fol) is one of the most devastating soilborne diseases of tomato. Read More

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http://dx.doi.org/10.1007/s00248-020-01535-4DOI Listing

Complete Genome Sequence of sp. Strain SK, Isolated from Organic Wheat Rhizosphere.

Microbiol Resour Announc 2020 Jun 25;9(26). Epub 2020 Jun 25.

Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark

Here, we report the annotated whole-genome sequence of sp. strain SK, isolated in India from organic wheat rhizosphere. This strain has proved to be a species with potential biocontrol activity against soilborne plant pathogens based on antiSMASH analysis. Read More

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http://dx.doi.org/10.1128/MRA.00510-20DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7317103PMC

Insights on the anticancer potential of plant-food bioactives: A key focus to prostate cancer.

Cell Mol Biol (Noisy-le-grand) 2020 Jun 25;66(4):250-263. Epub 2020 Jun 25.

Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Prostate cancer is an international health problem and represents one of the most encountered malignancies among men. In this complex and heterogeneous disease, androgens and their receptors play a crucial role in both progression and development. Although the search for its effective treatment is still ongoing, among other priorities it requires developing better anticancer agents with greater efficacy and fewer side effects. Read More

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June 2020
1.234 Impact Factor

Unveiling the Microbiota Diversity of the Xerophyte Argania spinosa L. Skeels Root System and Residuesphere.

Microb Ecol 2020 Jun 25. Epub 2020 Jun 25.

Department of Food Environmental and Nutritional Sciences, Università degli Studi di Milano, 20133, Milan, Italy.

The microbiota associated to xerophyte is a "black box" that might include microbes involved in plant adaptation to the extreme conditions that characterize their habitat, like water shortage. In this work, we studied the bacterial communities inhabiting the root system of Argania spinosa L. Skeels, a tree of high economic value and ecological relevance in Northern Africa. Read More

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http://dx.doi.org/10.1007/s00248-020-01543-4DOI Listing

Natural Holobiome Engineering by Using Native Extreme Microbiome to Counteract the Climate Change Effects.

Front Bioeng Biotechnol 2020 4;8:568. Epub 2020 Jun 4.

Biocontrol Research Laboratory, Universidad de La Frontera, Temuco, Chile.

In the current scenario of climate change, the future of agriculture is uncertain. Climate change and climate-related disasters have a direct impact on biotic and abiotic factors that govern agroecosystems compromising the global food security. In the last decade, the advances in high throughput sequencing techniques have significantly improved our understanding about the composition, function and dynamics of plant microbiome. Read More

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http://dx.doi.org/10.3389/fbioe.2020.00568DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7287022PMC

Generation of Myeloid Cells in Cancer: The Spleen Matters.

Front Immunol 2020 5;11:1126. Epub 2020 Jun 5.

MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.

Myeloid cells are key components of the tumor microenvironment and critical regulators of disease progression. These innate immune cells are usually short-lived and require constant replenishment. Emerging evidence indicates that tumors alter the host hematopoietic system and induce the biased differentiation of myeloid cells to tip the balance of the systemic immune activities toward tumor-promoting functions. Read More

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http://dx.doi.org/10.3389/fimmu.2020.01126DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7291604PMC

Notes on the hosts of Ashmead (Hymenoptera: Scelionidae) from China.

Biodivers Data J 2020 11;8:e53786. Epub 2020 Jun 11.

State Key Laboratory of Biocontrol, School of Ecology, Sun Yat-sen University, Guangzhou, China State Key Laboratory of Biocontrol, School of Ecology, Sun Yat-sen University Guangzhou China.

Background: Ashmead (Hymenoptera: Scelionidae) is a cosmopolitan genus of egg-parasitoid wasps associated with stink bugs (Pentatomidae, Scutelleridae, Urostylididae), many of which are important insect pests. Documentation of host associations for these wasps, which we here provide via museum specimens, can support their use as biological control agents of invasive stink bugs.

New Information: The hosts of seven species are reported from China: (Mayr) (hosts: Stål, Pentatomidae; Distant, Urostylididae), (Watanabe) (host: (Dallas), Pentatomidae), (Ashmead) (hosts: (Thunberg), Pentatomidae; (Poda), Pentatomidae), (Crawford) (host: Dallas, Scutelleridae), (Ashmead) (host: Pentatomidae), (Nees von Esenbeck) (host: sp. Read More

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http://dx.doi.org/10.3897/BDJ.8.e53786DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7303229PMC

Complete genome sequence of sixteen plant growth promoting Streptomyces strains.

Sci Rep 2020 Jun 24;10(1):10294. Epub 2020 Jun 24.

International Crops Research Institute for the Semi-Arid Tropics, Hyderabad, India.

The genome sequences of 16 Streptomyces strains, showing potential for plant growth-promotion (PGP) activities in rice, sorghum, chickpea and pigeonpea, isolated from herbal vermicompost, have been decoded. The genome assemblies of the 16 Streptomyces strains ranged from 6.8 Mb to 8. Read More

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http://dx.doi.org/10.1038/s41598-020-67153-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7314817PMC

S-methyl Methanethiosulfonate: Promising Late Blight Inhibitor or Broad Range Toxin?

Pathogens 2020 Jun 22;9(6). Epub 2020 Jun 22.

Department of Biology, University of Fribourg, 1702 Fribourg, Switzerland.

(1) Background: S-methyl methanethiosulfonate (MMTS), a sulfur containing volatile organic compound produced by plants and bacterial species, has recently been described to be an efficient anti-oomycete agent with promising perspectives for the control of the devastating potato late blight disease caused by However, earlier work raised questions regarding the putative toxicity of this compound. To assess the suitability of MMTS for late blight control in the field, the present study thus aimed at evaluating the effect of MMTS on a wide range of non-target organisms in comparison to . (2) Methods: To this end, we exposed as well as different pathogenic and non-pathogenic fungi, bacteria, the nematode as well as the plant to MMTS treatment and evaluated their response by means of in vitro assays. Read More

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http://dx.doi.org/10.3390/pathogens9060496DOI Listing

Beneficial effects of Trichoderma secondary metabolites on crops.

Phytother Res 2020 Jun 23. Epub 2020 Jun 23.

UWA School of Agriculture and Environment, The University of Western Australia, Crawley, Nedlands, Australia.

Selected microbial strains used as active ingredients of biopesticides for agricultural management practices (e.g., IPM, Integrated Pest Management) are known for their ability to control phytopathogens, promote plant growth, and/or induce disease resistance. Read More

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http://dx.doi.org/10.1002/ptr.6728DOI Listing

Draft genome sequence data of strain TH2H2, isolated from a tomato flower in Korea.

Data Brief 2020 Aug 10;31:105824. Epub 2020 Jun 10.

Department of Plant Medicine and RILS, Gyeongsang National University, Jinju 52828, Republic of Korea.

Members of the genus are known for their production of useful substances, and some species of the genus are recognized to be plant growth-promoting rhizobacteria. TH2H2, isolated from a tomato flower, had antifungal activity. Here, the draft genome sequence of TH2H2 is reported. Read More

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http://dx.doi.org/10.1016/j.dib.2020.105824DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7305405PMC

Single AAV-Mediated CRISPR-SaCas9 Inhibits HSV-1 Replication by Editing ICP4 in Trigeminal Ganglion Neurons.

Mol Ther Methods Clin Dev 2020 Sep 22;18:33-43. Epub 2020 May 22.

State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.

Herpes simplex keratitis (HSK) is the most common cause of corneal blindness in developed nations, caused by primary or recurrent herpes simplex virus 1 (HSV-1) infection of the cornea. Latent infection of HSV-1, especially in the trigeminal ganglion (TG), causes recurrence of HSV-1 infection. As antiviral treatment is not effective on latent HSV-1, to test the possibility of inhibiting HSV-1 by SpCas9 ( Cas9) or SaCas9 ( Cas9), and , two important genes required for HSV-1 replication and reactivation, were chosen as targets. Read More

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http://dx.doi.org/10.1016/j.omtm.2020.05.011DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7298336PMC
September 2020

Notes on Westwood (Hymenoptera, Scelionidae) from China, with description of a new species.

Zookeys 2020 9;939:29-43. Epub 2020 Jun 9.

State Key Laboratory of Biocontrol, School of Life Sciences / School of Ecology, Sun Yat-sen University, Guangzhou 510275, China Sun Yat-sen University Guangzhou China.

The wasp genus Westwood from China has been previously revised, but some species are only known from males. Here the females of two known species are described: Chen, Johnson, Masner & Xu and Chen, Johnson, Masner & Xu. In addition, one species is redescribed: Kozlov & Kononova; and one species is described as new: Hong & Chen, Kononova, is proposed as new synonym of Kozlov & Kononova. Read More

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http://dx.doi.org/10.3897/zookeys.939.51272DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7297806PMC

The Role of Biofilms in the Development and Dissemination of Microbial Resistance within the Food Industry.

Foods 2020 Jun 21;9(6). Epub 2020 Jun 21.

Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France.

Biofilms are multicellular sessile microbial communities embedded in hydrated extracellular polymeric matrices. Their formation is common in microbial life in most environments, while those formed on food-processing surfaces are of considerable interest in the context of food hygiene. Biofilm cells express properties that are distinct from planktonic ones, in particular, notorious resistance to antimicrobial agents. Read More

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http://dx.doi.org/10.3390/foods9060816DOI Listing

Application of , 6-pentyl-α-pyrone and Plant Biopolymer Formulations Modulate Plant Metabolism and Fruit Quality of Plum Tomatoes.

Plants (Basel) 2020 Jun 19;9(6). Epub 2020 Jun 19.

National Research Council, Institute for Sustainable Plant Protection, 80055 Portici, Italy.

Many are successfully used to improve agriculture productivity due to their capacity for biocontrol and to stimulate plant growth and tolerance to abiotic stress. This research elucidates the effect of applications with strain T22 (T22), or biopolymer (BP) alone or in combination (BP + T22 or BP + 6-pentyl-α-pyrone (6PP); a secondary metabolite) on the crop performance, nutritional and functional quality of greenhouse tomato ( L. cultivar Pixel). Read More

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http://dx.doi.org/10.3390/plants9060771DOI Listing

Esters of Glucose-2-Phosphate: Occurrence and Chemistry.

Molecules 2020 Jun 19;25(12). Epub 2020 Jun 19.

Univ Lyon, Université Claude Bernard Lyon 1, CNRS, INSA Lyon, CPE Lyon, ICBMS, UMR 5246, Bât. E. Lederer, 1 rue Victor Grignard, F-69622 Villeurbanne, France.

Phosphodiesters of glucose-2-phosphate (G2P) are found only in few natural compounds such as agrocinopine D and agrocin 84. Agrocinopine D is a G2P phosphodiester produced by plants infected by C58 and recognized by the bacterial periplasmic binding protein AccA for being transported into the bacteria before cleavage by the phosphodiesterase AccF, releasing G2P, which promotes virulence by binding the repressor protein AccR. The G2P amide agrocin 84 is a natural antibiotic produced by the non-pathogenic K84 strain used as a biocontrol agent by competing with C58. Read More

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http://dx.doi.org/10.3390/molecules25122829DOI Listing

Bacillus tepidiphilus sp. nov., isolated from tepid spring.

Arch Microbiol 2020 Jun 22. Epub 2020 Jun 22.

State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.

A novel Bacillus strain, designated SYSU G01002, was isolated from a sediment sample collected from tepid spring in Tengchong, Yunnan province, south-west PR China. The 16S rRNA gene sequence analysis showed that the strain SYSU G01002 shared the highest sequence identity with the type strain of Bacillus alkalitolerans (97.7%). Read More

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http://dx.doi.org/10.1007/s00203-020-01958-0DOI Listing

An integrative DNA barcoding framework of ladybird beetles (Coleoptera: Coccinellidae).

Sci Rep 2020 Jun 22;10(1):10063. Epub 2020 Jun 22.

Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm; Department of Forest Protection, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510640, China.

Even though ladybirds are well known as economically important biological control agents, an integrative framework of DNA barcoding research was not available for the family so far. We designed and present a set of efficient mini-barcoding primers to recover full DNA barcoding sequences for Coccinellidae, even for specimens collected 40 years ago. Based on these mini-barcoding primers, we obtained 104 full DNA barcode sequences for 104 species of Coccinellidae, in which 101 barcodes were newly reported for the first time. Read More

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http://dx.doi.org/10.1038/s41598-020-66874-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7308296PMC

: The "Secrets" of a Multitalented Biocontrol Agent.

Plants (Basel) 2020 Jun 18;9(6). Epub 2020 Jun 18.

State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.

The plant--pathogen triangle is a complicated web of numerous processes. spp. are avirulent opportunistic plant symbionts. Read More

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http://dx.doi.org/10.3390/plants9060762DOI Listing

Increased nitrogen fertilization inhibits the biocontrol activity promoted by the intercropping partner plant.

Insect Sci 2020 Jun 22. Epub 2020 Jun 22.

Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, 100193, China.

The examination of the compatibility between agricultural practices and biocontrol activities is crucial for establishing an efficient, eco-friendly, and sustainable pest management program. In this study, we examined the population dynamics of two specialist aphids, the English grain aphid (Sitobion avenae) on potted wheat and the pea aphid (Acyrthosiphon pisum) on potted alfalfa, as well as the biocontrol activity of a generalist predator, the harlequin ladybird beetle (Harmonia axyridis). We investigated their responses to the presence of the intercropping partner plant species (alfalfa and wheat, respectively) through plant volatiles or visual cues at three nitrogen fertilizer levels in a greenhouse. Read More

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http://dx.doi.org/10.1111/1744-7917.12843DOI Listing

Author Correction: Review of the genus (Anura: Megophryidae), with revalidation of and description of a new species from China.

Zool Res 2020 Jul;41(4):476

State Key Laboratory of Biocontrol / The Museum of Biology, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China. E-mail:

Following the publication of our paper (Li et al., 2020), it has come to our attention that, due to our oversight, the contributions of some colleagues were not reflected in the "ACKNOWLEDGEMENTS" section. Hereby, we wish to add the following to the "ACKNOWLEDGEMENTS" section as a correction. Read More

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http://dx.doi.org/10.24272/j.issn.2095-8137.2020.040DOI Listing

FoxO directly regulates the expression of TOR/S6K and vitellogenin to modulate the fecundity of the brown planthopper.

Sci China Life Sci 2020 Jun 18. Epub 2020 Jun 18.

State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.

As a conserved transcription factor, FoxO plays a crucial role in multiple physiological processes in vivo, including stress resistance, longevity, growth and reproduction. Previous studies on FoxO have focused on human, mouse, Drosophila melanogaster and Caenorhabditis elegans, while there are few reports on agricultural pests and little is known about how FoxO modulates insect fecundity. In Asia, the brown planthopper (BPH) Nilaparvata lugens (Stål) is one of the most serious pests in rice production and high fecundity is the basis of the outbreak of BPH. Read More

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http://dx.doi.org/10.1007/s11427-019-1734-6DOI Listing

Does Pallister really affects the growth, density and reproductive performance of L?

Saudi J Biol Sci 2020 Jul 30;27(7):1871-1878. Epub 2020 Mar 30.

Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.

Pallister (Coleoptera: Chrysomelidae) is a satisfactory potential candidate for controlling L The study was conducted in order to evaluate the bio-control potential of to satisfactory reduced the density of parthenium weed in natural field conditions. Therefore, beetles were released in the twelve study sites @ 12 adults and/or larvae/m in their respective sites on 5th, 10th, 15th and 20th day after initial field releases. Observations were made on defoliation by the beetle perthenium plant height, plant biomass, leaf injury rating and soil seed reservoir. Read More

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http://dx.doi.org/10.1016/j.sjbs.2020.03.023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7296485PMC

Biocontrol of Alternaria alternata and Fusarium oxysporum by Trichoderma asperelloides and Bacillus paralicheniformis in tomato plants.

Antonie Van Leeuwenhoek 2020 Jun 20. Epub 2020 Jun 20.

Instituto de Agroindustrias, Universidad Tecnológica de la Mixteca, Carretera a Acatlima km 2.5, 69000, Huajuapan de León, Oaxaca, México.

The objective of this work was to evaluate the effectiveness of the putative biocontrol agents (PBA) Bacillus paralicheniformis and Trichoderma asperelloides in vitro and in vivo to control two of the most important tomato plant diseases: vascular wilt (Fusarium oxysporum) and early blight (Alternaria alternata). The assessment of the in vitro interactions between the PBA and the phytopathogenic fungi was performed by dual confrontation assays. The biocontrol effectiveness of the individual and combined PBA treatments towards individual phytopathogen inoculations was evaluated in tomato plants. Read More

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http://dx.doi.org/10.1007/s10482-020-01433-2DOI Listing

Disentangling the evolutionary history and biogeography of hill partridges (Phasianidae, Arborophila) from low coverage shotgun sequences.

Mol Phylogenet Evol 2020 Jun 17:106895. Epub 2020 Jun 17.

MOE Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing 100875, China. Electronic address:

The advent of the phylogenomic era has significantly improved our understanding of the evolutionary history and biogeography of Southeast Asia's diverse avian fauna. However, the taxonomy and phylogenetic relationships of many Southeast Asian birds remain poorly resolved, especially for those with large geographically range, which might have experienced both ancient and recent geological and environmental changes. In this study, we examined the evolutionary history and biogeography of the hill partridges (Galliformes: Phasianidae: Arborophila spp. Read More

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http://dx.doi.org/10.1016/j.ympev.2020.106895DOI Listing

A chromosome-level genome assembly of the parasitoid wasp Pteromalus puparum.

Mol Ecol Resour 2020 Jun 20. Epub 2020 Jun 20.

State Key Laboratory of Rice Biology, Ministry of Agricultural and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests & Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.

Parasitoid wasps represent a large proportion of hymenopteran species. They have complex evolutionary histories and are important biocontrol agents. To advance parasitoid research, a combination of Illumina short-read, PacBio long-read, and Hi-C scaffolding technologies was used to develop a high-quality chromosome-level genome assembly for Pteromalus puparum, which is an important pupal endoparasitoid of caterpillar pests. Read More

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http://dx.doi.org/10.1111/1755-0998.13206DOI Listing

In vitro and in planta antagonistic effects of plant growth promoting rhizobacteria consortium against soilborne plant pathogens of Solanum tuberosum and S. lycopersicum.

FEMS Microbiol Lett 2020 Jun 20. Epub 2020 Jun 20.

Potatoes (Solanum tuberosum L.) and tomatoes (Solanum lycopersicum L.), among the main crops belonging to the Solanaceae family, are attacked by several pathogens. Read More

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http://dx.doi.org/10.1093/femsle/fnaa099DOI Listing

Soil nitrogen concentration mediates the relationship between leguminous trees and neighbor diversity in tropical forests.

Commun Biol 2020 Jun 19;3(1):317. Epub 2020 Jun 19.

Forest Research Institute Malaysia, 52109, Kepong, Selangor, Malaysia.

Legumes provide an essential service to ecosystems by capturing nitrogen from the atmosphere and delivering it to the soil, where it may then be available to other plants. However, this facilitation by legumes has not been widely studied in global tropical forests. Demographic data from 11 large forest plots (16-60 ha) ranging from 5. Read More

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http://dx.doi.org/10.1038/s42003-020-1041-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7305120PMC

Toward the Integration of an Attract-and-Kill Approach with Entomopathogenic Nematodes to Control Multiple Life Stages of Plum Curculio (Coleoptera: Curculionidae).

Insects 2020 Jun 17;11(6). Epub 2020 Jun 17.

USDA-ARS, Appalachian Fruit Research Station, Kearneysville, WV 25430, USA.

Efforts to reduce insecticide inputs against plum curculio, , a key pest of apples in eastern North America, include perimeter-row insecticide sprays applied after the whole-orchard petal fall spray to manage dispersing adults and, more recently, insecticide sprays confined to odor-baited trap trees. Entomopathogenic nematodes (EPNs) are virulent to ground-dwelling stages of , and may be applied to the ground underneath trap-tree canopies. Here, we (1) compared the efficacy of the odor-baited trap tree approach with grower-prescribed (=grower standard) sprays to manage populations over a six-year period in seven commercial apple orchards in New England; and (2) assessed the performance of the EPN at suppressing ground-dwelling stages of . Read More

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http://dx.doi.org/10.3390/insects11060375DOI Listing

In Vitro Assessment of Biocontrol Effects on Fusarium Head Blight and Deoxynivalenol (DON) Accumulation by DON-Degrading Bacteria.

Toxins (Basel) 2020 Jun 16;12(6). Epub 2020 Jun 16.

Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan.

Fusarium head blight (FHB) of cereals is a severe disease caused by the species complex. It leads to the accumulation of the mycotoxin deoxynivalenol (DON) in grains and other plant tissues and causes substantial economic losses throughout the world. DON is one of the most troublesome mycotoxins because it is a virulence factor to host plants, including wheat, and exhibits toxicity to plants and animals. Read More

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http://dx.doi.org/10.3390/toxins12060399DOI Listing

Corrigendum: Update on the classification of higher ranks in the phylum .

Int J Syst Evol Microbiol 2020 Apr;70(4):2958

CAS Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Urumqi, 830011, PR China.

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http://dx.doi.org/10.1099/ijsem.0.004110DOI Listing

Benzo[a]pyrene promotes progression in tongue squamous cell carcinoma.

Oral Dis 2020 Jun 18. Epub 2020 Jun 18.

MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.

Objectives: Benzo[a]pyrene (B[a]P) is a member of the polycyclic aromatic hydrocarbon (PAH) family. Although the potent carcinogenicity of high-dose B[a]P has been extensively reported, the effects of long-term exposure to B[a]P on the progression of tongue squamous cell carcinoma (TSCC) are poorly understood.

Methods: In the present study, TSCC cells were treated with 5 nM or 50 nM of B[a]P for three months. Read More

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http://dx.doi.org/10.1111/odi.13489DOI Listing

The lncRNA LAMP5-AS1 drives leukemia cell stemness by directly modulating DOT1L methyltransferase activity in MLL leukemia.

J Hematol Oncol 2020 Jun 17;13(1):78. Epub 2020 Jun 17.

MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.

Background: Mixed-lineage leukemia (MLL) gene rearrangements trigger aberrant epigenetic modification and gene expression in hematopoietic stem and progenitor cells, which generates one of the most aggressive subtypes of leukemia with an apex self-renewal. It remains a challenge to directly inhibit rearranged MLL itself because of its multiple fusion partners and the poorly annotated downstream genes of MLL fusion proteins; therefore, novel therapeutic targets are urgently needed.

Methods: qRT-PCR, receiver operating characteristic (ROC), and leukemia-free survival analysis were used to validate LAMP5-AS1 (LAMP5 antisense 1) expression and evaluate its clinical value. Read More

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http://dx.doi.org/10.1186/s13045-020-00909-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7302350PMC

Chromosome-scale genome assembly of strain Fo47, a fungal endophyte and biocontrol agent.

Mol Plant Microbe Interact 2020 Jun 18. Epub 2020 Jun 18.

Xi'an Jiaotong University, 12480, Electronic and Information Engineering, Xi'an, Shaanxi, China;

Here, we report a chromosome-level genome assembly of strain Fo47 (12 pseudomolecules; contig N50: 4.52Mb), generated using a combination of PacBio long-read, Illumina paired end and Hi-C sequencing data. Although causes vascular wilt to over 100 plant species, the strain Fo47 is classified as an endophyte and widely used as a biocontrol agent for plant disease control. Read More

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http://dx.doi.org/10.1094/MPMI-05-20-0116-ADOI Listing

Genome Resources for the endophytic fungus Paraphaeosphaeria sporulosa.

Mol Plant Microbe Interact 2020 Jun 17. Epub 2020 Jun 17.

University of Pisa, Department of Agricultural, Food and Environment, Via del Borghetto 80, Pisa, Italy, 56124;

Paraphaeosphaeria genus includes plant pathogens or biocontrol agents, as well as bioremediators and endophytic fungi. Paraphaeosphaeria sporulosa 10515 was isolated in 2013 as an endophyte of Festuca spp. collected on Mount Etna at 1832 m above the sea level. Read More

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http://dx.doi.org/10.1094/MPMI-04-20-0097-ADOI Listing