keyword
MENU ▼
Read by QxMD icon Read
search

Biocontrol

keyword
https://www.readbyqxmd.com/read/29334476/biological-control-of-botrytis-cinerea-interactions-with-native-vineyard-yeasts-from-washington-state
#1
Xuefei Wang, Dean A Glawe, Elizabeth K Kramer, David M Weller, Patricia Ann Okubara
Native yeasts are of increasing interest to researchers, grape growers, and vintners because of their potential for biocontrol activity, and their contributions to the aroma, flavor and mouthfeel qualities of wines. To assess biocontrol activity, we tested 11 yeasts from Washington vineyards, representing isolates of Candida saitoana, Curvibasidium pallidicorallinum, Metschnikowia chrysoperlae, Metschnikowia pulcherrima, Meyerozyma guilliermondii, Saccharomyces cerevisiae and Wickerhamomyces anomalus, for ability to colonize 'Thompson Seedless' grape berries, inhibit the growth of Botrytis cinerea in vitro, and suppress disease symptoms on isolated berries...
January 15, 2018: Phytopathology
https://www.readbyqxmd.com/read/29330592/genomic-characterization-of-key-bacteriophages-to-formulate-the-potential-biocontrol-agent-to-combat-enteric-pathogenic-bacteria
#2
Krupa M Parmar, Nishant A Dafale, Hitesh Tikariha, Hemant J Purohit
Combating bacterial pathogens has become a global concern especially when the antibiotics and chemical agents are failing to control the spread due to its resistance. Bacteriophages act as a safe biocontrol agent by selectively lysing the bacterial pathogens without affecting the natural beneficial microflora. The present study describes the screening of prominent enteric pathogens NDK1, NDK2, NDK3, and NDK4 (Escherichia, Klebsiella, Enterobacter, and Serratia) mostly observed in domestic wastewater; against which KNP1, KNP2, KNP3, and KNP4 phages were isolated...
January 12, 2018: Archives of Microbiology
https://www.readbyqxmd.com/read/29327645/identification-and-characterization-of-chitinolytic-bacteria-isolated-from-a-freshwater-lake
#3
Dinh Minh Tran, Hayuki Sugimoto, Dzung Anh Nguyen, Takeshi Watanabe, Kazushi Suzuki
To develop a novel type of biocontrol agent, we focus on bacteria that are characterized by both chitinase activity and biofilm development. Chitinolytic bacteria were isolated from sediments and chitin flakes immersed in the water of a sand dune lake, Sakata, in Niigata, Japan. Thirty-one isolates from more than 5100 isolated strains were examined chitinase activity and biofilm formation. Phylogenetic analysis of these isolates based on the 16S rRNA gene sequences revealed that most isolates belonged to the family Aeromonadaceae, followed by Paenibacillaceae, Enterobacteriaceae, and Neisseriaceae...
January 12, 2018: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29327235/complete-genome-sequence-of-a-phage-hyperparasite-of-candidatus-xenohaliotis-californiensis-rickettsiales-a-pathogen-of-haliotis-spp-gasteropoda
#4
Roberto Flores, Jorge Cáceres-Martínez, Miguel Ángel Del Río-Portilla, Alexei F Licea-Navarro, Ricardo Gonzales-Sánchez, Abraham Guerrero
Bacteriophages are recognized as major mortality agents of microbes, among them intracellular marine rickettsiales-like bacteria. Recently, a phage hyperparasite of Candidatus Xenohaliotis californiensis (CXc) has been described. This bacterium is considered the causal agent of Withering Syndrome (WS) which is a chronic and potentially lethal disease of abalone species from California, USA and the peninsula of Baja California, Mexico. This hyperparasite which infects CXc could be used as a biocontrol agent for WS...
January 11, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29323243/expression-of-cry2ah1-and-two-domain-ii-mutants-in-transgenic-tobacco-confers-high-resistance-to-susceptible-and-cry1ac-resistant-cotton-bollworm
#5
Shengyan Li, Zeyu Wang, Yiyao Zhou, Changhui Li, Guiping Wang, Hai Wang, Jie Zhang, Gemei Liang, Zhihong Lang
To improve the novel Bacillus thuringiensis insecticidal gene cry2Ah1 toxicity, two mutants cry2Ah1-vp (V354VP) and cry2Ah1-sp (V354SP) were performed. SWISS-MODEL analysis showed two mutants had a longer loop located between β-4 and β-5 of domain II, resulting in higher binding affinity with brush border membrane vesicles (BBMV) of Helicoverpa armigera comparing with Cry2Ah1. The cry2Ah1, cry2Ah1-vp, and cry2Ah1-sp were optimized codon usage according to plant codon bias, and named mcry2Ah1, mcry2Ah1-vp, and mcry2Ah1-sp...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29313197/exploiting-rhizosphere-microbial-cooperation-for-developing-sustainable-agriculture-strategies
#6
Yoann Besset-Manzoni, Laura Rieusset, Pierre Joly, Gilles Comte, Claire Prigent-Combaret
The rhizosphere hosts a considerable microbial community. Among that community, bacteria called plant growth-promoting rhizobacteria (PGPR) can promote plant growth and defense against diseases using diverse distinct plant-beneficial functions. Crop inoculation with PGPR could allow to reduce the use of pesticides and fertilizers in agrosystems. However, microbial crop protection and growth stimulation would be more efficient if cooperation between rhizosphere bacterial populations was taken into account when developing biocontrol agents and biostimulants...
January 8, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29309732/characteristic-and-application-of-a-novel-species-of-bacillus-bacillus-velezensis
#7
Miao Ye, Xiangfang Tang, Ru Yang, Hongfu Zhang, Fangshu Li, Fangzheng Tao, Fei Li, Zaigui Wang
Bacillus velezensis has been investigated and applied more and more widely because it can inhibit fungi and bacteria, and become a potential biocontrol agent recently. In order to provide more clear and comprehensive understanding of B. velezensis for researchers, we collected the recent relevant articles systematically and reviewed the discovery and taxonomy, secondary metabolites, characteristic and application, gene function and molecular research of B. velezensis. This article will give some directions to the research and application of this strain for future...
January 8, 2018: ACS Chemical Biology
https://www.readbyqxmd.com/read/29306392/effects-of-increased-zooplankton-biomass-on-phytoplankton-and-cyanotoxins-a-tropical-mesocosm-study
#8
Juliana Dos Santos Severiano, Viviane Lúcia Dos Santos Almeida-Melo, Maria do Carmo Bittencourt-Oliveira, Mathias Ahii Chia, Ariadne do Nascimento Moura
Zooplankton are important biocontrol agents for algal blooms in temperate lakes, while their potential in tropical and subtropical environments is not well understood. The aim of the present study was to evaluate the influence of increased zooplankton biomass on phytoplankton community and cyanotoxins (microcystins and saxitoxin) content of a tropical reservoir (Ipojuca reservoir, Brazil) using in situ mesocosms. Mesocosms consisted of 50L transparent polyethylene bags suspended in the reservoir for twelve days...
January 2018: Harmful Algae
https://www.readbyqxmd.com/read/29305895/microbial-and-viral-chitinases-attractive-biopesticides-for-integrated-pest-management
#9
REVIEW
Francesca Berini, Chen Katz, Nady Gruzdev, Morena Casartelli, Gianluca Tettamanti, Flavia Marinelli
The negative impact of the massive use of synthetic pesticides on the environment and on human health has stimulated the search for environment-friendly practices for controlling plant diseases and pests. Among them, biocontrol, which relies on using beneficial organisms or their products (bioactive molecules and/or hydrolytic enzymes), holds the greatest promise and is considered a pillar of integrated pest management. Chitinases are particularly attractive to this purpose since they have fungicidal, insecticidal, and nematicidal activities...
January 3, 2018: Biotechnology Advances
https://www.readbyqxmd.com/read/29304187/enhancing-water-stress-tolerance-improves-fitness-in-biological-control-strains-of-lactobacillus-plantarum-in-plant-environments
#10
Núria Daranas, Esther Badosa, Jesús Francés, Emilio Montesinos, Anna Bonaterra
Lactobacillus plantarum strains PM411 and TC92 can efficiently control bacterial plant diseases, but their fitness on the plant surface is limited under unfavourable low relative humidity (RH) conditions. To increase tolerance of these strains to water stress, an adaptive strategy was used consisting of hyperosmotic and acidic conditions during growth. Adapted cells had higher survival rates under desiccation than non-adapted cells. Transcript levels and patterns of general stress-related genes increased immediately after the combined-stress adaptation treatment, and remained unaltered or repressed during the desiccation challenge...
2018: PloS One
https://www.readbyqxmd.com/read/29304008/biological-control-products-for-aflatoxin-prevention-in-italy-commercial-field-evaluation-of-atoxigenic-aspergillus-flavus-active-ingredients
#11
Antonio Mauro, Esther Garcia-Cela, Amedeo Pietri, Peter J Cotty, Paola Battilani
Since 2003, non-compliant aflatoxin concentrations have been detected in maize produced in Italy. The most successful worldwide experiments in aflatoxin prevention resulted from distribution of atoxigenic strains of Aspergillusflavus to displace aflatoxin-producers during crop development. The displacement results in lower aflatoxin concentrations in harvested grain. The current study evaluated in field performances of two atoxigenic strains of A. flavus endemic to Italy in artificially inoculated maize ears and in naturally contaminated maize...
January 5, 2018: Toxins
https://www.readbyqxmd.com/read/29301688/plasticity-in-reproductive-output-and-development-in-response-to-thermal-variation-in-ladybird-beetle-menochilus-sexmaculatus
#12
Shashwat Singh, Geetanjali Mishra, Omkar
All organisms are exposed to daily as well as seasonal variation in temperature in nature. However, ectotherms are strongly affected by temperature and its variations. Most laboratory studies on effect of temperature on life history traits employ constant instead of fluctuating temperature regimes, though the latter is more reflective of nature. We conducted investigations on the effect of constant, fluctuating and alternate temperature regimes on reproductive and developmental attributes of a biocontrol agent ladybird, Menochilus sexmaculatus (Fabricius) (Coleoptera: Coccinellidae)...
January 2018: Journal of Thermal Biology
https://www.readbyqxmd.com/read/29283262/production-of-antifungal-p-aminobenzoic-acid-in-lysobacter-antibioticus-oh13
#13
Pedro Laborda, Yangyang Zhao, Jun Ling, Rongxian Hou, Fengquan Liu
Among Lysobacter species, Lysobacter antibioticus has been demonstrated to be an interesting source of antimicrobial metabolites for the biocontrol of plant diseases. Although the antibacterial activity was attributed to N-oxide phenazines, the active compounds involved in the antifungal function remained unknown. In this work, an antifungal compound has been isolated and identified as p-aminobenzoic acid (pABA). Antifungal activity screening revealed that pABA shows activity against a number of plant pathogens...
December 28, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29283038/humanitarian-quarantine-in-practice-medicine-religion-and-leprosy-in-new-caledonia
#14
Ingrid J Sykes
Medicine and religion worked in close synchronisation during the leprosy outbreak of New Caledonia (1890-1950). Once isolation of leprosy-affected people became mandatory doctors and missionaries came together to promote a particular form of medical practice that tied charitable zeal with cutting-edge medical research, developing a sophisticated set of medical practices that catered for the soul as well as the body. Such practices went hand-in-hand with ideas developed by doctors in the earlier stages of the epidemic about the way in which the disease had entered the Kanak (local Melanesian) population...
December 2017: Anthropology & Medicine
https://www.readbyqxmd.com/read/29280555/rhizosphere-associated-alcaligenes-and-bacillus-strains-that-induce-resistance-against-blast-and-sheath-blight-diseases-enhance-plant-growth-and-improve-mineral-content-in-rice
#15
Kaleem U Kakar, Zarqa Nawaz, Zhouqi Cui, Abdulwareth A Almoneafy, Raqeeb Ullah, Qing-Yao Shu
AIMS: To examine the biocontrol activities of five rhizobacterial strains (i.e., Alcaligenes faecalis strains Bk1 and P1, Bacillus amyloliquefaciens strain Bk7, and Brevibacillus laterosporus stains B4 and S5), control the rice blast and sheath blight diseases in greenhouse, and to study their possible modes of action. METHODS AND RESULTS: Five potential plant growth promoting rhizobacterial (PGPR) strains isolated from rice rhizospheres, were tested for in vitro antifungal activities against Magnaporthe oryzae, Rhizoctonia solanii, Botrytis cinerea and Fusarium graminearum...
December 27, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29280336/assessing-the-current-and-future-biological-control-potential-of-trichogramma-ostriniae-on-its-hosts-ostrinia-furnacalis-and-ostrinia-nubilalis
#16
Li-Hsin Wu, Matthew P Hill, Linda J Thomson, Ary A Hoffmann
BACKGROUND: Understanding interactions between biocontrol agents and their pest hosts under climate change should assist implementation of biocontrol strategies, by identifying appropriate biocontrol agents for release or determining the optimal timing of releases. Species Distribution Models (SDMs) are applied to evaluate the distributions of Trichogramma ostriniae and its native host, Ostrinia furnacalis, in southeastern Asia, and a non-native host, Ostrinia nubilalis, in a novel range, North America, using MAXENT and CLIMEX modelling approaches...
December 27, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29279578/characterization-and-application-of-lytic-bacteriophages-against-campylobacter-jejuni-isolated-from-poultry-in-japan
#17
Munenori Furuta, Takayuki Nasu, Kouichi Umeki, Duc Hoang Minh, Ken-Ichi Honjoh, Takahisa Miyamoto
 The aim was to isolate Campylobacter jejuni-specific lytic phages from meats on the market in Japan. These phages were effectively isolated from 13 of 15 (86.7%) retail chicken meat samples (skin and liver) by the enrichment method using Preston Campylobacter Selective Enrichment Broth and 10 host Campylobacter strains. Among the 26 phage isolates, 14 were extracted by means of C. jejuni L26 as a host strain. Phage PHC10 showed the broadest lytic spectrum: active against 67.4% of the 46 C. jejuni strains tested...
2017: Biocontrol Science
https://www.readbyqxmd.com/read/29279375/field-and-clinically-derived-estimates-of-wolbachia-mediated-blocking-of-dengue-virus-transmission-potential-in-aedes-aegypti-mosquitoes
#18
Lauren B Carrington, Bich Chau Nguyen Tran, Nhat Thanh Hoang Le, Tai Thi Hue Luong, Truong Thanh Nguyen, Phong Thanh Nguyen, Chau Van Vinh Nguyen, Huong Thi Cam Nguyen, Trung Tuan Vu, Long Thi Vo, Dui Thi Le, Nhu Tuyet Vu, Giang Thi Nguyen, Hung Quoc Luu, Anh Duc Dang, Timothy P Hurst, Scott L O'Neill, Vi Thuy Tran, Duong Thi Hue Kien, Nguyet Minh Nguyen, Marcel Wolbers, Bridget Wills, Cameron P Simmons
The wMel strain of Wolbachia can reduce the permissiveness of Aedes aegypti mosquitoes to disseminated arboviral infections. Here, we report that wMel-infected Ae. aegypti (Ho Chi Minh City background), when directly blood-fed on 141 viremic dengue patients, have lower dengue virus (DENV) transmission potential and have a longer extrinsic incubation period than their wild-type counterparts. The wMel-infected mosquitoes that are field-reared have even greater relative resistance to DENV infection when fed on patient-derived viremic blood meals...
December 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29258843/comparative-transcriptome-and-gene-co-expression-network-analysis-reveal-genes-and-signaling-pathways-adaptively-responsive-to-varied-adverse-stresses-in-the-insect-fungal-pathogen-beauveria-bassiana
#19
Zhangjiang He, Xin Zhao, Zhuoyue Lu, Huifang Wang, Pengfei Liu, Fanqin Zeng, Yongjun Zhang
Sensing, responding, and adapting to the surrounding environment are crucial for all living organisms to survive, proliferate, and differentiate in their biological niches. Beauveria bassiana is an economically important insect-pathogenic fungus which is widely used as a biocontrol agent to control a variety of insect pests. The fungal pathogen unavoidably encounters a variety of adverse environmental stresses and defense response from the host insects during application of the fungal agents. However, few are known about the transcription response of the fungus to respond or adapt varied adverse stresses...
December 16, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/29250446/a-laboratory-assessment-of-two-local-strains-of-the-beauveria-bassiana-bals-vuill-against-the-tetranychus-urticae-acari-tetranychidae-and-their-potential-as-a-mycopesticide
#20
Serkan Ortucu, Omer Faruk Algur
This study was conducted to assess highly pathogenic Beauveria bassiana isolates to be used in biocontrol and to determine their potentials as mycopesticide. For this purpose, two B. bassiana isolates, which were locally isolated from T. urticae, were chosen. Firstly, three suspensions were investigated at the degree of humidity of 65 ± 5% and 100% RH. Secondly, these strains were selected according to their tendency to mass production, tolerance to UV radiation, and capability of producing spore at the different temperatures...
2017: Journal of Pathogens
keyword
keyword
35357
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"