keyword
MENU ▼
Read by QxMD icon Read
search

pesticide resistance

keyword
https://www.readbyqxmd.com/read/28644414/benefits-facilitators-barriers-and-strategies-to-improve-pesticide-protective-behaviors-insights-from-farmworkers-in-north-carolina-tobacco-fields
#1
AnnMarie Lee Walton, Catherine E LePrevost, Laura Linnan, Ana Sanchez-Birkhead, Kathi Mooney
Pesticide exposure is associated with deleterious health effects. Prior studies suggest Latino farmworkers perceive little control over their occupational health. Using the Health Belief Model as a theoretical guide, we explored the perceptions of Latino farmworkers working in tobacco in North Carolina (n = 72) about benefits and facilitators of pesticide protective behaviors as well as barriers, and strategies to overcome barriers to their use. Interviews were conducted with participants at farmworker housing during non-work time...
June 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28644007/cyclotides-as-tools-in-chemical-biology
#2
Simon J de Veer, Joachim Weidmann, David J Craik
Among the various molecules that plants produce for defense against pests and pathogens, cyclotides stand out as exceptionally stable and structurally unique. These ribosomally synthesized peptides are around 30 amino acids in size, and are stabilized by a head-to-tail cyclic peptide backbone and three disulfide bonds that form a cystine knot. They occur in certain plants of the Rubiaceae, Violaceae, Cucurbitaceae, Fabaceae, and Solanaceae families, with an individual plant producing up to hundreds of different cyclotides...
June 23, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28643581/a-white-paper-on-global-wheat-health-based-on-scenario-development-and-analysis
#3
Serge Savary, Annika Djurle, Jonathan Yuen, Andrea Ficke, Vittorio Rossi, Paul Esker, Jose M Fernandes, Emerson Del Ponte, Jatindra Kumar, Laurence V Madden, Pierce A Paul, Neil McRoberts, Pawan Kumar Singh, Laurent Huber, Claude Pope de Vallavieille, Sébastien Saint-Jean, Laetitia Willocquet
Scenario analysis constitutes a useful approach to synthesize knowledge and derive hypotheses in the case of complex systems which are documented with mainly qualitative or very diverse information. In this article, a framework for scenario analysis is designed and then, applied to global wheat health within a timeframe from today to 2050. Scenario analysis entails the choice of settings, the definition of scenarios of change, and the analysis of outcomes of these scenarios in the chosen settings. Three idealized agrosystems, representing a large fraction of the global diversity of wheat-based agrosystems, are considered, which represent the settings of the analysis...
June 23, 2017: Phytopathology
https://www.readbyqxmd.com/read/28638374/azole-resistance-in-aspergillus-fumigatus-a-consequence-of-antifungal-use-in-agriculture
#4
REVIEW
Sarah Berger, Yassine El Chazli, Ambrin F Babu, Alix T Coste
Agricultural industry uses pesticides to optimize food production for the growing human population. A major issue for crops is fungal phytopathogens, which are treated mainly with azole fungicides. Azoles are also the main medical treatment in the management of Aspergillus diseases caused by ubiquitous fungi, such as Aspergillus fumigatus. However, epidemiological research demonstrated an increasing prevalence of azole-resistant strains in A. fumigatus. The main resistance mechanism is a combination of alterations in the gene cyp51A (TR34/L98H)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28631831/spatial-and-temporal-trends-and-flow-dynamics-of-glyphosate-and-other-pesticides-within-an-agricultural-watershed-in-argentina
#5
Débora J Pérez, Elena Okada, Eduardo De Gerónimo, Mirta L Menone, Virginia C Aparicio, José L Costa
In the present study, we evaluated the spatial and temporal trends of current use pesticides in surface water and sediments and to determine its relation with hydrological stream dynamics within the agricultural watershed of El Crespo stream. We sampled two contrasting sites: Site 1 (upstream) surrounded by agricultural lands, and Site 2 (downstream) surrounded by natural grasslands. Most of the applied pesticides (i.e. glyphosate, 2,4-D, atrazine, tebuconazole and imidacloprid) were detected in high frequencies in surface water samples at both sites...
June 20, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28629321/the-biocontrol-agent-pseudomonas-chlororaphis-pa23-primes-brassica-napus-defenses-through-distinct-gene-networks
#6
Kelly A Duke, Michael G Becker, Ian J Girard, Jenna L Millar, W G Dilantha Fernando, Mark F Belmonte, Teresa R de Kievit
BACKGROUND: The biological control agent Pseudomonas chlororaphis PA23 is capable of protecting Brassica napus (canola) from the necrotrophic fungus Sclerotinia sclerotiorum via direct antagonism. While we have elucidated bacterial genes and gene products responsible biocontrol, little is known about how the host plant responds to bacterial priming on the leaf surface, including global changes in gene activity in the presence and absence of S. sclerotiorum. RESULTS: Application of PA23 to the aerial surfaces of canola plants reduced the number of S...
June 19, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28626931/insecticide-resistance-and-intracellular-proteases
#7
REVIEW
Richard M Wilkins
Pesticide resistance is an example of evolution in action with mechanisms of resistance arising from mutations or increased expression of intrinsic genes. Intracellular proteases have a key role in maintaining healthy cells and in responding to stressors such as pesticides. Insecticide resistant insects have constitutively elevated intracellular protease activity when compared to corresponding susceptible strains. This increase was shown for some cases originally through biochemical enzyme studies and subsequently putatively by transcriptomics and proteomics methods...
June 19, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28618159/are-herbicides-a-once-in-a-century-method-of-weed-control
#8
REVIEW
Adam S Davis, George Frisvold
The efficacy of any pesticide is an exhaustible resource that can be depleted over time. For decades, the dominant paradigm - that weed mobility is low relative to insect pests and pathogens, that there is an ample stream of new weed control technologies in the commercial pipeline, and that technology suppliers have sufficient economic incentives and market power to delay resistance - supported a laissez faire approach to herbicide resistance management. Earlier market data bolstered the belief that private incentives and voluntary actions were sufficient to manage resistance...
June 15, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28613863/structural-characterization-of-a-eukaryotic-cyanase-from-tetranychus-urticae
#9
Caleb R Schlachter, Vincent Klapper, Nicky Wybouw, Taylor Radford, Thomas Van Leeuwen, Miodrag Grbic, Maksymilian Chruszcz
The two-spotted spider mite Tetranychus urticae is a polyphagous agricultural pest and poses a high risk to global crop production as it is rapidly developing pesticide resistance. Genomic and transcriptomic analysis has revealed the presence of a remarkable cyanase gene in T. urticae and related mite species within the Acariformes lineage. Cyanase catalyzes the detoxification of cyanate and is potentially an attractive protein target for the development of new acaricides. Phylogenetic analysis indicates that within the Acariformes, the cyanase gene originates from a single horizontal gene transfer event, preceding subsequent speciation...
June 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28606820/analysis-of-population-structure-and-insecticide-resistance-in-mosquitoes-of-the-genus-culex-anopheles-and-aedes-from-different-environments-of-greece-with-a-history-of-mosquito-borne-disease-transmission
#10
Max Fotakis, Alexandra Chaskopoulou, Linda Grigoraki, Alexandros Tsiamantas, Stella Kounadi, Loukas Georgiou, John Vontas
Greece has been recently affected by several mosquito borne diseases with the West Nile Virus (WNV) outbreak in 2010 being one of the largest reported in Europe. Currently at the epicenter of an economic and refugee crisis and visited by over 16 million tourists a year the integrated management of diseases transmitted by mosquitoes is a public health and economic priority. Vector control programs rely mainly on insecticides, however data on insecticide resistance and the mosquito fauna is essential for successful applications...
June 9, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28603692/nanotechnology-the-new-perspective-in-precision-agriculture
#11
REVIEW
Joginder Singh Duhan, Ravinder Kumar, Naresh Kumar, Pawan Kaur, Kiran Nehra, Surekha Duhan
Nanotechnology is an interdisciplinary research field. In recent past efforts have been made to improve agricultural yield through exhaustive research in nanotechnology. The green revolution resulted in blind usage of pesticides and chemical fertilizers which caused loss of soil biodiversity and developed resistance against pathogens and pests as well. Nanoparticle-mediated material delivery to plants and advanced biosensors for precision farming are possible only by nanoparticles or nanochips. Nanoencapsulated conventional fertilizers, pesticides and herbicides helps in slow and sustained release of nutrients and agrochemicals resulting in precise dosage to the plants...
September 2017: Biotechnology Reports
https://www.readbyqxmd.com/read/28601791/effect-of-operational-and-water-quality-parameters-on-conventional-ozonation-and-the-advanced-oxidation-process-o3-h2o2-kinetics-of-micropollutant-abatement-transformation-product-and-bromate-formation-in-a-surface-water
#12
Marc Bourgin, Ewa Borowska, Jakob Helbing, Juliane Hollender, Hans-Peter Kaiser, Cornelia Kienle, Christa S McArdell, Eszter Simon, Urs von Gunten
The efficiency of ozone-based processes under various conditions was studied for the treatment of a surface water (Lake Zürich water, Switzerland) spiked with 19 micropollutants (pharmaceuticals, pesticides, industrial chemical, X-ray contrast medium, sweetener) each at 1 μg L(-1). Two pilot-scale ozonation reactors (4-5 m(3) h(-1)), a 4-chamber reactor and a tubular reactor, were investigated by either conventional ozonation and/or the advanced oxidation process (AOP) O3/H2O2. The effects of selected operational parameters, such as ozone dose (0...
May 11, 2017: Water Research
https://www.readbyqxmd.com/read/28595927/application-of-fatty-acids-as-antiviral-agents-against-tobacco-mosaic-virus
#13
Lei Zhao, Yujia Chen, Kuan Wu, He Yan, Xingan Hao, Yunfeng Wu
Numerous studies reported fatty acids (FAs) affecting basal resistance to bacterial and fungal pathogens in plants, but limited reports focused on antiviral agents. In this study, oleic acid was separated from cottonseed oil sludge by antiviral bioassay-guided methods. Antiviral activity of FAs was compared with that of Ningnanmycin. Subsequently, effects of FAs on defense-related enzymes (PAL, POD) and defense-related genes (PR-1a, PR-5) were studied. FAs presented moderate antiviral activity, which is close to that of Ningnanmycin, and activities of PAL and POD were higher in oleic-acid-treated tobacco leaves than those inoculated with tobacco mosaic virus (TMV) and water-treated tobacco...
June 2017: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/28584447/analysis-of-eawag-bbd-pathway-prediction-system-for-the-identification-of-malathion-degrading-microbes
#14
Subramaniam Sivakumar, Palanivel Anitha, Balsubramanian Ramesh, Gopal Suresh
Insecticides are the toxic substances that are used to kill insects. The use of insecticides is believed to be one of the major factors behind the increase in agricultural productivity in the 20th century. The organophosphates are now the largest and most versatile class of insecticide used and Malathion is the predominant type utilized. The accumulation of Malathion in environment is the biggest threat to the environment because of its toxicity. Malathion is lethal to beneficial insects, snails, micro crustaceans, fish, birds, amphibians, and soil microorganisms...
2017: Bioinformation
https://www.readbyqxmd.com/read/28577491/bluetongue-outbreaks-looking-for-effective-control-strategies-against-culicoides-vectors
#15
REVIEW
Giovanni Benelli, Luca Buttazzoni, Angelo Canale, Armando D'Andrea, Paola Del Serrone, Gavino Delrio, Cipriano Foxi, Susanna Mariani, Giovanni Savini, Chithravel Vadivalagan, Kadarkarai Murugan, Chiara Toniolo, Marcello Nicoletti, Mauro Serafini
Several arthropod-borne diseases are now rising with increasing impact and risks for public health, due to environmental changes and resistance to pesticides currently marketed. In addition to community surveillance programs and a careful management of herds, a next-generation of effective products is urgently needed to control the spread of these diseases, with special reference to arboviral ones. Natural product research can afford alternative solutions. Recently, a re-emerging of bluetongue disease is ongoing in Italy...
May 20, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28572811/direct-and-pollinator-mediated-effects-of-herbivory-on-strawberry-and-the-potential-for-improved-resistance
#16
Anne Muola, Daniela Weber, Lisa E Malm, Paul A Egan, Robert Glinwood, Amy L Parachnowitsch, Johan A Stenberg
The global decline in pollinators has partly been blamed on pesticides, leading some to propose pesticide-free farming as an option to improve pollination. However, herbivores are likely to be more prevalent in pesticide-free environments, requiring knowledge of their effects on pollinators, and alternative crop protection strategies to mitigate any potential pollination reduction. Strawberry leaf beetles (SLB) Galerucella spp. are important strawberry pests in Northern Europe and Russia. Given that SLB attack both leaf and flower tissue, we hypothesized pollinators would discriminate against SLB-damaged strawberry plants (Fragaria vesca, cultivar 'Rügen'), leading to lower pollination success and yield...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28570707/de-novo-characterization-of-the-pine-aphid-cinara-pinitabulaeformis-zhang-et-zhang-transcriptome-and-analysis-of-genes-relevant-to-pesticides
#17
Songqing Wu, Zhicheng Huang, Carballar-Lejarazú Rebeca, Xiaoli Zhu, Yajie Guo, Qiannan Lin, Xia Hu, Rong Wang, Guanghong Liang, Xiong Guan, Feiping Zhang
The pine aphid Cinara pinitabulaeformis Zhang et Zhang is the main pine pest in China, it causes pine needles to produce dense dew (honeydew) which can lead to sooty mold (black filamentous saprophytic ascomycetes). Although common chemical and physical strategies are used to prevent the disease caused by C. pinitabulaeformis Zhang et Zhang, new strategies based on biological and/or genetic approaches are promising to control and eradicate the disease. However, there is no information about genomics, proteomics or transcriptomics to allow the design of new control strategies for this pine aphid...
2017: PloS One
https://www.readbyqxmd.com/read/28566216/molecular-quantitative-assay-for-esterase-mediated-organophosphate-resistance-in-rhipicephalus-microplus
#18
Luciana Gatto Brito, Loui de Oliveira Nery, Fabio da Silva Barbieri, Maribel E Funes Huacca, Soraya Dos Santos Pereira, Renata Reis da Silva, Carla Celedônio de Freitas Fernanades, Márcia Cristina de Sena Oliveira
The use of pesticides is the main tool to control infestations of the cattle tick Rhipicephalus microplus, and organophosphate (OP) is one of the most used compounds for this purpose. Carboxylesterases (ChEs) are targets for OP pesticides in arthropods, and acetylcholinesterase 2 (AChE2) and esterase 1 (EST1) are metabolic enzymes involved in the xenobiotic detoxification process. The increase in the synthesis of these enzymes can be detected by the quantitative polymerase chain reaction (qPCR) assay, which was used to identify cattle tick populations resistant to OP pesticides...
May 19, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28558907/cold-induced-aqueous-acetonitrile-phase-separation-a-salt-free-way-to-begin-quick-easy-cheap-effective-rugged-safe
#19
Gang Shao, Jeffrey Agar, Roger W Giese
Cooling a 1:1 (v/v) solution of acetonitrile and water at -16° C is known to result in two clear phases. We will refer to this event as "cold-induced aqueous acetonitrile phase separation (CIPS)". On a molar basis, acetonitrile is 71.7% and 13.6% in the upper and lower phases, respectively, in our study. The phase separation proceeds as a descending cloud of microdroplets. At the convenient temperature (typical freezer) employed here the lower phase is rather resistant to solidification, although it emerges from the freezer as a solid if various insoluble matter is present at the outset...
July 14, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28537748/pesticide-interactions-mechanisms-benefits-and-risks
#20
John E Casida
Interactions between pesticides at common molecular targets and detoxification systems often determine their effectiveness and safety. Compounds with the same mode of action or target are candidates for cross resistance and restrictions in their recommended uses. Discovery research is therefore focused on new mechanisms and modes of action. Interactions in detoxification systems also provide cross resistance and synergist and safener mechanisms illustrated with serine hydrolases and inhibitors, cytochrome P450 and insecticide synergists, and glutathione S-transferases and herbicide safeners...
June 1, 2017: Journal of Agricultural and Food Chemistry
keyword
keyword
67773
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"