keyword
MENU ▼
Read by QxMD icon Read
search

pesticide resistance

keyword
https://www.readbyqxmd.com/read/28213477/soft-selective-sweeps-in-evolutionary-rescue
#1
Benjamin A Wilson, Pleuni S Pennings, Dmitri A Petrov
Evolutionary rescue occurs when a population that is declining in size because of an environmental change is rescued from extinction by genetic adaptation. Evolutionary rescue is an important phenomenon at the intersection of ecology and population genetics, and the study of evolutionary rescue is critical to understanding processes ranging from species conservation to the evolution of drug and pesticide resistance. While most population genetic models of evolutionary rescue focus on estimating the probability of rescue, we focus on whether one or more adaptive lineages contribute to evolutionary rescue...
February 17, 2017: Genetics
https://www.readbyqxmd.com/read/28210981/assessing-common-bean-cultivars-for-resistance-to-the-soybean-looper-chrysodeixis-includens-lepidoptera-noctuidae
#2
R Morando, E L L Baldin, P L Cruz, A L Lourenção
The soybean looper Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) is known as an important pest of leguminous plants worldwide. In Brazil, this pest species is gaining importance to producers of the common bean Phaseolus vulgaris L. (Fabaceae) because it limits field production of the crop. Chemical control is still the primary method of insect control. However, due to the possible harmful effects of pesticides to humans and the environment, alternative and less aggressive practices are being investigated...
February 16, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28195667/rna-interference-of-carboxyesterases-causes-nymph-mortality-in-the-asian-citrus-psyllid-diaphorina-citri
#3
Abdelaziz Kishk, Helmy A I Anber, Tsamoh K AbdEl-Raof, AbdEl-Hakeem D El-Sherbeni, Sobhy Hamed, Siddarame Gowda, Nabil Killiny
Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), is an important pest of citrus. In addition, D. citri is the vector of Huanglongbing, a destructive disease in citrus, also known as citrus greening disease caused by Candidatus Liberibacter asiaticus. Huanglongbing causes huge losses for citrus industries. Insecticide application for D. citri is the major strategy to prevent disease spread. The heavy use of insecticides causes development of insecticide resistance. We used RNA interference (RNAi) to silence genes implicated in pesticide resistance in order to increase the susceptibility...
February 13, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28194561/xanthine-alkaloids-occurrence-biosynthesis-and-function-in-plants
#4
Hiroshi Ashihara, Kouichi Mizuno, Takao Yokota, Alan Crozier
Caffeine is a xanthine alkaloid found in non-alcoholic beverages such as tea, coffee, and cocoa. It was discovered in tea and coffee in the 1820s, but it was not until 2000 that details of molecular events associated with caffeine biosynthesis began to be unraveled. Reviewed are the occurrence of xanthine alkaloids in the plant kingdom and the elucidation of the caffeine biosynthesis pathway, providing details of the N-methyltransferases, belonging to the motif B' methyltransferase family, which catalyze three steps in the four-step pathway leading from xanthosine to caffeine...
2017: Progress in the Chemistry of Organic Natural Products
https://www.readbyqxmd.com/read/28192223/emergence-of-multi-drug-resistance-among-soil-bacteria-exposing-to-insecticides
#5
Kirubakaran Rangasamy, Murugan Athiappan, Natarajan Devarajan, Javid A Parray
Impacts of pesticide exposure on the soil microbial flora and cross resistance to antibiotics have not been well documented. Development of antibiotic resistance is a common issue among soil bacteria which are exposing to pesticides continuously at sub-lethal concentration. The present study was focused to evaluate the correlation between pesticide exposures and evolution of multi drug resistance among isolates collected from soil applied with insecticides. Twenty five insecticide (Monochrotophos) degrading bacteria were isolated from contaminated agricultural soil...
February 9, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28187834/pyrethroid-resistance-in-iranian-field-populations-of-rhipicephalus-boophilus-annulatus
#6
Seyyed Payman Ziapour, Sadegh Kheiri, Mahmoud Fazeli-Dinan, Farzaneh Sahraei-Rostami, Reza Ali Mohammadpour, Mohsen Aarabi, Seyed Hassan Nikookar, Mohammad Sarafrazi, Fatemeh Asgarian, Ahmadali Enayati, Janet Hemingway
Resistance to acaricides in ticks is becoming increasingly widespread throughout the world; therefore, tick control requires resistance monitoring for each tick species. The aims of this study were to monitor the susceptibility status of the cattle tick, Rhipicephalus (Boophilus) annulatus (Acari: Ixodidae), against pyrethroid acaricides from Mazandaran Province, northern Iran, and where resistance was evident, and establish the possible underlying mechanisms. Fully engorged adult R. (B.) annulatus females collected on cattle from Mazandaran Province...
March 2017: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/28181532/a-floral-fragrance-methyl-benzoate-is-an-efficient-green-pesticide
#7
Yan Feng, Aijun Zhang
Over-reliance on synthetic pesticides in insect pest control has caused widespread public and scientific concerns for human health and the environment, especially since many insect pests have already developed resistances to conventional pesticides and Bt products. For this reason, there is a considerable interest in development of alternative control methods for insect pest management. Based on laboratory studies, we report that methyl benzoate (MB), a naturally-occurring compound in many plants, may possess toxicity against various stages of a variety of insect pests, including the brown marmorated stinkbug, Halyomorpha halys, diamondback moth, Plutella xylostella, and tobacco hornworm, Manduca sexta, as well as the spotted wing drosophila, Drosophila suzukii...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28168834/pyrethroid-and-ddt-tolerance-of-anopheles-gambiae-s-l-from-sengerema-district-an-area-of-intensive-pesticide-usage-in-northwestern-tanzania
#8
Anita Philbert, Sylvester Leonard Lyantagaye, Gabriele Pradel, Che Julius Ngwa, Gamba Nkwengulila
OBJECTIVE: To assess the susceptibility status of malaria vectors to pyrethroids and dichlorodiphenyltrichloroethane (DDT), characterize the mechanisms underlying resistance, and to evaluate the role of agro-chemical use in resistance selection among malaria vectors in Sengerema agro ecosystem zone, Tanzania. METHODS: Mosquito larvae were collected from farms and reared to obtain adults. The susceptibility status of An. gambiae s.l. was assessed using WHO bioassay tests to permethrin, deltamethrin, lambdacyhalothrin, etofenprox, cyfluthrin, and DDT...
February 7, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28166292/fall-armyworm-migration-across-the-lesser-antilles-and-the-potential-for-genetic-exchanges-between-north-and-south-american-populations
#9
Rodney N Nagoshi, Shelby Fleischer, Robert L Meagher, Mirian Hay-Roe, Ayub Khan, M Gabriela Murúa, Pierre Silvie, Clorinda Vergara, John Westbrook
The fall armyworm, Spodoptera frugiperda (J. E. Smith)(Lepidoptera: Noctuidae), is an important agricultural pest of the Western Hemisphere noted for its broad host range, long distance flight capabilities, and a propensity to develop resistance to pesticides that includes a subset of those used in genetically modified corn varieties. These characteristics exacerbate the threat fall armyworm poses to agriculture, with the potential that a resistance trait arising in one geographical location could rapidly disseminate throughout the hemisphere...
2017: PloS One
https://www.readbyqxmd.com/read/28163993/herbicide-resistance-and-biodiversity-agronomic-and-environmental-aspects-of-genetically-modified-herbicide-resistant-plants
#10
REVIEW
Gesine Schütte, Michael Eckerstorfer, Valentina Rastelli, Wolfram Reichenbecher, Sara Restrepo-Vassalli, Marja Ruohonen-Lehto, Anne-Gabrielle Wuest Saucy, Martha Mertens
Farmland biodiversity is an important characteristic when assessing sustainability of agricultural practices and is of major international concern. Scientific data indicate that agricultural intensification and pesticide use are among the main drivers of biodiversity loss. The analysed data and experiences do not support statements that herbicide-resistant crops provide consistently better yields than conventional crops or reduce herbicide amounts. They rather show that the adoption of herbicide-resistant crops impacts agronomy, agricultural practice, and weed management and contributes to biodiversity loss in several ways: (i) many studies show that glyphosate-based herbicides, which were commonly regarded as less harmful, are toxic to a range of aquatic organisms and adversely affect the soil and intestinal microflora and plant disease resistance; the increased use of 2,4-D or dicamba, linked to new herbicide-resistant crops, causes special concerns...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28161865/biophysical-characterization-of-acacia-caesia-fabricated-silver-nanoparticles-effectiveness-on-mosquito-vectors-of-public-health-relevance-and-impact-on-non-target-aquatic-biocontrol-agents
#11
Giovanni Benelli, Shine Kadaikunnan, Naiyf S Alharbi, Marimuthu Govindarajan
Mosquito-borne diseases lead to serious public health concerns in tropical and sub-tropical countries worldwide, due to development of mosquito resistance to synthetic pesticides, non-target effects of pesticides, and socioeconomic reasons. Currently, green nanotechnology is a promising research field, showing a wide range of potential applications in vector control programs. The employ of natural products as reducing agents to fabricate insecticidal nanocomposites is gaining research attention worldwide, due to low costs and high effectiveness...
February 5, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28161469/proteomic-and-metabolomic-analysis-reveals-rapid-and-extensive-nicotine-detoxification-ability-in-honey-bee-larvae
#12
Esther E du Rand, Hannelie Human, Salome Smit, Mervyn Beukes, Zeno Apostolides, Susan W Nicolson, Christian W W Pirk
Despite potential links between pesticides and bee declines, toxicology information on honey bee larvae (Apis mellifera) is scarce and detoxification mechanisms in this development stage are virtually unknown. Larvae are exposed to natural and synthetic toxins present in pollen and nectar through consumption of brood food. Due to the characteristic intensive brood care displayed by honey bees, which includes progressive feeding throughout larval development, it is generally assumed that larvae rely on adults to detoxify for them and exhibit a diminished detoxification ability...
February 1, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28152405/evaluation-of-larvicidal-activity-and-ecotoxicity-of-linalool-methyl-cinnamate-and-methyl-cinnamate-linalool-in-combination-against-aedes-aegypti
#13
Gislene M Fujiwara, Vinícius Annies, Camila F de Oliveira, Ricardo A Lara, Maria M Gabriel, Fernando C M Betim, Jéssica M Nadal, Paulo V Farago, Josiane F G Dias, Obdulio G Miguel, Marilis D Miguel, Francisco A Marques, Sandra M W Zanin
The frequent use of synthetic pesticides to control Aedes aegypti population can lead to environmental and/or human contamination and the emergence of resistant insects. Linalool and methyl cinnamate are presented as an alternative to the synthetic pesticides, since they can exhibit larvicidal, repellent and/or insecticidal activity and are considered safe for use. The aim of this study was to evaluate the larvicidal activity of methyl cinnamate, linalool and methyl cinnamate/linalool in combination (MC-L) (1:4 ratio, respectively) against Aedes aegypti...
January 30, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28141966/past-present-and-future-of-integrated-control-of-apple-pests-the-new-zealand-experience
#14
James T S Walker, David Maxwell Suckling, C Howard Wearing
This review describes the New Zealand apple industry's progression from 1960s integrated pest control research to today's comprehensive integrated pest management system. With the exception of integrated mite control implemented during the 1980s, pest control on apple crops was dominated by intensive organophosphate insecticide regimes to control tortricid leafrollers. Multiple pest resistances to these insecticides by the 1990s, and increasing consumer demand for lower pesticide residues on fruit, led to the implementation of integrated fruit production...
January 31, 2017: Annual Review of Entomology
https://www.readbyqxmd.com/read/28135664/reductive-dechlorination-of-hexachlorobenzene-subjected-to-several-conditions-in-a-bioelectrochemical-system
#15
Hui Wang, Shuyu Yi, Xian Cao, Zhou Fang, Xianning Li
A microbial fuel cell (MFC) is a very promising way to remove organic pollutants. Hexachlorobenzene (HCB) is a widely used agricultural pesticide. In this study, single-chamber and membrane-less soil MFCs were constructed. The HCB was degraded to pentachlorobenzene (PeCB), tetrachlorobenzene (TeCB), and trichlorobenzene (TCB) in sequence by a reductive dechlorination process in soil MFCs. The influences of the external resistance, concentration of phosphate buffer, and electrode spacing in soil MFCs on the degradation rate and removal efficiency of HCB were analyzed...
January 27, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28117022/acetylcholinesterase-a-primary-target-for-drugs-and-insecticides
#16
Sunita Thapa, Min Lv, Hui Xu
Acetylcholinesterase is a serine hydrolase that terminates the action of the neurotransmitter acetylcholine by hydrolyzing it into acetic acid and choline. The molecule, having an ellipsoidal structure, possesses three binding sites; active site (with catalytic anionic and esteratic subsites), aromatic gorge and peripheral anionic site, where the inhibiting compounds interact. The acetylcholinesterase inhibitors bind to the molecule and interfere with the breakdown of acetylcholine leading to the deposition of acetylcholine in the nerve synapses and causing disrupted neurotransmission...
January 20, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28110082/acute-larvicidal-toxicity-of-five-essential-oils-pinus-nigra-hyssopus-officinalis-satureja-montana-aloysia-citrodora-and-pelargonium-graveolens-against-the-filariasis-vector-culex-quinquefasciatus-synergistic-and-antagonistic-effects
#17
Giovanni Benelli, Roman Pavela, Angelo Canale, Kevin Cianfaglione, Giampiero Ciaschetti, Fabio Conti, Marcello Nicoletti, Sengottayan Senthil-Nathan, Heinz Mehlhorn, Filippo Maggi
Mosquito vector control is facing a number of important and timely challenges, mainly due to the rapid development of pesticide resistance and environmental concerns. In this scenario, screening of botanical resources for their mosquitocidal activity may offer effective and eco-friendly tools against Culicidae vectors. Culex quinquefasciatus Say (Diptera: Culicidae) is a vector of lymphatic filariasis and of dangerous arboviral diseases, such as West Nile and St. Louis encephalitis. In this study, the chemical composition of five essential oils obtained from different plants, namely Pinus nigra J...
April 2017: Parasitology International
https://www.readbyqxmd.com/read/28099443/inhibition-of-human-drug-transporter-activities-by-the-pyrethroid-pesticides-allethrin-and-tetramethrin
#18
Lisa Chedik, Arnaud Bruyere, Marc Le Vee, Bruno Stieger, Claire Denizot, Yannick Parmentier, Sophie Potin, Olivier Fardel
Pyrethroids are widely-used chemical insecticides, to which humans are commonly exposed, and known to alter functional expression of drug metabolizing enzymes. Limited data have additionally suggested that drug transporters, that constitute key-actors of the drug detoxification system, may also be targeted by pyrethroids. The present study was therefore designed to analyze the potential regulatory effects of these pesticides towards activities of main ATP-binding cassette (ABC) and solute carrier (SLC) drug transporters, using transporter-overexpressing cells...
2017: PloS One
https://www.readbyqxmd.com/read/28080995/rapid-emergence-of-pathogens-in-agro-ecosystems-global-threats-to-agricultural-sustainability-and-food-security
#19
REVIEW
Bruce A McDonald, Eva H Stukenbrock
Agricultural ecosystems are composed of genetically depauperate populations of crop plants grown at a high density and over large spatial scales, with the regional composition of crop species changing little from year to year. These environments are highly conducive for the emergence and dissemination of pathogens. The uniform host populations facilitate the specialization of pathogens to particular crop cultivars and allow the build-up of large population sizes. Population genetic and genomic studies have shed light on the evolutionary mechanisms underlying speciation processes, adaptive evolution and long-distance dispersal of highly damaging pathogens in agro-ecosystems...
December 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28073381/immediate-and-lag-effects-of-pesticide-exposure-on-parasite-resistance-in-larval-amphibians
#20
Katherine M Pochini, Jason T Hoverman
Across host-parasite systems, there is evidence that pesticide exposure increases parasite loads and mortality following infection. However, whether these effects are driven by reductions in host resistance to infection or slower rates of parasite clearance is often unclear. Using controlled laboratory experiments, we examined the ability of larval northern leopard frogs (Lithobates pipiens) and American toads (Anaxyrus americanus) to resist and clear trematode (Echinoparyphium sp.) infections following exposure to the insecticide carbaryl...
January 11, 2017: Parasitology
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"