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Aphis gossypii --- Homoptera --- Aphididae --- Seed pelleting --- Gossypium --- Insect control
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Aphis gossypii --- biological development --- population dynamics --- Integrated control --- Central Africa --- Central Africa
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Potato Y potyvirus --- Potato Y potyvirus --- Potato leaf roll luteovirus --- Potato leaf roll luteovirus --- Aphididae --- Aphididae --- Viroses --- Viroses --- Potatoes --- Potatoes --- Climatic change --- Climatic change --- Disease transmission --- Disease transmission --- Myzus persicae --- Myzus persicae --- Aphis gossypii --- Aphis gossypii --- Temperature. --- Temperature
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Gossypium --- Gossypium --- Varieties --- Varieties --- Pest insects --- Pest insects --- Bemisia tabaci --- Bemisia tabaci --- Polyphagotarsonemus latus --- Polyphagotarsonemus latus --- Spodoptera --- Spodoptera --- Insect control --- Insect control --- Integrated control --- Integrated control --- Tetranychus --- Tetranychus --- Dysdercus cingulatus --- Dysdercus cingulatus --- Apanteles --- Apanteles --- Helicoverpa armigera --- Helicoverpa armigera --- Pectinophora gossypiella --- Pectinophora gossypiella --- Amrasca biguttula --- Amrasca biguttula --- Thrips palmi --- Thrips palmi --- Aphis gossypii --- Aphis gossypii --- Anomis flava --- Syllepte derogata --- Thailand --- Thailand --- Anomis flava --- Syllepte derogata
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Pieris (pieridae) --- Pieris (pieridae) --- Leptinotarsa --- Leptinotarsa --- Myzus persicae --- Myzus persicae --- Aphidoidea --- Aphidoidea --- Spodoptera --- Spodoptera --- Pest insects --- Pest insects --- Terpenoids --- Terpenoids --- Alkaloids --- Alkaloids --- Antifeedants --- Antifeedants --- Feeding habits --- Feeding habits --- Host parasite relations --- Host parasite relations --- Biological control --- Biological control --- Pieris brassicae --- Pieris brassicae --- Leptinotarsa decemlineata --- Leptinotarsa decemlineata --- Aphis gossypii --- Aphis gossypii --- Spodoptera littoralis --- Spodoptera littoralis
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In California, melon crops are strongly impacted by whiteflies and aphids-transmitted viruses. Despite attempts to control their vectors populations, the disease pressure is still high and melon production is impacted. As California is the main production area for melons in the United States, it is an important economic issue. A synthetic elicitor could help to improve natural plant defenses against these pathogens. It was shown that the molecule Acibenzolar-S-Methyl (ASM) is able to induce the systemic acquired resistance (SAR) on plants. In this master thesis, the effects of ASM are analyzed on melon resistance to two viruses: the Cucurbit yellow stunting disorder virus (CYSDV) and the Cucumber mosaic virus (CMV). The ASM effects will be also analyzed to evaluate its ability to disrupt the feeding behavior of a CMV vector: Aphis gossypii, and its effects on the aphid feeding preferences. The results of CYSDV-inoculated plants cannot be presented as the ASM rate applied was wrong and caused strong plant weight reduction. Thereafter, the optimal ASM rate was evaluated to be between 0.5 and 2.5 mg ASM sprayed per plant. Half of the CMV-infected plants sprayed with 0.5 mg of ASM per plant displayed no symptoms at two weeks post inoculation, with a virus titer on ELISA twice lower compared to plants with symptoms. To evaluate the impact of ASM on feeding behavior of aphids, the electrical penetration graph (EPG) was used in another experiment. At 1.5 mg/plant, the aphids spent less time inside to ingest phloem sap and more time inside the intercellular pathway. A choice test was also performed between four leaves, under the ASM treatment or not, and CMV infected or healthy leaves. Almost no reliable results were obtained because of technical problems, but there is a trend for a preference for CMV-infected leaves without ASM after 30 minutes. We can conclude that ASM acts efficiently against CMV infection, but studies to find an optimal ASM rate and on virus transmission must also be conducted.
Acibenzolar-S-methyl --- Cucumber mosaic virus --- Cucurbit yellow stunting disorder virus --- Bemisia tabaci --- Aphis gossypii --- choice test --- ELISA --- electrical penetration graph --- melon --- ASM --- elicitor --- Sciences du vivant > Entomologie & lutte antiravageur
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This compilation of articles elaborates on plant virus diseases that are among the most recent epidemiological concerns. The chapters explore several paradigms in plant virus epidemiology, outbreaks, epidemics, and pandemics paralleling zoonotic viruses and that can be consequential to global food security. There is evidence that the local, regional, national, and global trade of agricultural products has aided the global dispersal of plant virus diseases. Expanding farmlands into pristine natural areas has created opportunities for viruses in native landscapes to invade crops, while the movement of food and food products disseminates viruses, creating epidemics or pandemics. Moreover, plant virus outbreaks not only directly impact food supply, but also incidentally affect human health.
Research & information: general --- sugar beet --- rhizomania --- RNAseq --- virus --- necrovirus --- helper virus --- Aphis gossypii --- Cucumis melo --- cucurbit viruses --- disease progress curve --- insect trapping --- logistic model --- Spearman correlation --- temporal dynamics --- Bunyavirale --- RNA virus --- emerging virus --- virus evolution --- plant virus --- cophylogeny --- hallmark genes --- common bean --- Phaseolus vulgaris --- cytorhabdovirus --- whitefly --- Bemisia tabaci --- vector --- virus transmission --- ToTV --- emerging disease --- prevalence --- whole-genome sequencing --- phylogeny --- tomato torrado virus --- sGFP --- plant pathology --- infectious clone --- plant-virus interaction --- pandemics --- epidemics --- global --- disease --- threat --- food insecurity --- crop losses --- crop failure --- indigenous viruses --- introduced crops --- new encounter --- spillover --- developing countries --- domestication centers --- sub-Saharan Africa --- Potyviruses --- whole genome sequencing --- epidemiology --- virus resistance --- virus host interactions --- plant viruses --- viral vectors --- plant diseases --- virus spread --- biopharming --- vaccines --- viruses --- Nicotiana benthamiana --- COVID-19 --- plant-based biologics production --- sugar beet --- rhizomania --- RNAseq --- virus --- necrovirus --- helper virus --- Aphis gossypii --- Cucumis melo --- cucurbit viruses --- disease progress curve --- insect trapping --- logistic model --- Spearman correlation --- temporal dynamics --- Bunyavirale --- RNA virus --- emerging virus --- virus evolution --- plant virus --- cophylogeny --- hallmark genes --- common bean --- Phaseolus vulgaris --- cytorhabdovirus --- whitefly --- Bemisia tabaci --- vector --- virus transmission --- ToTV --- emerging disease --- prevalence --- whole-genome sequencing --- phylogeny --- tomato torrado virus --- sGFP --- plant pathology --- infectious clone --- plant-virus interaction --- pandemics --- epidemics --- global --- disease --- threat --- food insecurity --- crop losses --- crop failure --- indigenous viruses --- introduced crops --- new encounter --- spillover --- developing countries --- domestication centers --- sub-Saharan Africa --- Potyviruses --- whole genome sequencing --- epidemiology --- virus resistance --- virus host interactions --- plant viruses --- viral vectors --- plant diseases --- virus spread --- biopharming --- vaccines --- viruses --- Nicotiana benthamiana --- COVID-19 --- plant-based biologics production
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This compilation of articles elaborates on plant virus diseases that are among the most recent epidemiological concerns. The chapters explore several paradigms in plant virus epidemiology, outbreaks, epidemics, and pandemics paralleling zoonotic viruses and that can be consequential to global food security. There is evidence that the local, regional, national, and global trade of agricultural products has aided the global dispersal of plant virus diseases. Expanding farmlands into pristine natural areas has created opportunities for viruses in native landscapes to invade crops, while the movement of food and food products disseminates viruses, creating epidemics or pandemics. Moreover, plant virus outbreaks not only directly impact food supply, but also incidentally affect human health.
Research & information: general --- sugar beet --- rhizomania --- RNAseq --- virus --- necrovirus --- helper virus --- Aphis gossypii --- Cucumis melo --- cucurbit viruses --- disease progress curve --- insect trapping --- logistic model --- Spearman correlation --- temporal dynamics --- Bunyavirale --- RNA virus --- emerging virus --- virus evolution --- plant virus --- cophylogeny --- hallmark genes --- common bean --- Phaseolus vulgaris --- cytorhabdovirus --- whitefly --- Bemisia tabaci --- vector --- virus transmission --- ToTV --- emerging disease --- prevalence --- whole-genome sequencing --- phylogeny --- tomato torrado virus --- sGFP --- plant pathology --- infectious clone --- plant-virus interaction --- pandemics --- epidemics --- global --- disease --- threat --- food insecurity --- crop losses --- crop failure --- indigenous viruses --- introduced crops --- new encounter --- spillover --- developing countries --- domestication centers --- sub–Saharan Africa --- Potyviruses --- whole genome sequencing --- epidemiology --- virus resistance --- virus host interactions --- plant viruses --- viral vectors --- plant diseases --- virus spread --- biopharming --- vaccines --- viruses --- Nicotiana benthamiana --- COVID-19 --- plant-based biologics production --- n/a --- sub-Saharan Africa
Choose an application
This compilation of articles elaborates on plant virus diseases that are among the most recent epidemiological concerns. The chapters explore several paradigms in plant virus epidemiology, outbreaks, epidemics, and pandemics paralleling zoonotic viruses and that can be consequential to global food security. There is evidence that the local, regional, national, and global trade of agricultural products has aided the global dispersal of plant virus diseases. Expanding farmlands into pristine natural areas has created opportunities for viruses in native landscapes to invade crops, while the movement of food and food products disseminates viruses, creating epidemics or pandemics. Moreover, plant virus outbreaks not only directly impact food supply, but also incidentally affect human health.
sugar beet --- rhizomania --- RNAseq --- virus --- necrovirus --- helper virus --- Aphis gossypii --- Cucumis melo --- cucurbit viruses --- disease progress curve --- insect trapping --- logistic model --- Spearman correlation --- temporal dynamics --- Bunyavirale --- RNA virus --- emerging virus --- virus evolution --- plant virus --- cophylogeny --- hallmark genes --- common bean --- Phaseolus vulgaris --- cytorhabdovirus --- whitefly --- Bemisia tabaci --- vector --- virus transmission --- ToTV --- emerging disease --- prevalence --- whole-genome sequencing --- phylogeny --- tomato torrado virus --- sGFP --- plant pathology --- infectious clone --- plant-virus interaction --- pandemics --- epidemics --- global --- disease --- threat --- food insecurity --- crop losses --- crop failure --- indigenous viruses --- introduced crops --- new encounter --- spillover --- developing countries --- domestication centers --- sub–Saharan Africa --- Potyviruses --- whole genome sequencing --- epidemiology --- virus resistance --- virus host interactions --- plant viruses --- viral vectors --- plant diseases --- virus spread --- biopharming --- vaccines --- viruses --- Nicotiana benthamiana --- COVID-19 --- plant-based biologics production --- n/a --- sub-Saharan Africa
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