- Plant Virus Research Studies
- Plant Pathogenic Bacteria Studies
- Plant and Fungal Interactions Research
- Insect-Plant Interactions and Control
- Agricultural pest management studies
- Plant-Microbe Interactions and Immunity
- Insect Pest Control Strategies
- Agricultural Practices and Plant Genetics
- Plant Disease Resistance and Genetics
- Animal Virus Infections Studies
- Viral gastroenteritis research and epidemiology
- Plant Parasitism and Resistance
- Plant tissue culture and regeneration
- Virus-based gene therapy research
- CRISPR and Genetic Engineering
- Legume Nitrogen Fixing Symbiosis
- Cocoa and Sweet Potato Agronomy
- Plant Disease Management Techniques
- Insect and Pesticide Research
- Agricultural Development and Management
- Insect symbiosis and bacterial influences
Agricultural Research Service
2016-2024
United States Department of Agriculture
2016-2024
University of Nebraska–Lincoln
2024
Cornell University
2001-2022
Plant (United States)
2016-2021
University of Idaho
2014-2017
Robert W. Holley Center for Agriculture & Health
2016
Abstract P otato virus Y ( PVY ) strains are transmitted by different aphid species in a non‐persistent, non‐circulative manner. Green peach GPA ), M yzus persicae S ulzer, is the most efficient vector laboratory studies, but potato PA acrosiphum euphorbiae T homas (both H emiptera: A phididae, acrosiphini), and bird cherry‐oat BCOA R hopalosiphum padi L . phidini), also contribute to transmission. Studies were conducted with , assess transmission efficiency for various isolates of same...
Viruses transmitted by the whitefly (Bemisia tabaci) are an increasing threat to cucurbit production in southwestern United States and many other regions of world. The crinivirus yellow stunting disorder virus (CYSDV) has severely impacted melon California Arizona since its 2006 introduction region. Within past few years, another crinivirus, chlorotic yellows (CCYV), whitefly-transmitted ipomovirus squash vein yellowing (SqVYV) were found infecting plants California's Imperial Valley. CYSDV,...
Potato virus Y (PVY) is a major concern for potato production in the United States given its impact on both crop quality and yield. Although green peach aphid, Myzus persicae (Sulzer), most efficient PVY vector, it may be less abundant potato-growing areas of Idaho relative to non-potato-colonizing aphid vectors that disperse from nearby cereal fields other crops. A field study was conducted during 2012–2013 examine if noncolonizing aphids as crops dry down before harvest. The fauna sampled...
There has been a recent shift in the prevalence of Potato virus Y (PVY) strains affecting potato with ordinary strain PVYO declining and recombinant PVYNTN PVYN:O emerging United States. Multiple PVY are commonly found fields even individual plants. Factors contributing to emergence not well defined but differential aphid transmission from single mixed infections may play role. We that efficiencies by Myzus persicae, green peach aphid, PVYNTN, PVYN:O, varied depending on cultivar serving as...
Potato virus Y (PVY) is an economically important and reemerging potato pathogen in North America. PVY infection reduces yield, some necrotic recombinant strains render tubers unmarketable. Although PVY(O) the most prevalent strain United States, PVY(NTN) PVY(N:O) are becoming more widespread. Infection rates aphid-inoculated (Myzus persicae (Sulzer)) mechanically inoculated plants were compared across two genotypes ('Yukon Gold' A98345-1), three (PVY(O), PVY(N:O), PVY(NTN)), growth stages...
Single aphids can simultaneously or sequentially acquire and transmit multiple potato virus Y (PVY) strains. Multiple PVY strains are often found in the same field occasionally within plant, but little is known about how interact plants aphid stylets. Immuno-staining confocal microscopy were used to examine spatial temporal dynamics of strain mixtures (PVY O NTN N ) epidermal leaf cells ‘Samsun NN’ tobacco ‘Goldrush’ potato. Virus binding localization was also examined stylets following...
In California, the whitefly-transmitted yellowing viruses, cucurbit yellow stunting disorder virus (CYSDV) and chlorotic yellows (CCYV), both genus
Triticum mosaic virus (TriMV, genus
The increasing prevalence of whitefly-transmitted viruses affecting cucurbit crops has emerged as a significant concern for global production. Two the most widely prevalent threats in Americas are yellow stunting disorder virus (CYSDV) and chlorotic yellows (CCYV) (Crinivirus, Closteroviridae). These induce similar foliar symptoms on (Mondal et al., 2023) leading to loss photosynthetic capability decreased yields. Cantaloupe (Cucumis melo), watermelon (Citrullus lanatus), cucumber sativus)...
Triticum mosaic virus (TriMV; genus
Potato leaf roll virus (PLRV) can reduce tuber yield and quality in potato. Green peach aphid (Myzus persicae [Sulzer]) potato (Macrosiphum euphorbiae [Thomas]) are the two most important potato-colonizing PLRV vectors Pacific Northwest. We compared My. Ma. densities incidences among varieties field to clarify relationships between abundance incidence plants. Aphids were sampled weekly over three years Russet Burbank, Ranger Russet, Norkotah a replicated trial. In all years, was more...
The United States potato industry has recently experienced a strain shift; recombinant virus Y (PVY) strains (e.g., PVYNTN) have emerged as the predominant over long dominant ordinary (PVYO), yet both are often found single infections within same field and mixed individual plants. To understand infection dynamics in plants daughter tubers, three varieties varying for PVY resistance, 'Red Maria', 'CalWhite', 'Pike', were mechanically inoculated either at pre- or postflowering stage with all...
Three infectious bronchitis virus (IBV) isolates, CU82792, CU82805, and CU82808, were recovered from sentinel chickens placed with three different layer flocks of a large commercial poultry farm in New York State. The isolates classified as members the DE072 serotype on basis 1) their S1 genes could be amplified only modified primer designed for 2) restriction fragment length polymorphism patterns, after digestion endonucleases HaeIII, BstyI XcmI, indistinguishable that virus. Additional...
In recent years, several recombinant strains of potato virus Y, notably PVYNTN and PVYN:O have displaced the ordinary strain, PVYO, emerged as predominant affecting USA crop. Previously we reported that were transmitted more efficiently than PVYO when they acquired sequentially, regardless acquisition order. another study, showed binds preferentially to aphid stylet over aphids feed on a mixture PVYNTN. To understand mechanism this transmission bias well preferential binding, separated...