Search Results - "O'Neill, N.R"

Phylogeny of Stemphylium spp. based on ITS and glyceraldehyde-3-phosphate dehydrogenase gene sequences by Camara, M.P.S, O'Neill, N.R, Van Berkum, P

“…The phylogenetic relationships among 44 isolates representing 16 species of Stemphylium were inferred from ITS and glyceraldehyde-3-phosphate dehydrogenase…”
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Comparison of Colletotrichum orbiculare and Several Allied Colletotrichum spp. for mtDNA RFLPs, Intron RFLP and Sequence Variation, Vegetative Compatibility, and Host Specificity by Liu, B, Wasilwa, L.A, Morelock, T.E, O'Neill, N.R, Correll, J.C

“…Based on spore morphology, appressorium development, sequence similarities of the rDNA, and similarities in amplified restriction fragment length polymorphism…”
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Genetic diversity in Phytophthora capsici from eastern China by Sun, W.X., Jia, Y.J., O'Neill, N.R., Feng, B.Z.H., Zhang, X.G.

“…Phytophthora capsici is a pathogen of several economically important crops, including pepper (Capsicum annuum). The pathogen attacks the roots, leaves, stems,…”
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Molecular phylogeny of Leptosphaeria and Phaeosphaeria by Camara, S, Palm, M.E, Van Berkum, P, O'Neill, N.R

“…The objectives of this study were to determine the phylogenetic relationships of species of Leptosphaeria and Phaeosphaeria and evaluate the phylogenetic…”
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Alfalfa (Medicago sativa L.) resistance to the root-lesion nematode, Pratylenchus penetrans: defense-response gene mRNA and isoflavonoid phytoalexin levels in roots by Baldridge, G.D. (Minnesota Univ., St. Paul, MN (USA). Dept. of Plant Pathology), O'Neill, N.R, Samac, D.A

“…Alfalfa (Medicago sativa) varieties with antibiosis-based resistance to the root-lesion nematode (Pratylenchus penetrans), a migratory endoparasite of many…”
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Environmental influences on the release of Ophiosphaerella agrostis ascospores under controlled and field conditions by Kaminski, J.E, Dernoeden, P.H, O'Neill, N.R

“…Ophiosphaerella agrostis, the causal agent of dead spot of creeping bentgrass (Agrostis stolonifera), can produce prodigious numbers of pseudothecia and…”
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Infusion and translocation of systemic fungicides applied to [cottonseed and soybean] seeds in acetone by O'Neill, N.R, Papavizas, G.C, Lewis, J.A

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Continuous production of extracellular antioxidants in suspension cells attenuates the oxidative burst detected in plant microbe interactions by Jacyn Baker, C., O’Neill, Nichole R., Deahl, Kenneth, Lydon, John

“…Suspension cells of Solanacearum tuberosum and Nicotiana tabacum placed in fresh buffer rapidly produce and maintain significant pools of extracellular…”
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Molecular variability of a Minnesota population of Phoma medicaginis var. medicaginis, the causal agent of spring black stem and leaf spot of alfalfa by Castell-Miller, C.V, Szabo, L.J, Rosewich Gale, L, O'Neill, N.R, Samac, D.A

“…Spring black stem and leaf spot of alfalfa (Medicago sativa) caused by Phoma medicaginis var. medicaginis is an important disease of alfalfa in temperate…”
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Influence of adjuvants on disease development by Pleospora papaveracea on opium poppy (Papaver somniferum) by Bailey, Bryan A., O'Neill, Nichole R., Anderson, James D.

“…Adjuvant effects on disease severity caused by the bioherbicide P. papaveracea on opium poppy were evaluated. Tween 20, Tween 80, Triton X-100, Tactic,…”
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Production of Pleospora papaveracea biomass in liquid culture and its infectivity on opium poppy (Papaver somniferum) by Bailey, B. A., Hebbar, K. P., Lumsden, R. D., O'Neill, N. R., Lewis, J. A.

“…The fungus Pleospora papaveracea is a potential biocontrol agent for opium poppy. The objective of this study was to characterize the growth and production of…”
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Application of amplified restriction fragment length polymorphism for genetic characterization of Colletotrichum pathogens of alfalfa by O'Neill, N.R. (USDA, ARS, Beltsville, MD.), Van Berkum, P, Lin, J.J, Kuo, J, Ude, G.N, Kenworthy, W, Saunders, J.A

“…Amplified restriction fragment length polymorphism (AFLP) was used to assess the levels of genomic variations among species and isolates of the genus…”
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Early responses during plant-bacteria interactions in tobacco cell suspensions by Baker, C.J. (Microbiology and Plant Pathology Laboratory, USDA, ARS, Beltsville, MD), O'Neill, N.R, Keppler, L.D, Orlandi, E.W

“…Bacteria that induce a hypersensitive response in tobacco leaves initiate a net uptake of extracellular H(+) and a net increase in extracellular K(+) in…”
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Southern blight [Sclerotium rolfsii] of cool season grasses by O'Neill N.R

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Compatible and incompatible responses to alfalfa cotyledons to races 1 and 2 of Colletotrichum trifolii by O'Neill, N.R, Saunders, J.A

“…Specific race interactions between Colletotrichum trifolii and cultivars of resistant and susceptible alfalfa were examined in nonwounded excised cotyledons…”
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Defense expression in protected tissues of Medicago sativa is enhanced during compatible interactions with Colletotrichum trifolii by O Neill, Nichole

“…The defense response to anthracnose, induced in alfalfa by avirulent Colletotrichum trifolii race 1, was further enhanced following challenge by a virulent…”
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Occurrence of Ophiobolus patch disease in Maryland by Dernoeden, P.H, O'Neill, N.R

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Characterization of induced resistance to anthracnose in alfalfa by races, isolates, and species of Colletotrichum by O'Neill, N.R. (Germplasm Quality and Enhancement Laboratory, Beltsville, Agricultural Research Center, ARS, USDA, Beltsville, MD), Elgin, J.H. Jr, Baker, C.J

“…The phenomenon of induced resistance and its biochemical and physiological basis is being investigated in the anthracnose disease of alfalfa (Medicago sativa)…”
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Fungistatic activity of propyl-N-(gamma-dimethylaminopropyl) carbamate on Pythium spp. and its reversal by sterols by Papavizas, G. C.

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New systemic fungicides for the control of cotton seedling disease by Papavizas, G. C.

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