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Cell‐to‐cell movement and assembly of a plant closterovirus: roles for the capsid proteins and Hsp70 homolog
A dual role for the viral molecular chaperone Hsp70h in virion assembly and transport, combined with the previous finding of this protein in intercellular channels, allowed this work to propose a model of closteroviral movement from cell to cell.
Undifilum, a new genus for endophytic Embellisia oxytropis and parasitic Helminthosporium bornmuelleri on legumes
The distinct morphology and genetics of these taxa demonstrates that these fungi, both recovered from legumes, represent a new genus, hereinafter described as Undifilum.
Production of swainsonine by fungal endophytes of locoweed.
Morphological evidence and sequence analysis of the ITS region suggest that the endophytes are most closely related to Embellisia, however, with the paucity of Embell isia species represented in sequence databases, precise taxonomic placement will await further study.
Maize fine streak virus, a New Leafhopper-Transmitted Rhabdovirus.
The data indicate the virus isolated from fall-planted sweet corn leaves showing fine chlorotic streaks is a new species in the genus Nucleorhabdovirus, and preliminary sequence analysis indicated the virus had similarity to members of the family R Habdoviridae.
Moisture and temperature requirements for London rocket (Sisymbrium irio) emergence
Abstract London rocket is hypothesized to be the most important overwintering host of the beet leafhopper in southern New Mexico. Knowledge of the environmental factors affecting the emergence of…
Swainsonine Biosynthesis Genes in Diverse Symbiotic and Pathogenic Fungi
A new biosynthetic hypothesis for this alkaloid is suggested, extending the known taxonomic breadth of swainsonine producers to at least four orders of Ascomycota, and suggest that swains onine has roles in mutualistic symbioses and diseases of plants and animals.
Localization of endophytic Undifilum fungi in locoweed seed and influence of environmental parameters on a locoweed in vitro culture system.
- E. Oldrup, J. McLain-Romero, Anna PadillaA. Padilla, A. Moya, Dale Gardner, R. Creamer
- 7 May 2010
Endophytic Undifilum oxytropis was identified within the parenchyma layers in seeds of Astragalus lentiginosus M.E. Jones using light microscopy and polymerase chain reaction and U. oxytropis cultures were subjected to environmental stresses including high temperature, low and high pH media, nutrient de...
Kaolin-based foliar reflectant affects physiology and incidence of beet curly top virus but not yield of Chile pepper
Kaolin treatments suppressed beet curly top virus on chile and reduced water stress parameters during the hottest months of the growing season, suggesting that it would be useful in New Mexico chile production in years with moderate disease pressure.
Relationship Between the Endophyte Embellisia spp. and the Toxic Alkaloid Swainsonine in Major Locoweed Species (Astragalus and Oxytropis)
A survey of the major locoweeds from areas where locoweed poisoning has occurred and found species found to contain the fungal endophyte and produce substantial amounts of swainsonine were A. mollissimus, A. cibarius, and O. sericea.
Stylet penetration behavior resulting in inoculation of a semipersistently transmitted closterovirus by the whitefly Bemisia argentifolii
The electrical penetration graph technique was used to determine what part of stylet penetration behavior by the whitefly vector, Bemisia argentifolii Bellows & Perring, is lettuce chlorosis virus inoculated in the host plant Malva parviflora L. LCV.