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The two major virus-specific proteins found in plants infected by maize stripe virus (MStpV), rice hoja blanca virus (RHBV), and Echinochloa hoja blanca virus (EHBV) were compared by serological and one-dimensional peptide-mapping analysis. When total cellular proteins from healthy plants and pla...
A comprehensive field survey was carried out in 2011 spanning thirty locations within the forest and savannah agroecologies of Kwara State, Nigeria. This was with the objective of having an overview of the prevalence of virus disease symptoms and to specifically identify the viruses infecting cow...
Dioscorea rotundata plants from Nigeria showing green vein banding and shoe-string symptoms were found to be infected with a flexuous rod-shaped virus, about 805nm long. Infected leaves contained masses of filamentous virus-like particles and cytoplasmic inclusions usually associated with infecti...
Fine, spiral, filamentous particles ~3 nm in diameter were consistently associated with hoja blanca-affected rice plants. The filamentous particles were isolated from infected plants following organic solvent clarification, concentration with polyethylene glycol, and equilibrium centrifugation in...
La mosca blanca Bemisia tabaci es una de las plagas más ampliamente distribuidas en regiones tropicales y subtropicales del mundo donde afecta más de 600 especies de plantas cultivadas y silvestres. Los daños que causa se deben a diversos efectos del insecto en las plantas atacadas, como el debil...
En los últimos años, el Valle del Cauca ha sufrido la incidencia de begomovirus en plantaciones de tomate causando el abandono de muchas áreas de cultivo. El control de estos virus ha estado enfocado hacia el control del vector pero las medidas implementadas no son totalmente efectivas. Por esta ...
The average productivity of cowpea in the existing traditional systems is low due to a complex of biotic and abiotic stresses. The biotic factors include insect pests, parasitic plants, and viral, fungal and bacterial diseases. Concerted efforts are being made to develop improved cowpea varieties...
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