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The cultivation of calopo, Calopogonium mucunoides, as a promising forage legume for the lowland tropics, was hindered by its susceptibility to a severe yellow mosaic disease observed in the Eastern Plains of Colombia. An isometric virus ca. 28 nm in diameter was observed by electron microscopy i...
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...
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...
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 ...
Etiology of "amachamiento" "(sterility") in Phaseolus vulgaris in Costa Rica. In the last decade the problem known as "amachamiento" ("sterility") has been increasing in the main bean production regions of Costa Rica. This problem consists of a reduction of 24% - 50% in the production of affected...
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