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The occurrence of bean common mosaic necrosis virus in wild and forage legumes in Uganda

Published by:
Publication date
03/11/2003
Number of Pages
9
Language:
English
Type of Publication:
Articles & Journals
Focus Region:
Sub-Saharan Africa
Focus Topic:
Agricultural Value Chains / Agri-Businesses
Health & Diseases
Type of Risk:
Biological & environmental
Commodity:
Crops
Source
http://dx.doi.org/10.1046/j.1365-3059.1997.d01-12.x
Author
Allen, D.J.; Femi Lana, A.; Sengooba, T.N.; Spence, N.J.; Walkey, D.G.A.
Organization
Namulonge Agricultural Research Institute, Uganda

Bean common mosaic necrosis virus (BCMNV) was isolated from Centrosema pubescens, Crotalaria incana, Lablab purpureus, Phaseolus lunatus, Senna bicapsularis, S. sophera, Vigna vexillata and an unidentified Crotalaria species growing in Uganda. Thirteen distinct isolates were characterized using symptoms, pathogenicity in differential bean cultivars, serology, immunosorbent electron microscopy, and seed and aphid transmission. Some isolates conformed with the characteristics of previously described strains of BCMNV but others showed novel properties. All isolates reinfected the natural host from which they were obtained. The origin and ecological significance of these isolates is discussed.