Bean golden mosaic virus
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Author(s): Howard F. Schwartz, Colorado State University
Source: IPM Images
Bean golden mosaic virus (BGMV)
The virus is a bipartite geminivirus which causes serious diseases of beans (Phaseolus vulgaris and P. lunatus) and others legumes. It is widely distributed in tropical and some subtropical countries. The symptoms include a yellow-green mosaic in the leaves, stunted growth and distorted pods. Infected leaves curly down and few seeds are produced. It can cause yield losses of more than 50%.
BGMV is transmitted by whiteflies in a persistent manner. That means, the whiteflies are infectious after acquisition for weeks and through moults. However, the virus does not multiply in the insect vectors and is not transmitted to their progeny. Some isolates can be also transmitted mechanically.
| Vernacular names | |
|---|---|
| • Deutsch: | Bohnengoldmosaik-Virus |
| • English: | Bean golden mosaic virus |
| • Español: | mosaico dorado del frijol |
| • Français: | mosaïque dorée du haricot |
| • Português: | Mosaico Dourado do Feijoeiro |
The particles are 18-20 nm in diameter and about 30 nm long. The genome consists of 2 circular and single-stranded DNA molecules which are approximately 2646 and 2587 nucleoides long.
- Other images of Bean golden mosaic virus (IPM Images - click to enlarge)
symptoms on bean
symptoms on bean
symptoms on bean
infected bean plants
