Detection of Bean golden mosaic virus in Fabaceae family plants / Detecção de Bean golde nmosaic vírus em plantas da família Fabaceae

Abstract

The Bean golden mosaic virus (BGMV) is the causal agent of the golden mosaic of bean, one of the main diseases of common bean (Phaseolus vulgaris). This virus is transmitted by the whitefly [Bemisia tabaci (Gennadius)], an insect of great agricultural importance due to its polyphagous behavior. This study aimed to identify plants of the Fabaceae family, host of BGMV. Sixteen plant species belonging to the Fabaceae family were inoculated with BGMV by whitefly. Fifteen days after inoculation, the plants were evaluated for the manifestation of the mosaic symptom, and leaves were collected for molecular detection of the virus. The experiment was carried out in a greenhouse, with a completely randomized design, five replicates, and one virus-free control for each species. The presence of BGMV was confirmed in Lathyrus sativus, Glycine max, Canavalia ensiformis,Vigna unguiculataand Macroptilium atropurpureum, in addition to beans (Phaseolus vulgaris).