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First report of tobacco vein banding mosaic virus naturally infecting black nightshade (Solanum nigrum) in China.

Bi, J. A. ; Zheng, H. Y. ; Lu, Y. W. ; Peng, J. J. ; Lin, L. ; Chen, Z. ; Song, B. A. ; Chen, J. P. ; Yan, F.

Plant Disease 2020 Vol 104 No. 4 pp. 1265-1265;

Abstract

Black nightshade (Solanum nigrum var. humile) is a common solanaceous plant that is an arable weed and also used in herbal medicine in China. The weed occurs commonly in a wide variety of habitats, including orchards, fields, villages, and roadsides in southwest provinces in China. In May 2019, approximately 3% of black nightshade plants growing in a tomato field at Kunming city in Yunnan province in China were found showing typical symptoms of viral disease (chlorosis, mosaic, leaf twisting and plant stunting). The causal pathogen was isolated and identified as Tobacco vein banding mosaic virus (TVBMV) based on morphological, molecular and pathogencity analyses. This is thought to be the first report of TVBMV infecting S. nigrum in natural field conditions.