The progresses of research on potato mop top virus（PMTV） were reviewed in this paper. The distribution and transmission, molecular characteristic, symptoms, pathogenic mechanism of PMTV and its detection methods were briefly introduced. The virus occurred in potatoes grown in high-latitude or high-altitude regions with cooler climates and was transmitted by seeds and Spongospora subterranea, the causal agent of potato powdery scab disease.and could cause potato spraing, a serious tuber disease whose symptoms include necrotic arcs and lines in...
