First report of leaf-spot disease caused by Sphaeropsis visci on Asian mistletoe [Viscum coloratum (Kom.) Nakai] in China  

作　　者：Jie Chen Xuefeng Liu Hanqi Jia Wenbo Zhu 

机构地区：[1]The Laboratory of Prevention and Control,Northeast Forestry University

出　　处：《Journal of Forestry Research》2018年第6期1769-1774,共6页林业研究（英文版）

基　　金：supported by the forestry public welfare industry research special-study group on cultivation and utilization of medicinal fungi and astragalus in Daxing’anling(201004079)

摘　　要：In January 2017, symptoms of a leaf-spot disease were observed on Viscum coloratum plants in Yichun,China. The infected leaves were chlorotic, while sunken lesions formed on diseased branches, which were initially light brown and later turned dark brown. Moreover, diseased branches and leaves formed semi-buried, small, and spherical pycnidia. In total, 20 leaves and 19 branches diseased samples from Yichun, China were collected and examined. The fungus was isolated and identified using Koch’s postulates, morphological characteristics and DNA sequence data. The data presented herein confirmed that the pathogen responsible for the disease was Sphaeropsis visci. To the best of our knowledge, this is the first report of it in China.In January 2017, symptoms of a leaf-spot disease were observed on Viscum coloratum plants in Yichun,China. The infected leaves were chlorotic, while sunken lesions formed on diseased branches, which were initially light brown and later turned dark brown. Moreover, diseased branches and leaves formed semi-buried, small, and spherical pycnidia. In total, 20 leaves and 19 branches diseased samples from Yichun, China were collected and examined. The fungus was isolated and identified using Koch's postulates, morphological characteristics and DNA sequence data. The data presented herein confirmed that the pathogen responsible for the disease was Sphaeropsis visci. To the best of our knowledge, this is the first report of it in China.

关 键 词：Botryosphaeriales Viscum coloratum Morphology PHYLOGENY Sphaeropsis visci New pathogen 

分 类 号：S7[农业科学—林学]