Mushroom tumor: a new disease on Flammulina velutipes caused by Ochrobactrum pseudogrignonense
文献类型： 外文期刊
作者： Wu, Zhipeng 2 ; Peng, Weihong 2 ; He, Xiaolan 2 ; Wang, Bo 2 ; Gan, Bingcheng 2 ; Zhang, Xiaoping 1 ;
作者机构： 1.Sichuan Agr Univ, Coll Resources, Chengdu 611130, Peoples R China
2.Sichuan Acad Agr Sci, Soil & Fertilizer Inst, Chengdu 610066, Peoples R China
3.Minist Agr, Sci Observing & Expt Stn Southwestern Reg Agromic, Chengdu 610066, Peoples R China
关键词： winter mushroom; off-season cultivation; bacterial pathogen; southwest China
期刊名称：FEMS MICROBIOLOGY LETTERS （ 影响因子：2.742； 五年影响因子：2.856 ）
ISSN： 0378-1097
年卷期： 2016 年 363 卷 2 期
页码：
收录情况： SCI
摘要： Mushroom tumor on Flammulina velutipes has become the main disease during the off-season cultivation of F. velutipes while the causal organism has remained unknown. The present study was aimed at identifying the pathogen confirming its pathogenisity following Koch's Postulates, characterizing it using morphological, physiological, biochemical and molecular features, and studying its current distribution. We determined that mushroom tumor is a new bacterial infection disease caused by Ochrobactrum pseudogrignonense. It produces tumor-like structures on the surface of the substrate, and inhibits the formation of primordia and fruiting of F. velutipes. The molecular studies showed that this new pathogen is closely related to Ochrobactrum based on 16S rRNA sequences. This is the first time that Ochrobactrum has been shown to be a pathogen of a mushroom.
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