The Pathogen Identification of Apricot Fruit Spots Disease in Gongliu County, Xinjiang / 新疆巩留县杏果实斑点病病原菌鉴定

• Published in: Forest research (Beijing) Vol. 32; no. 2; p. 117
• Main Authors: 程元, 淮稳霞, 姚艳霞, 林若竹, 刘忠军, 赵文霞
• Format: Journal Article
• Language: Chinese
• Published: Beijing Chinese Academy of Forestry 01.01.2019
• Subjects: Disease; Fruits; Morphology; Pathogens
• ISSN: 1001-1498
• DOI: 10.13275/j.cnki.lykxyj.2019.02.017

[Objective] This study aims to identify the pathogen of apricot fruit spots disease in Gongliu County, Xinjiang, and to find the causes of apricot fruit diseases, so as to provide a reference for the disease prevention and control of local apricot trees.[Method] The fungal strains on the infected apricot were isolated by using conventional tissue separation method, and the isolates were identified by morphological observation, phylogenetic analysis and pathogenicity.[Result] The morphological feature of conidia developed on apricot fruit lesions and PDA medium were consistent with the conidia produced by Thyrostroma carpophilum (Lév.) B. Sutton. Furthermore, sequence identity comparison showed that all the three strains obtained were 100% identical in rDNA-ITS sequences with the NCBI reference sequence of T. carpophilum, and the three strains grouped into one consensual cluster with the reference isolates of T. carpophilum in the phylogenic tree based on rDNA ITS sequence. After inoculation of the obtained is