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中国农学通报 ›› 2021, Vol. 37 ›› Issue (15): 128-136.doi: 10.11924/j.issn.1000-6850.casb2020-0328

所属专题: 植物保护

• 植物保护·农药 • 上一篇    下一篇

半边红李炭疽病病害调查及病原菌鉴定

王群1(), 毕云青1, 何成兴1, 郭志祥1, 钟德卫2, 李君洪3, 陈乾昭2, 游继华2, 黄正会2, 李进斌1()   

  1. 1云南省农业科学院农业环境资源研究所,昆明 650205
    2云南省昭通市绥江县农业农村局农技推广中心,云南绥江 657700
    3绥江县渔业技术服务站,云南绥江 657700
  • 收稿日期:2020-08-20 修回日期:2020-11-13 出版日期:2021-05-25 发布日期:2021-05-18
  • 通讯作者: 李进斌
  • 作者简介:王群,女,1970年出生,四川资阳人,副研究员,博士,研究方向:生物多样性及植物病害研究。通信地址:650205 云南省昆明市北京路2238号 云南省农科院环资所,Tel:15288249540,E-mail: qunwang70@163.com
  • 基金资助:
    云南省专家基层科研工作站—李进斌专家工作站(绥江县云人社通「2017」130号);国家自然科学基金“稻瘟病菌无毒基因Avr-Pi9在云南稻区的变异及微进化特点”(31860481);云南省人才培养项目“省学术技术带头人后备人才”(2015HB076)

Anthracnose Disease on Prunus salicina ‘Banbianhong’: Investigation and Pathogen Identification

Wang Qun1(), Bi Yunqing1, He Chengxing1, Guo Zhixiang1, Zhong Dewei2, Li Junhong3, Chen Qianzhao2, You Jihua2, Huang Zhenghui2, Li Jinbin1()   

  1. 1Agricultural Environment and Resources Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205
    2Agricultural Technology Extension Center of Agricultural and Rural Bureau of Suijiang County, Suijiang Yunnan 657700
    3Service Station of Fishery Technology of Suijiang County, Suijiang Yunnan 657700
  • Received:2020-08-20 Revised:2020-11-13 Online:2021-05-25 Published:2021-05-18
  • Contact: Li Jinbin

摘要:

探明绥江半边红李炭疽病为害程度及病原菌的种类,可为李树炭疽病的防控提供依据。以绥江县2个主要种植区会仪镇和新滩镇的6个半边红李果园为研究对象,对炭疽病为害状况进行了调查,并对炭疽病原菌进行分离保存;利用病原菌分生孢子形态及核糖体ITS序列对绥江半边红李树炭疽病致病菌进行了种类鉴定和分析。病害调查表明,新滩镇比会仪镇的危害程度严重。单孢分离获得15株分离株,各分离株平板菌落形态略有差异,获得4类不同的分生孢子,经回接验证均致病。rDNA ITS序列系统进化分析初步推定半边红李炭疽病的病原菌为胶孢炭疽复合群(Colletotrichum gloeosporioides species complex)和暹罗炭疽复合群C. siamense species complex。该研究探查了半边红李炭疽病的为害状况,获得了李炭疽菌的单胞分离菌株,初步鉴定了半边红李炭疽菌归属的复合群。

关键词: 半边红李, 炭疽病, 炭疽菌, 形态鉴定, ITS

Abstract:

The aim is to investigate the anthracnose disease and the pathogen species in Prunus salicina ‘Banbianhong’ and provide a basis to prevent and control the disease. In this study, six P. salicina ‘Banbianhong’ orchards were taken as research objects in two major production areas, Huiyi and Xintan Town in Suijiang County, Yunnan Province, anthracnose disease was investigated and pathogenic fungi were isolated and stored. The pathogen species were identified and analyzed according to the spore morphology and ITS sequences of Colletotrichum. Disease investigation showed that the disease severity of anthracnose in Xintan was higher than that in Huiyi. A total of 15 single spore isolates were obtained, and the morphology of colonies on every strain plate had weak difference. Four kinds of conidia were obtained and all of them were pathogenic by Tie-back experiment. rDNA ITS sequence phylogenetic analysis showed that the pathogen of anthracnose disease in P. salicina ‘Banbianhong’ were Colletotrichum gloeosporioides species complex and C. siamense species complex. This study investigated the damage status of anthracnose disease in P. salicina ‘Banbianhong’, got the single spore isolates, and determined the complex groups of the pathogen of anthracnose disease in P. salicina ‘Banbianhong’.

Key words: Prunus salicina ‘Banbianhong’, anthracnose, Colletotrichum spp., morphological identification, ITS

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