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Position: Home > Articles > Identification of Phytophthora Species Parasiting on Pricklyash Journal of Northwest Forestry University 2013,28 (2) 125-130+142

花椒疫霉病菌种的鉴定

作  者:
谢宁;曹支敏;梁超琼;苗颖;王楠
单  位:
三原县农业科技中心;西北农林科技大学林学院
关键词:
花椒;疫霉;形态学;ITS,致病性
摘  要:
依据菌落特征、无性与有性繁殖体形态、rDNA-ITS系统发育及病菌的致病性,将分离自陕西、甘肃花椒树干基部腐烂病斑上的疫霉菌(Phytophthoraspp.)6个菌系鉴定为3个种:采自甘肃陇南菌系Pwm、Pwb和陕西凤县菌系Pfs2均属于多寄主疫霉(P.multivora P.M.Scott&T.Jung),陕西凤县菌系Pfp和甘肃秦安菌系Pqy为柑橘褐腐疫霉(Phytophthora citrophthora R.E.Sm.&E.H.Sm.),采自陕西凤县的疫霉菌菌系Pfs1为苎麻疫霉(Phytophthora boehmeriae Sawada)。各疫霉菌系的形态学鉴定及致病性测定结果与其rDNN-ITS系统发育分析基本一致。
译  名:
Identification of Phytophthora Species Parasiting on Pricklyash
作  者:
XIE Ning1,CAO Zhi-min1*,LIANG Chao-qiong1,MIAO Ying1,WANG Nan2(1.College of Forestry,Northwest A&F University,Yangling,Shaanxi 712100,China; 2.Agricuttural Scieuce and Technology Center of Sanyuan Courty,Sanyuan,Shaanxi 713800,China)
关键词:
pricklyash;Phytophthora;morphology;ITS;pathogenicity
摘  要:
Based on colonial characteristics,asexual and sexual morphology,rDND-ITS phylogeny and pathogenicity,6 isolates of Phythophthora collected from pricklyash in Shaanxi and Gansu provinces were identified as three species: Phytophthora multivora P.M.Scott & T.Jung included isolates Pwm,Pwb and Pfs2,collected from Wudu,Wenxian in Gansu and Fengxian in Shaanxi respectively,P.citrophthora R.E.Sm.& E.H.Sm comprised isolates Pfp from Fengxian in Shaanxi and Pqy from Qinan in Gansu,and isolate Pfs1 from Fengxian in Shaanxi identified as P.boehmeriae Sawada.The morphologic classification of these Phythophthora isolates basically was in accordance with their molecular phylogeny cluste

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