陕西省杨树溃疡病菌地理种群研究  

Geographical Species of Poplar Canker' Pathogen in Shaanxi Province

作　　者：姜自如[1] 张刚龙[1] 曹支敏[1] 周丽[1] 

机构地区：[1]西北农林科技大学林学院,陕西杨陵712100

出　　处：《西北林学院学报》2012年第2期102-108,共7页Journal of Northwest Forestry University

基　　金：国家林业公益性行业科研专项(200804023)

摘　　要：对陕西省不同地区杨树溃疡病病原菌研究显示,在关中地区,杨树溃疡病病原菌包括聚生小穴壳(Dothiorella gregaria Sacc.)、金黄壳囊孢(Cytospora chrysosperma Fr.)、杨细盾霉(Co-niothyrium populinum Schulz.et Sacc.)和镰刀菌(Fusariumsp.)4种真菌;陕北地区杨树溃疡病主要由C.populinumSchulz.et Sacc.及C.chrysosperma Fr.所致;陕南杨树溃疡病发生少。接种试验表明,聚生小穴壳和杨细盾霉在各地理菌系之间存在着培养性状与致病性分化,聚生小穴壳致病性较强,杨细盾霉致病性较弱。The studies showed that poplar canker,caused by pathogenic fungi including Dothiorella gregaria Sacc.,Cytospora chrysosperma Fr.,Coniothyrium populinum Schulz.et Sacc.and a few Fusarium sp.,mainly distributed in middle Shaanxi,poplar canker mainly caused by C.populinum Schulz.et Sacc.and C.chrysosperma Fr.in northern Shaanxi,and there were few poplar canker caused by D.gregaria Sacc.in southern Shaanxi.Inoculating tests proved that D.gregaria Sacc.showed strronger pathogenicity,C.populinum Schulz.et Sacc.Had weaker pathogenicity,and both showed culture character and pathogenic differentiation in geographical isolates.

关 键 词：地理分布 杨树溃疡病病原真菌 培养性状 致病性 

分 类 号：S763.103[农业科学—森林保护学]