不同鉴别寄主对中国大豆疫霉病菌鉴定结果  

Identification of Soybean Phytophthora Sojae with Soybean Hosts from Different Countries

作　　者：马淑梅[1] 马成云[2] 

机构地区：[1]黑龙江大学农学院,黑龙江哈尔滨150080 [2]黑龙江农业职业技术学院,黑龙江佳木斯154007

出　　处：《大豆科学》2008年第5期819-822,共4页Soybean Science

基　　金：国家科技支撑计划资助项目(2006BAD08A08);农业行业专项资助项目(nyhyzx07-053)

摘　　要：用美国、日本和中国3套鉴别寄主对近年在中国大豆主产区新采集的18份有代表性的疫霉病菌株进行鉴定。采用苗期下胚轴人工接种鉴定的方法进行,结果表明:多数大豆疫霉病菌株对不同鉴别寄主抗感反应差异较大,少数菌株按标准模式表现稳定一致的反应。说明中国大豆疫霉病菌与美国和日本大豆疫霉病菌存在生理分化的复杂性及反应模式的多样性;自行筛选的鉴别寄主进一步完善后能成为独立的鉴定体系。Phytophthora root rot, caused by Phytophthora sojae Kaufmann ＆ Gerdemann,is a devastating disease of soybean, Planting resistant cnltivars is the most effective and economic method of controlling the disease. However,P. sojae is highly variable pathogen, resistance can be overcome by development of new races of the pathogen. To set up the host differential sets for P. sojae in China and make the results in accordance with that of other countries, eighteen accessions of P. sojae from Heilongjiang Province,the main soybean production area of China,were tested by three sets of host differentials from America, Japan and China, respectively. The strains of P. sojae were inoculated to lower- hypocotyl of soybean seedlings and the reaction types of host plants were determined. Results showed most P. sojae strains reacted differently among differential host sets and only a few strains had stable reaction. It suggested that the differentiation and reaction types of P. sojae races were different among countries.

关 键 词：大豆 鉴别寄主 疫霉病菌 

分 类 号：S435.651[农业科学—农业昆虫与害虫防治]