软腐欧文氏菌对大白菜幼根吸附的接种菌量阈值  

THE BACTERIAL NUMBER THRESHOLD IN INOCULATION FOR ADSORPTION OF ERWINIA CAROTOVORA SUBSP.CAROTOVORA TO ROOT SURFACES OF CHINESE CABBAGE

作　　者：董汉松[1] 王金生[2] 方中达[2] 

机构地区：[1]山东农业大学植保系,泰安271018 [2]南京农业大学植保系

出　　处：《山东科学》1993年第2期61-64,共4页Shandong Science

摘　　要：用9种含菌量的菌悬液接种大白菜幼苗根系,分别检测病菌对幼根各分区表面的吸附菌量,估计出了病菌对根不同分区表面吸附所需的接种菌量阈值(菌悬液含菌量低限),为研究吸附性质和机制打下了基础。The young roots of Chinese cabbage were inoculated with 9 serially diluted suspensions of soft rot Erwinia and adsorption of the pathogen to the host root surfaces was detected. The bacterial number thresholds were then determined for reversible and irreversible adsorption on 4 botanical areas of the plant root. It was found that the root hair region had important role in this event of the pathogen—host interactions.

关 键 词：软腐欧文氏菌 大白菜 吸附 软腐病 

分 类 号：S436.341.1[农业科学—农业昆虫与害虫防治]