摘要
从湖南省１２个县、市采集分离烟草青枯病菌菌株５６个．根据其致病性测定结果分为强、中、弱３个类群，分别占４６．４％，１６．１％和３７．５％．大多数调查地点强、弱致病类群并存．对其中５１个菌株进行生理生化测定，根据其对乳糖、麦芽糖、纤维二糖和甘露醇、山梨醇、卫茅醇的利用能力以及对硝酸盐的还原作用，判定其生物型分别属于生物型Ⅲ，Ⅲ－１，Ⅲ－２，Ⅲ－３，Ⅲ－４．
strains of Pseudomonas solanacearum gathered from 12 counties of Hunan province were classified into 3 groups of strong,middle and weak strains in the percentage of 37 5%,16 9% and 46 4% seperant according to their pathogenicity to the tobacco variety K326,and the physiological and biochemical characteristics of 51 tested strains were determinded to belong to biotype Ⅲ,Ⅲ 1,Ⅲ 2,Ⅲ 3 and Ⅲ 4 separatedly according to their capacity of utilizing lactose,maltose,cellobiose and manuitol,sorbitol,duleitol and capacity of reducing KNO 3.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
1996年第4期371-374,共4页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南省科委攻关课题
关键词
烟草
青枯病
病原细菌
致病生物因素
湖南
tobacco
bacterial wilt
pathogenic bacteria
pathologenic biological factors
biological typing
Hunan
