甘肃不同生态区域苜蓿根瘤菌表型多样性分析  

Phenotype diversities of alfalfa rhizobium strains collected in different ecological regions in Gansu Province

作　　者：张小甫[1] 师尚礼[1] 南丽丽[1] 陈积山[1] 满元荣[1] 

机构地区：[1]甘肃农业大学草业学院,草业生态系统教育部重点实验室,中美草地畜牧业可持续发展研究中心,甘肃兰州730070

出　　处：《甘肃农业大学学报》2009年第3期106-111,共6页Journal of Gansu Agricultural University

基　　金：“十一五”国家科技支撑计划(2006BAD01A19);农业部公益性行业(农业)科研专项(nyhyzx07-022)

摘　　要：对甘肃不同生态气候区域筛选出的促生能力好的31株分离自‘阿尔岗金’(Medicago sativa‘Alogon-quin’)和‘陇东苜蓿’(Medicago sativa‘Longdong’)2个紫花苜蓿品种的根瘤菌株,进行性状测定和聚类分析.结果表明:31株供试菌中,DL67、GL16、QA33B、QL31B、WA24和WL27菌株综合功能最强;聚类分析结果表明,31株供试菌和3株对照标准菌株均为中华根瘤菌属(Sinorhizobiumsp)根瘤菌,但GA26菌株与其它33株菌株分属不同类群.31 bacterial stains separated from two alfafa cultivars, Medicago sativa ＇ Alogonquin＇ and Medicago sativa ＇Longdong＇, which were collected in different ecological or climatic regions in Gansu Province, were screened for traits determination and cluster analysis. The results showed that DL67, GL16, QA33B, QL31B,WA24 and WL27 had stronger comprehensive function than others. According to the cluster analysis, all the 31 bacterial stains and 3 control stains belonged to Sinorhizobium, however,the strains GA26 was clustered into one group.

关 键 词：苜蓿 根瘤菌 抗逆性 表型性状 

分 类 号：Q939.114[生物学—微生物学]