摘要
采用液相复性速率法测定了黄芪根瘤菌新表观群的中心菌株CA8561和JL84与近缘已知根瘤菌属种模式菌株或参比菌株的DNA同源性.结果表明,分离自中国北方地区的部分黄芪根瘤菌菌株形成了独立的新的DNA同源群,结合其它分类技术的研究结果可以认为这些菌株构成了一个新种.
It was determined that DNADNA relatedness between central strains CA8561 and JL84 of new phenotypic group 8 and 9 respectively, which consist of strains isolated from Astragalus spp., and type strains of described rhizobial species. The results showed that the homology is 0～56% and 0～54.9%. So the phenotypic group 8 and 9 perhaps are new rhizobial species according to the international criteria in DNA homology.
出处
《科技通报》
北大核心
2003年第6期439-441,共3页
Bulletin of Science and Technology
基金
国家自然科学基金资助项目(39970017)
国家自然科学基金重点资助项目(39730010)
关键词
微生物学
黄芪根瘤菌
DNA同源性
系统发育
microbiology
rhizobia isolated from Astragalus spp.
DNA homology
phylogeny
