干旱区生态环境知识资源中心(Arid): 西北地区甘草根瘤菌的表型多样性研究

Arid

	西北地区甘草根瘤菌的表型多样性研究
其他题名	Phenotypic feature diversities of rhizobia isolated from glycyrrhiza linn in orthwest adir-semiarid
	杨亚珍; 韦革宏; 万晓红; 陈春
来源期刊	微生物学通报
ISSN	0253-2654
出版年	2004
卷号	31 期号:2 页码:20-25
中文摘要	选用分离自西北干旱、半干旱地区的甘草根瘤菌68株和34株参比菌株，进行了113项表型性状测定，结果表明：不同地理来源、同一地理来源、甚至同一植株不同根瘤菌株在碳氮源利用、抗生素敏感性、抗逆性等方面存在着差异。部分菌株具有较强的耐盐耐碱能力，其中有5株和1株菌分别能耐受50g/L、60g/L的NaCl；有43％的菌株能在初始pr02的YMA培养基上生长。从数值分类树状图谱发现，在85．5％的相似水平上供试菌株构成了3个表观群。群I有27株菌，除4株来自陕西外，其余均来自新疆。群II有4株菌，皆来自陕西。群III有8株菌，6株来自陕西，2株来自宁夏，它们与尺．ha／naz~nse聚在一起。而群I、群II没有与参比菌株聚在一起，可能是新的表观群，其分类地位需进一步确定。
英文摘要	113 phenotypic features of 68 strains isolated from Qycyrrhiza Linn, growing in northwest arid-semiarid region of China, were analyzed. 34 reference strains were included for comparison. The result showed that there were great di versities among strains isolated from different geographic origin, the same geographic origin, and the different root nodi ules of the same root in carbon and nitrogen nutrient utilization, resistance to antibiotics, endurance to salt, alkali. Some strains had the properties of endurance to salt and alkali. 5 strains and 1 strain could endure 50g/L, 60g/L NaCl respec tively. 20% and43% strains could grow in YMA medium with pH5, pH12. Numerical taxonomy showed that the strains formed 3 groups at 85.5% similarity level. Group I contained 27 strains, 23 strains isolated from Xinjiang, 4 isolated from shannxi. Group If had 4 strains isolated from shannxi. Group III ( 6 strains isolated from shannxi, 2 isolated from Ningxia) were clustered into R. liainanense. Group I and group II may be new groups, which were not clustered into the reference strains, and there taxonomic status must be confirmed by further measurements.
中文关键词	甘草
英文关键词	Qycyrrhiza Linn
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Microbiology
WOS研究方向	Microbiology
CSCD记录号	CSCD:1634028
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205554
作者单位	杨亚珍, 西北农林科技大学资源环境学院, 杨陵, 712100.; 韦革宏, 西北农林科技大学资源环境学院, 杨陵, 712100.; 万晓红, 西北农林科技大学资源环境学院, 杨陵, 712100.; 陈春, 西北农林科技大学资源环境学院, 杨陵, 712100.
推荐引用方式 GB/T 7714	杨亚珍,韦革宏,万晓红,等. 西北地区甘草根瘤菌的表型多样性研究[J]. 西北农林科技大学,2004,31(2):20-25.
APA	杨亚珍,韦革宏,万晓红,&陈春.(2004).西北地区甘草根瘤菌的表型多样性研究.微生物学通报,31(2),20-25.
MLA	杨亚珍,et al."西北地区甘草根瘤菌的表型多样性研究".微生物学通报 31.2(2004):20-25.