D河北省粘细菌物种资源多样性的研究_承德市区及其五县生态样品的研究_李艳青.pdf

26 3 Vol. 26, No . 3 2005 9 Journal of Hebei University of Science and T echnolo y Sept. 2005 　　:1008-1542(2005)0-3 021-5 04 ——— 李艳青, 张利平,杨润蕾 (河北大学生命科学学院, 河北保定　07 1002) 　:采用本室创立或改进的粘细菌分离纯化方法, 对采自 德不同地区的372 份土壤或其他生 态样品中的粘细菌进行了分离纯化和初步鉴定,按不同地点、样品性质和生态环境进行了种群分布 及多样性的统计分析。从所采集的样品中, 共分离得到7 个属(A r chang i um,My x ococcus, Cy sto- bacter,Cor al lococcus,M el it tang i um, S tig ma tell a, N annocy st is )的300 余株粘细菌。分析结果表 明, 德地区粘细菌在营养丰富的样品中分布数量多,种群多样性好;野外地区样品的粘细菌数量 及种群多样性较市区样品具有明显优势;样品性质和分离方法在粘细菌种属多样性的分析中也有 重要的影响。 :粘细菌;种群分布;生态环境;资源多样性;分菌率 :Q938. 1　　　:A Study on diversity of species resource of myxobacteria in Hebei province:urban district and five counties of Chen de LI Yan-qin ,ZHANG L-i pin ,YANG Run-lei (Colle e of Life Science, Hebei University, Baodin Hebei 071002, China) Abstract:With isolation methods desi ned or improved by our laboratory, more than 300 strains of 7 enera, A rchang ium, My x ococcus, Cy s tobacter, Cora llococcus, Me littang ium, S tig ma tella and Nannocy stis of myxococcales were isolated from 372 samples in some areas of Chen de. Analy sis of the sam ples of show s that isolated myxobacteria have a lar e quantity and a ood diversity of species in nutritious earth different locations, characters and environment. And the mycobacteria in wild samples are ascendent in quantity and diversity than in incity samples. The sample characters and isolation methods play important roles in the study on diversity of species of myxobacteria. Key words:myxobacteria;population distribution;environment;diversity;ratio of isolation 　　(Myxococcales),:, , [1] , 。, 。20 90 [2] (epo