摘要
东居延海作为内蒙古高原主要湖泊之一,水体中微生物的生存现状尚不明确。该研究利用1/2R2A培养基,从湖泊水样中分离获得74株细菌。16S rDNA序列的系统发育分析表明,α-变形菌纲(α-proteobacteria)的菌株最多,共有39株,约占全部细菌的53%;放线菌纲(Actinobacteria)为第二优势类群,共有19株菌株,占全部菌株的26%;除此之外,还分离获得了9株来自芽孢杆菌纲(Bacilli)、6株来自γ-变形菌纲(γ-proteobacteria)以及1株来自β-变形菌纲(β-proteobacteria)的菌株。这些细菌属于23个属,其中以柄杆菌目(Caulobacterales)短波单胞菌属(Brevundimonas)为优势种群,共9株。
East Juyanhai as one of the major lakes in Inner Mongolia Plateau, the survival status of microorganisms in water is not clear.In this study,74 bacterias was isolated from lake water samples. According to the 16S rDNA sequences system phylogenetic analysis showed that, Alphaproteobacteria strains up to a total of 39 Accounts for about 53% of the total bacteria; Actinomycetes （Actinobacteria） is the second dominant groups,a total of 19 strains,representing 26% of all strains.ln addition, the nine isolated from Bacillus groups,six from γ-proteobacteria groups and one from the β-proteobacteria （Betaproteobacteria） groups. These bacteria belonging to 23 genera, which Caulobacterales of Brevundimonas dominant population, a total of nine.
出处
《内蒙古农业科技》
2014年第4期28-32,51,共6页
Inner Mongolia Agricultural Science and Technology
基金
国家自然科学基金项目(30760004)
内蒙古农业大学科技创新团队项目(NDPYTD2010-3)
