Hiorns W D, Methé B A, Nierzwicki-Bauer S A, Zehr J P
Darrin Fresh Water Institute, Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA.
Appl Environ Microbiol. 1997 Jul;63(7):2957-60. doi: 10.1128/aem.63.7.2957-2960.1997.
Bacterial communities of seven lakes in the Adirondack Mountains of New York State were characterized by amplification and sequencing of 16S ribosomal DNA. Analysis of over 100 partial sequences revealed a diverse collection of lineages, largely of the class Proteobacteria (19% alpha subdivision, 31% beta subdivision, and 9% gamma subdivision), the phylum Cytophaga-Flavobacteria-Bacteroides (15%), and the order Actinomycetales (18%). Additionally, a number of the sequences were similar to those of the order Verrucomicrobiales. However, few of the sequence types are closely related to those of characterized species. The relative contributions of the groups of sequences differed among the lakes, suggesting that bacterial population structure varies and that it may be possible to relate aquatic bacterial community structure to water chemistry.
通过对16S核糖体DNA进行扩增和测序,对纽约州阿迪朗达克山脉七个湖泊的细菌群落进行了特征分析。对100多个部分序列的分析揭示了各种各样的谱系,主要是变形菌纲(19%为α亚类、31%为β亚类、9%为γ亚类)、噬纤维菌-黄杆菌-拟杆菌门(15%)和放线菌目(18%)。此外,一些序列与疣微菌目的序列相似。然而,很少有序列类型与已鉴定物种的序列密切相关。不同湖泊中各类序列的相对贡献有所不同,这表明细菌种群结构存在差异,并且有可能将水生细菌群落结构与水化学联系起来。