Lindström Eva S, Kamst-Van Agterveld Miranda P, Zwart Gabriel
Limnology/Department of Ecology and Evolution, Evolutionary Biology Centre, Uppsala University, Norbyv. 20, SE-75236 Uppsala, Sweden.
Appl Environ Microbiol. 2005 Dec;71(12):8201-6. doi: 10.1128/AEM.71.12.8201-8206.2005.
The distribution of 15 typical freshwater bacterial groups in 15 diverse lakes in northern Europe was investigated using reverse line blot hybridization. Statistical evaluation of the data in relation to the characteristics of the lakes showed that pH, temperature, and the theoretical hydrological retention time of the lakes were most strongly related to variations in the distribution of bacterial taxa. This suggests that pH and temperature are steering factors in the selection of taxa and supports the notion that communities in lakes with short water turnover times are influenced by the input of bacterial cells from the drainage areas. Within the beta subdivision of the Proteobacteria (Betaproteobacteria), as well as within the divisions Actinobacteria and Verrucomicrobia, different subgroups were associated differently with environmental variables.
利用反向线印迹杂交技术,对北欧15个不同湖泊中15种典型淡水细菌类群的分布情况进行了调查。针对湖泊特征对数据进行的统计评估表明,湖泊的pH值、温度以及理论水文滞留时间与细菌类群分布的变化最为密切相关。这表明pH值和温度是类群选择的主导因素,并支持以下观点:水周转时间短的湖泊中的群落受到来自流域细菌细胞输入的影响。在变形菌门的β亚纲(β-变形菌纲)以及放线菌门和疣微菌门中,不同的亚群与环境变量的关联方式各异。