PMID- 19096460 OWN - NLM STAT- MEDLINE DCOM- 20090402 LR - 20081219 IS - 0008-4166 (Print) IS - 0008-4166 (Linking) VI - 54 IP - 12 DP - 2008 Dec TI - Spatial distribution of bacterial communities in sediment of a eutrophic lake revealed by denaturing gradient gel electrophoresis and multivariate analysis. PG - 1053-63 LID - 10.1139/W08-098 [doi] AB - Bacterial community structure and the effects of several environmental factors on the microbial community distribution were investigated in the sediment of the eutrophic Lake Xuanwu. Profiles of bacterial communities were generated using denaturing gradient gel electrophoresis (DGGE), and the results were interpreted with multivariate statistical analysis. Five major variables in sediment were examined in a principal component analysis, which indicates notable differences of physicochemical parameters among different sites of the lake. To assess changes in the genetic diversity of bacterial communities of different sampling sites, DGGE band patterns were analyzed by multidimensional scaling analysis, which indicated that sampling sites having similar environmental characteristics also have the similar microbial communities. Canonical correspondence analysis demonstrated that pH and redox potential had significant effects on the bacterial community composition in the sediments. Analysis of DNA sequences revealed that the dominant bacterial groups in Lake Xuanwu belonged to Proteobacteria, Actinobacteria, Verrucomicrobia, and Nitrospirae, which are commonly isolated from freshwater ecosystems. FAU - Zeng, Jin AU - Zeng J AD - State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China. FAU - Yang, Liu-Yan AU - Yang LY FAU - Liang, Yi AU - Liang Y FAU - Li, Jia-Yun AU - Li JY FAU - Xiao, Lin AU - Xiao L FAU - Jiang, Li-Juan AU - Jiang LJ FAU - Zhao, Da-Yong AU - Zhao DY LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Canada TA - Can J Microbiol JT - Canadian journal of microbiology JID - 0372707 RN - 0 (DNA, Bacterial) SB - IM MH - Actinobacteria/classification/genetics/*isolation & purification MH - Alphaproteobacteria/classification/genetics/*isolation & purification MH - Betaproteobacteria/classification/genetics/*isolation & purification MH - China MH - Chlamydiales/classification/genetics/*isolation & purification MH - DNA, Bacterial/classification/genetics/*isolation & purification MH - Electrophoresis, Polyacrylamide Gel MH - Eutrophication MH - *Fresh Water MH - Genetic Variation MH - Geologic Sediments/*analysis/*microbiology MH - Multivariate Analysis MH - Nucleic Acid Denaturation MH - Phylogeny MH - Sequence Analysis, DNA MH - *Water Microbiology EDAT- 2008/12/20 09:00 MHDA- 2009/04/03 09:00 CRDT- 2008/12/20 09:00 PHST- 2008/12/20 09:00 [entrez] PHST- 2008/12/20 09:00 [pubmed] PHST- 2009/04/03 09:00 [medline] AID - w08-098 [pii] AID - 10.1139/W08-098 [doi] PST - ppublish SO - Can J Microbiol. 2008 Dec;54(12):1053-63. doi: 10.1139/W08-098.