Contrasts between marine and freshwater bacterial community composition: Analyses of communities in Lake George and six other Adirondack lakes

摘要

The bacterial communities of seven freshwater lakes in the Adirondack Mountains of New York state were examined using culture-independent methods. β-Proteobacte- ria 16S rRNA sequences were recovered from all seven lakes and their presence was confirmed by direct DNA hybridiza- tion. The results are consistent with phylogenetic and in situ hybridization-based studies in other freshwater environments, but are significantly different than the results of marine oce- anic studies, where β-Proteobacteria are noticeably absent.