Identification of Major Planktonic Sulfur Oxidizers in Stratified Freshwater Lake

• DOI: 10.1371/journal.pone.0093877
• Publication Date: 2014-04-02T22:58:34Z
• Authors: Hisaya Kojima; Tomohiro Watanabe; Tomoya Iwata; Manabu Fukui
• Keywords: Betaproteobacteria; Bacterioplankton; Library; Sulfur Metabolism; Lake ecosystem; Hydrilla

Planktonic sulfur oxidizers are important constituents of ecosystems in stratified water bodies, and contribute to sulfide detoxification. In contrast marine environments, taxonomic identities major planktonic freshwater lakes still remain largely unknown. Bacterioplankton community structure was analyzed a lake, Lake Mizugaki Japan. the clone libraries 16S rRNA gene, clones very closely related oxidizer isolated from this Sulfuritalea hydrogenivorans, were detected deep anoxic water, occupied up 12.5% each library different depth. Assemblages specifically by constructing genes involved oxidation, aprA, dsrA, soxB sqr. libraries, betaproteobacteria with high frequencies, including close relatives hydrogenivorans.