Open AccessBacteriological studies on the sulfur cycle in the anaerobic part of the hypolimnion and in the surface sediments of rotsee in Switzerland scientific report of the advanced course of microbial ecology, sponsored by FEMS and the Swiss society for Microbiology, held at Kastanienbaum, Switzerland, 12 September–9 October 1982
Author(s) -
Kohler H.P.,
Åhring B.,
Albella C.,
Ingvorsen K.,
Keweloh H.,
Laczkó E.,
Stupperich E.,
Tomei F.
Publication year - 1984
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1984.tb00322.x
Subject(s) - sulfate , sulfur , sulfur cycle , hypolimnion , sulfide , environmental chemistry , sediment , ecology , dimethyl sulfide , phototroph , anaerobic exercise , microbial ecology , photosynthesis , environmental science , sulfate reducing bacteria , chemistry , biology , botany , bacteria , paleontology , nutrient , eutrophication , physiology , organic chemistry
Abstract The microbial ecology of the sulfur cycle in the anaerobic part of Rotsee (Switzerland) was studied. Almost all the sulfate reduction took place at the sediment surface at a rate of 2 mmol SO 2− 4 reduced m −2 day −1 . Approx. 10 4 sulfate reducers per ml were present in the surface sediments. The sulfide produced was phototrophically consumed mainly by Thiopedia rosea, Lamprocystis roseopersicina and ‘ Pelochromatium roseum ’ consortia. Thiopedia rosea migrated diurnally about one meter. Bacterial photosynthesis was limited by light and sulfide rather than by temperature.