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October 2022

Sulfate-Reducing Bacteria and Pyritic Sediments in Antarctica

Journal/Book: Reprinted from Science July 21 1961 Vol. 134 No. 3473 Page 190 Copyright (c) 1961 by the American Association for the Advancement of Science. 1961;

Abstract: ELSO S. BARGHOORN Department of Biology Harvard University Cambridge Massachusetts ROBERT L. NICHOLS Department of Geology Tufts University Medford Massachusetts Abstract. Black lacustrine and marine Sediments occur in the McMurdo Sound region of Antarctica. The black color is due to the presence of iron sulfide precipitated by Sulfate-reducing bacteria (Desulfovibrio) in the presence of decaying organic matter of algal origin. Viability of Sulfate-reducing bacteria in the Sediments was demonstrated in the laboratory by culturing in anaerobic liquid media. It is probable that Sulfate-reducing bacteria are widely distributed in Antarctica. ___MH


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