Impact of Bacterial NO 3 − Transport on Sediment Biogeochemistry
Open Access
- 1 November 2005
- journal article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 71 (11) , 7575-7577
- https://doi.org/10.1128/aem.71.11.7575-7577.2005
Abstract
Experiments demonstrated that Beggiatoa could induce a H 2 S-depleted suboxic zone of more than 10 mm in marine sediments and cause a divergence in sediment NO 3 − reduction from denitrification to dissimilatory NO 3 − reduction to ammonium. pH, O 2 , and H 2 S profiles indicated that the bacteria oxidized H 2 S with NO 3 − and transported S 0 to the sediment surface for aerobic oxidation.Keywords
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