title: Diversity of sulfate-reducing bacteria in oxic and anoxic regions of a microbial mat characterized by comparative analysis of dissimilatory sulfite reductase genes.
abstract: Sequence analysis of genes encoding dissimilatory sulfite reductase (DSR) was used to identify sulfate-reducing bacteria in a hypersaline microbial mat and to evaluate their distribution in relation to levels of oxygen. The most highly diverse DSR sequences, most related to those of the Desulfonema-like organisms within the delta-proteobacteria, were recovered from oxic regions of the mat. This observation extends those of previous studies by us and others associating Desulfonema-like organisms with oxic habitats.
authors.affiliation: Department of Civil Engineering, Northwestern University, Evanston, Illinois 60208-3109, USA.
authors.forename: D
authors.initials: D
authors.lastname: Minz
authors.forename: J L
authors.initials: JL
authors.lastname: Flax
authors.forename: S J
authors.initials: SJ
authors.lastname: Green
authors.forename: G
authors.initials: G
authors.lastname: Muyzer
authors.forename: Y
authors.initials: Y
authors.lastname: Cohen
authors.forename: M
authors.initials: M
authors.lastname: Wagner
authors.forename: B E
authors.initials: BE
authors.lastname: Rittmann
authors.forename: D A
authors.initials: DA
authors.lastname: Stahl
mesh_terms: D000693:Anaerobiosis; D001483:Base Sequence; D003001:Cloning, Molecular; D004269:DNA, Bacterial / Q000032:analysis; D020564:Deltaproteobacteria / Q000201:enzymology*; D008969:Molecular Sequence Data; D010084:Oxidation-Reduction; D050862:Oxidoreductases Acting on Sulfur Group Donors / Q000235:genetics*; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D013431:Sulfates / Q000378:metabolism*; D014871:Water Microbiology
chemical_list: D004269:DNA, Bacterial; D013431:Sulfates; D050862:Oxidoreductases Acting on Sulfur Group Donors