Diversity of sulfate-reducing bacteria in oxic and anoxic regions of a microbial mat characterized by comparative analysis of dissimilatory sulfite reductase genes

Journal Article · Fri Oct 01 00:00:00 EDT 1999 · Applied and Environmental Microbiology

OSTI ID:20001038

Minz, D; Flax, J L; Green, S J; Muyzer, G; Cohen, Y; Wagner, M; Rittmann, B E; Stahl, D A

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 the authors and others associating Desulfonema-like organisms with oxic habitats.

• Research Organization: Northwestern Univ., Evanston, IL (US)
• OSTI ID: 20001038
• Journal Information: Applied and Environmental Microbiology, Vol. 65, Issue 10; Other Information: PBD: Oct 1999; ISSN 0099-2240
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
WATER POLLUTION
SULFUR CYCLE
SULFATES
SULFATE-REDUCING BACTERIA
ANOXIA
SPECIES DIVERSITY
OXIDOREDUCTASES
GENES