אסיף מאגר המחקר החקלאי

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

Year:

1999

Source of publication :

Authors :

Volume :

65

Co-Authors:

Minz, D., Department of Civil Engineering, Northwestern University, Evanston, IL 60208-3109, United States, Volcani Research Center, Soil Microbiology, Bet-Dagan, 50-250, Israel
Flax, J.L., Department of Civil Engineering, Northwestern University, Evanston, IL 60208-3109, United States
Green, S.J., Department of Civil Engineering, Northwestern University, Evanston, IL 60208-3109, United States
Muyzer, G., Max-Planck-Inst. for Mar. Microbiol., D-28359 Bremen, Germany, Netherlands Inst. for Sea Research, Den Burg, Netherlands
Cohen, Y., Moshe Shilo Ctr. Mar. B., Alexander Silberman Inst. Life Sci., Hebrew University of Jerusalem, Jerusalem, Israel
Wagner, M., TU München, Lehrstuhl für Mikrobiologie, D-80290 Munich, Germany
Rittmann, B.E., Department of Civil Engineering, Northwestern University, Evanston, IL 60208-3109, United States
Stahl, D.A., Department of Civil Engineering, Northwestern University, Evanston, IL 60208-3109, United States

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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 δ-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.

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