Abstract
In time course experiments, bacterial community compositions were compared between a sulfidogenic and two nonsulfidogenic Cr(VI)-reducing consortia enriched from metal-contaminated sediments. The consortia were subjected to 0 and 0.85 mM or 1.35 mM Cr(VI), and Cr(VI) reduction, growth, and denaturing gradient gel electrophoresis profiles of PCR products of small-subunit (16S) ribosomal genes were compared. Results showed that although Cr(VI) was completely reduced by the three consortia, Cr(VI) inhibited cell growth, with sulfate-reducing bacteria being particularly sensitive to Cr(VI) toxicity relative to other bacteria in the consortia.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1847-1853 |
| Number of pages | 7 |
| Journal | Applied and Environmental Microbiology |
| Volume | 69 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 1 2003 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Environmental Science(all)
- Biotechnology
- Microbiology
Cite this
Cr(VI) reduction by sulfidogenic and nonsulfidogenic microbial consortia. / Arias, Y. Meriah; Tebo, Bradley.
In: Applied and Environmental Microbiology, Vol. 69, No. 3, 01.03.2003, p. 1847-1853.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cr(VI) reduction by sulfidogenic and nonsulfidogenic microbial consortia
AU - Arias, Y. Meriah
AU - Tebo, Bradley
PY - 2003/3/1
Y1 - 2003/3/1
N2 - In time course experiments, bacterial community compositions were compared between a sulfidogenic and two nonsulfidogenic Cr(VI)-reducing consortia enriched from metal-contaminated sediments. The consortia were subjected to 0 and 0.85 mM or 1.35 mM Cr(VI), and Cr(VI) reduction, growth, and denaturing gradient gel electrophoresis profiles of PCR products of small-subunit (16S) ribosomal genes were compared. Results showed that although Cr(VI) was completely reduced by the three consortia, Cr(VI) inhibited cell growth, with sulfate-reducing bacteria being particularly sensitive to Cr(VI) toxicity relative to other bacteria in the consortia.
AB - In time course experiments, bacterial community compositions were compared between a sulfidogenic and two nonsulfidogenic Cr(VI)-reducing consortia enriched from metal-contaminated sediments. The consortia were subjected to 0 and 0.85 mM or 1.35 mM Cr(VI), and Cr(VI) reduction, growth, and denaturing gradient gel electrophoresis profiles of PCR products of small-subunit (16S) ribosomal genes were compared. Results showed that although Cr(VI) was completely reduced by the three consortia, Cr(VI) inhibited cell growth, with sulfate-reducing bacteria being particularly sensitive to Cr(VI) toxicity relative to other bacteria in the consortia.
UR - http://www.scopus.com/inward/record.url?scp=0037338540&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037338540&partnerID=8YFLogxK
U2 - 10.1128/AEM.69.3.1847-1853.2003
DO - 10.1128/AEM.69.3.1847-1853.2003
M3 - Article
C2 - 12620881
AN - SCOPUS:0037338540
VL - 69
SP - 1847
EP - 1853
JO - Applied and Environmental Microbiology
JF - Applied and Environmental Microbiology
SN - 0099-2240
IS - 3
ER -