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PMID: 15064983 Published · ppublish English Journal Article Research Support, U.S. Gov't, Non-P.H.S.

Pressure effects on Clostridium strains isolated from a cold deep-sea environment.

Extremophiles : life under extreme conditions ·Vol. 8 ·No. 2 ·2004-04-00 ·Pages 169-73

Lauro FM, Bertoloni G, Obraztsova A, Kato C, Tebo BM, Bartlett DH

Abstract

Three Clostridium strains were isolated from deep-sea sediments collected at a depth of 6.3-7.3 km in the Japan Trench. Physiological characterization and 16S rDNA analysis revealed that the three isolates were all closely related to Clostridium bifermentans. The spores of all three isolates were resistant to inactivation at high pressure and low temperature. However, despite the fact that the vegetative cells were halotolerant and eurythermal they did not appear to be adapted for growth or viability under the conditions prevailing in the deep-sea sediments from which they were obtained. The results suggest that the isolates had survived as spores in the deep-sea sediments and that the marine benthos could be a source of clostridia originating in other environments.

MeSH Terms
Clostridium/physiology Cold Temperature Japan Phylogeny Pressure Seawater/microbiology
Authors & Affiliations
6 authors, click to expand affiliations / ORCID
Lauro Federico M
Center for Marine Biotechnology and Biomedicine, Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0202, USA.
Bertoloni Giulio
Obraztsova Anna
Kato Chiaki
Tebo Bradley M
Bartlett Douglas H
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Article Info
Journal
Extremophiles : life under extreme conditions
Abbr.
Extremophiles
ISSN
1431-0651
DOI
10.1007/s00792-003-0367-y
Published
2004-04-00
Epub
2003-00-19
Pages
169-73
Language
English
Region
Germany
NLM ID
9706854
Subset
IM
External Links
PubMed source DOI: 10.1007/s00792-003-0367-y View journal details
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