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

被引：0

作者：

Federico M. Lauro

Giulio Bertoloni

Anna Obraztsova

Chiaki Kato

Bradley M. Tebo

Douglas H. Bartlett

机构：

[1] University of California,Center for Marine Biotechnology and Biomedicine, Marine Biology Research Division, Scripps Institution of Oceanography

[2] San Diego,Istituto di Microbiologia

[3] Università di Padova,The DEEPSTAR Group

[4] Japan Marine Science and Technology Center,undefined

来源：

Extremophiles | 2004年 / 8卷

关键词：

Deep sea; Japan Trench; Pressure;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

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.

引用

页码：169 / 173

页数：4