The genome of Desulfotalea psychrophila, a sulfate-reducing bacterium from permanently cold arctic sediments.
Desulfotalea psychrophila is a marine sulfate-reducing δ-proteobacterium that is able to grow at in situ temperatures below 0°C. As abundant members of the microbial community in permanently cold marine sediments, D. psychrophila-like bacteria contribute to the global cycles of carbon and sulfur. He...
| Published in: | Environmental Microbiology |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
2004
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| Subjects: | |
| Online Access: | https://push-zb.helmholtz-muenchen.de/frontdoor.php?source_opus=4102 https://doi.org/10.1111/j.1462-2920.2004.00665.x |
| Summary: | Desulfotalea psychrophila is a marine sulfate-reducing δ-proteobacterium that is able to grow at in situ temperatures below 0°C. As abundant members of the microbial community in permanently cold marine sediments, D. psychrophila-like bacteria contribute to the global cycles of carbon and sulfur. Here, we describe the genome sequence of D. psychrophila strain LSv54, which consists of a 3523383bp circular chromosome with 3118 predicted genes and two plasmids of 121586bp and 14663bp. Analysis of the genome gave insight into the metabolic properties of the organism, e.g. the presence of TRAP-T systems as a major route for the uptake of C4-dicarboxylates, the unexpected presence of genes from the TCA cycle, a TAT secretion system, the lack of a β-oxidation complex and typical Desulfovibrio cytochromes, such as c553, c3 and ncc. D. psychrophila encodes more than 30 two-component regulatory systems, including a new Ntr subcluster of hybrid kinases, nine putative cold shock proteins and nine potentially cold shock-inducible proteins. A comparison of D. psychrophila's genome features with those of the only other published genome from a sulfate reducer, the hyperthermophilic archaeon Archaeoglobus fulgidus, revealed many striking differences, but only a few shared features. |
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