Abstract:
:The genus of Marinobacter is one of the most ubiquitous in the global oceans and assumed to significantly impact various biogeochemical cycles. The genome structure and content of Marinobacter aquaeolei VT8 was analyzed and compared with those from other organisms with diverse adaptive strategies. Here, we report the many "opportunitrophic" genetic characteristics and strategies that M. aquaeolei has adopted to promote survival under various environmental conditions. Genome analysis revealed its metabolic potential to utilize oxygen and nitrate as terminal electron acceptors, iron as an electron donor, and urea, phosphonate, and various hydrocarbons as alternative N, P, and C sources, respectively. Miscellaneous sensory and defense mechanisms, apparently acquired via horizontal gene transfer, are involved in the perception of environmental fluctuations and antibiotic, phage, toxin, and heavy metal resistance, enabling survival under adverse conditions, such as oil-polluted water. Multiple putative integrases, transposases, and plasmids appear to have introduced additional metabolic potential, such as phosphonate degradation. The genomic potential of M. aquaeolei and its similarity to other opportunitrophs are consistent with its cosmopolitan occurrence in diverse environments and highly variable lifestyles.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Singer E,Webb EA,Nelson WC,Heidelberg JF,Ivanova N,Pati A,Edwards KJdoi
10.1128/AEM.01866-10subject
Has Abstractpub_date
2011-04-01 00:00:00pages
2763-71issue
8eissn
0099-2240issn
1098-5336pii
AEM.01866-10journal_volume
77pub_type
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journal_title:Applied and environmental microbiology
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journal_title:Applied and environmental microbiology
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doi:10.1128/AEM.60.4.1137-1145.1994
更新日期:1994-04-01 00:00:00
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journal_title:Applied and environmental microbiology
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2007-05-01 00:00:00
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pub_type: 杂志文章
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更新日期:2004-07-01 00:00:00