气候变化领域集成服务门户(CCPortal): Growth of Carnobacterium spp. from permafrost under low pressure; temperature; and anoxic atmosphere has implications for Earth microbes on Mars

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DOI	10.1073/pnas.1209793110
	Growth of Carnobacterium spp. from permafrost under low pressure; temperature; and anoxic atmosphere has implications for Earth microbes on Mars
	Nicholson W.L.; Krivushin K.; Gilichinsky D.; Schuerger A.C.
发表日期	2013
ISSN	0027-8424
起始页码	666
结束页码	671
卷号	110 期号:2
英文摘要	The ability of terrestrial microorganisms to grow in the near-surface environment of Mars is of importance to the search for life and protection of that planet from forward contamination by human and robotic exploration. Because most water on present-day Mars is frozen in the regolith, permafrosts are considered to be terrestrial analogs of the martian subsurface environment. Six bacterial isolates were obtained from a permafrost borehole in northeastern Siberia capable of growth under conditions of low temperature (0 °C), low pressure (7 mbar), and a CO2-enriched anoxic atmosphere. By 16S ribosomal DNA analysis, all six permafrost isolates were identified as species of the genus Carnobacterium, most closely related to C. inhibens (five isolates) and C. viridans (one isolate). Quantitative growth assays demonstrated that the six permafrost isolates, as well as nine type species of Carnobacterium (C. alterfunditum , C. divergens, C. funditum, C. gallinarum, C. inhibens, C. maltaromaticum, C. mobile, C. pleistocenium, and C. viridans) were all capable of growth under cold, low-pressure, anoxic conditions, thus extending the low-pressure extreme at which life can function.
英文关键词	Astrobiology; Planetary protection
语种	英语
scopus关键词	bacterial DNA; DNA 16S; anoxic atmosphere; article; astronomy; atmosphere; bacterial growth; bacterial strain; bacterium identification; bacterium isolate; Carnobacterium; hypobarism; microorganism; nonhuman; nucleotide sequence; permafrost; phylogenetic tree; priority journal; temperature; Anaerobiosis; Atmospheric Pressure; Base Sequence; Carnobacterium; Cluster Analysis; DNA, Ribosomal; Exobiology; Extraterrestrial Environment; Mars; Molecular Sequence Data; Phylogeny; Sequence Analysis, DNA; Siberia; Soil Microbiology; Species Specificity; Temperature; Bacteria (microorganisms); Carnobacterium; Carnobacterium alterfunditum; Carnobacterium divergens; Carnobacterium funditum; Carnobacterium gallinarum; Carnobacterium inhibens; Carnobacterium maltaromaticum; Carnobacterium mobile; Carnobacterium pleistocenium; Carnobacterium viridans
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158996
作者单位	Nicholson, W.L., Department of Microbiology and Cell Science, University of Florida, Merritt Island, FL 32953, United States; Krivushin, K., Institute of Physicochemical and Biological Problems in Soil Science, Russian Academy of Sciences, Pushchino 142290 Moscow, Russian Federation; Gilichinsky, D., Institute of Physicochemical and Biological Problems in Soil Science, Russian Academy of Sciences, Pushchino 142290 Moscow, Russian Federation; Schuerger, A.C., Department of Plant Pathology, Space Life Sciences Laboratory, University of Florida, Merritt Island, FL 32953, United States
推荐引用方式 GB/T 7714	Nicholson W.L.,Krivushin K.,Gilichinsky D.,et al. Growth of Carnobacterium spp. from permafrost under low pressure; temperature; and anoxic atmosphere has implications for Earth microbes on Mars[J],2013,110(2).
APA	Nicholson W.L.,Krivushin K.,Gilichinsky D.,&Schuerger A.C..(2013).Growth of Carnobacterium spp. from permafrost under low pressure; temperature; and anoxic atmosphere has implications for Earth microbes on Mars.Proceedings of the National Academy of Sciences of the United States of America,110(2).
MLA	Nicholson W.L.,et al."Growth of Carnobacterium spp. from permafrost under low pressure; temperature; and anoxic atmosphere has implications for Earth microbes on Mars".Proceedings of the National Academy of Sciences of the United States of America 110.2(2013).