NDLI: Methanogenium frigidum sp. nov., a psychrophilic, H2-using methanogen from Ace Lake, Antarctica.

Content Provider	Semantic Scholar
Author	Franzmann, P. D. Liu, Yongchun Balkwill, David L. Aldrich, Henry C. Macario, Everly Conway De Boone, David R.
Copyright Year	1997
Abstract	Methanogenium frigidum sp. nov. was isolated from the perennially cold, anoxic hypolimnion of Ace Lake in the Vesfold Hills of Antarctica. The cells were psychrophilic, exhibiting most rapid growth at 15 degrees C and no growth at temperatures above 18 to 20 degrees C. The cells were irregular, nonmotile coccoids (diameter, 1.2 to 2.5 microns) that occurred singly and grew by CO2 reduction by using H2 as a reductant. Formate could replace H2, but growth was slower. Acetate, methanol, and trimethylamine were not catabolized. Cells grew with acetate as the only organic compounds in the culture medium, but growth was much faster in medium also supplemented with peptones and yeast extract. The cells were slightly halophilic; good growth occurred in medium supplemented with 350 to 600 mM Na+, but no growth occurred with 100 or 850 mM Na+. The pH range for growth was 6.5 to 7.9; no growth occurred at pH 6.0 or 8.5. Growth was slow (maximum specific growth rate, 0.24 day-1; doubling time, 2.9 days). This is the first report of a psychrophilic methanogen growing by CO2 reduction.
File Format	PDF HTM / HTML
DOI	10.1099/00207713-47-4-1068
PubMed reference number	9336907
Journal	Medline
Volume Number	47
Issue Number	4
Alternate Webpage(s)	http://www.microbiologyresearch.org/docserver/fulltext/ijsem/47/4/ijs-47-4-1068.pdf?accname=guest&checksum=EB24344F132430C5172DA503484E2D23&expires=1544826366&id=id
Alternate Webpage(s)	https://www.microbiologyresearch.org/docserver/fulltext/ijsem/47/4/ijs-47-4-1068.pdf?accname=guest&checksum=3291246611F3E24F56A60912B450BA47&expires=1555609236&id=id
Alternate Webpage(s)	https://www.microbiologyresearch.org/docserver/fulltext/ijsem/47/4/ijs-47-4-1068.pdf?accname=guest&checksum=49D26A0B4AC3C6CD2C9735ABB230A301&expires=1553113188&id=id
Alternate Webpage(s)	https://www.microbiologyresearch.org/docserver/fulltext/ijsem/47/4/ijs-47-4-1068.pdf?accname=guest&checksum=CE060ACF1D1BA1BDAFC3E94CA12D01D3&expires=1552540940&id=id
Alternate Webpage(s)	https://doi.org/10.1099/00207713-47-4-1068
Journal	International journal of systematic bacteriology
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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