Pyrococcus glycovorans sp nov., a hyperthermophilic archaeon isolated from the East Pacific Rise

被引:31
作者
Barbier, G
Godfroy, A
Meunier, JR
Quérellou, J
Cambon, MA
Lesongeur, F
Grimont, PAD
Raguénès, G
机构
[1] IFREMER, Ctr Brest, Lab Caracterisat Microorganismes Marins, F-29280 Plouzane, France
[2] Inst Pasteur, Unite Enterobacteries, F-75724 Paris 15, France
来源
INTERNATIONAL JOURNAL OF SYSTEMATIC BACTERIOLOGY | 1999年 / 49卷
关键词
archaea; Pyrococcus; hyperthermophile; deep-sea; hydrothermal vent;
D O I
10.1099/00207713-49-4-1829
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
A hyperthermophilic archaeon, strain AL585(T), was isolated from a deep-sea hydrothermal vent located on the East Pacific Rise at latitude 13 degrees N and a depth of 2650 m. The isolate was a strictly anaerobic coccus with a mean cell diameter of 1 mu m. The optimum temperature, ph and concentration of sea salt for growth were 95 degrees C, 7.5 and 30 g l(-1). Under these conditions, the doubling time and cell yield were 0.5 h and 5 x 10(8) cells ml(-1). Strain AL585(T) grew preferentially in media containing complex proteinaceous carbon sources, glucose and elemental sulfur. The G+C content of the DNA was 47 mol%. Sequencing of the 16S rDNA gene showed that strain AL585(T) belonged to the genus Pyrococcus and was probably a new species. This was confirmed by total DNA hybridization. Consequently, this strain is described as a new species, Pyrococcus glycovorans sp. nov.
引用
收藏
页码:1829 / 1837
页数:9
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