Identification of a Thermoacidophilic Sulfolobus sp. Isolated from a Hot Spring in Tengchong Rehai
- VernacularTitle:腾冲热海一株嗜酸热硫化叶菌的分离与鉴定
- Author:
Bo CHEN
;
Yun-Lin WEI
;
Shen-Rong JING
;
Xiu-Ling JI
;
Yue-Qing LU
;
Lian-Bing LIN
;
- Publication Type:Journal Article
- Keywords:
Thermoacidophilic archaeon, Sulfolobus, Phylogenetic analysis, Identification
- From:
Microbiology
2008;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
An extremely thermoacidophilic isolate K4-1 was obtained from an acidic hot spring in Teng- chong Rehai, Yunnan province. Morphology, growth characteristics, utilization of carbon compounds, en- ergy sources and 16S rRNA gene sequence of K4-1 were studied. Cells of K4-1 are irregular cocci with monotrichous flagella. The strain grew aerobically in either a lithotrophic or a heterotrophic mode. Growth on elemental sulfur occurred through oxidation of sulfur. It grew optimally at 75?C and pH 3.5. On the basis of 16S rRNA gene sequence similarity, strain K4-1 was shown to belong to genus Sulfolobus, being related to the type strains of genus Sulfolobus (86.6%~94.3% similarity), and being most closely related to strain Sulfolobus tengchongensis RT8-4 (98.9% similarity). The GenBank accession number of strain K4-1 16S rRNA gene sequence is EU729124.
