Journal
ARCHIVES OF MICROBIOLOGY
Volume 192, Issue 10, Pages 811-819Publisher
SPRINGER
DOI: 10.1007/s00203-010-0611-7
Keywords
Kosmotoga; Thermococcoides; Thermotogales; Hydrothermal; Thermophile; Anaerobe
Categories
Funding
- Ministry of Education, Culture, Sports, Science & Technology of Japan [18658135]
- Grants-in-Aid for Scientific Research [18658135] Funding Source: KAKEN
Ask authors/readers for more resources
A novel thermophilic and sulfur-reducing bacterium, strain S304(T), was isolated from the Taketomi submarine hot spring shallow hydrothermal field located at southern part of the Yaeyama Archipelago, Japan. The cells were non-motile short thick rods or oval cocci 1.1-2.7 mu m in length and 1.1-1.9 mu m in width. Strain S304(T) was an obligately anaerobic heterotroph and sulfur reduction stimulates growth. Growth was observed between 50-65A degrees C (optimum 60A degrees C), pH 6.2-8.0 (optimum pH 7.1), 1.0-6.0% NaCl concentration (optimum 3.0%). The fatty acid composition was C-16:0 (71.4%), C-18:0 (20.9%) and C-18:1 (7.7%). The G + C content of genomic DNA was 40.8 mol%. The 16S rRNA gene sequence analysis indicated that strain S304(T) belonged to the genus Kosmotoga. Based on physiological and phylogenetic features of a new isolate, we propose new species in the genus Kosmotoga: the type strain of Kosmotoga arenicorallina sp. nov is S304(T) (=JCM 15790(T) = DSM22549(T)). Thermococcoides shengliensis 2SM-2(T) is phylogenetically associated with Kosmotoga olearia 14.5.1(T). Based on the phylogenetic relationship between Thermococcoides shengliensis 2SM-2(T) and Kosmotoga olearia 14.5.1(T), we propose the reclassification of Thermococcoides shengliensis as Kosmotoga shengliensis comb. nov. (type strain 2SM-2(T)). In addition, an emended description of the genus Kosmotoga is proposed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available