| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Deep-sea Micro-organisms Research Group (DEEPSTAR), Japan Marine Science and Technology Center (JAMSTEC), 2--15 Natsushima-cho, Yokosuka 237--0061, Japan
Author for correspondence: Ken Takai. Tel: +81 468 67 3894. Fax: +81 468 66 6364. e-mail: kent{at}jamstec.go.jp
ABSTRACT
A novel extremely thermophilic bacterium was isolated from the world's deepest sea-floor, the Mariana Trench Challenger Deep at a depth of 10897 m. Cells were Gram-reaction variable, non-spore-forming and non-motile rods without flagella. Growth was observed between 50 and 80 °C (optimum: 74--76 °C; 90 min doubling time), pH 5.4 and 9.5 (optimum: pH 7.0-7.5) and 0.5 and 5% sea salts (optimum: 2% sea salts). The isolate was a strictly aerobic heterotroph capable of utilizing as sole energy and carbon source: yeast extract, peptone, cellulose, starch, chitin, casein, Casamino acids, a variety of sugars, carboxylic acids and amino acids. The G+C content of the genomic DNA was 72.5 mol%. Phylogenetic analysis based on 16S rRNA sequences placed this aerobic, high-G+C-content bacterium among the members of the Grampositive, low-G+C-content anaerobic thermophilic bacteria within the Bacillus-Clostridium subphylum. On the basis of the physiological and molecular properties of the new isolate, the name Thermaerobacter marianensis gen. nov., sp. nov. (type strain 7p75aT = JCM 10246T) is proposed.
Key Words: Thermaerobacter marianensis gen. nov. • sp. nov. • thermophile • deep-sea micro-organism
The DDBJ accession number for the 16S rDNA sequence of 7p75aT is AB011495.
This article has been cited by other articles:
|
|
 |
|
  K. Takai, M. Miyazaki, T. Nunoura, H. Hirayama, H. Oida, Y. Furushima, H. Yamamoto, and K. Horikoshi Sulfurivirga caldicuralii gen. nov., sp. nov., a novel microaerobic, thermophilic, thiosulfate-oxidizing chemolithoautotroph, isolated from a shallow marine hydrothermal system occurring in a coral reef, Japan. Int J Syst Evol Microbiol, August 1, 2006; 56(Pt 8): 1921 - 1929. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Tanaka, S. Kawaichi, H. Nishimura, and Y. Sako Thermaerobacter litoralis sp. nov., a strictly aerobic and thermophilic bacterium isolated from a coastal hydrothermal field. Int J Syst Evol Microbiol, July 1, 2006; 56(Pt 7): 1531 - 1534. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Takai, H. Hirayama, T. Nakagawa, Y. Suzuki, K. H. Nealson, and K. Horikoshi Lebetimonas acidiphila gen. nov., sp. nov., a novel thermophilic, acidophilic, hydrogen-oxidizing chemolithoautotroph within the 'Epsilonproteobacteria', isolated from a deep-sea hydrothermal fumarole in the Mariana Arc Int J Syst Evol Microbiol, January 1, 2005; 55(1): 183 - 189. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Takai, H. Hirayama, T. Nakagawa, Y. Suzuki, K. H. Nealson, and K. Horikoshi Thiomicrospira thermophila sp. nov., a novel microaerobic, thermotolerant, sulfur-oxidizing chemolithomixotroph isolated from a deep-sea hydrothermal fumarole in the TOTO caldera, Mariana Arc, Western Pacific Int J Syst Evol Microbiol, November 1, 2004; 54(6): 2325 - 2333. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Takai, K. H. Nealson, and K. Horikoshi Methanotorris formicicus sp. nov., a novel extremely thermophilic, methane-producing archaeon isolated from a black smoker chimney in the Central Indian Ridge Int J Syst Evol Microbiol, July 1, 2004; 54(4): 1095 - 1100. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Takai, K. H. Nealson, and K. Horikoshi Hydrogenimonas thermophila gen. nov., sp. nov., a novel thermophilic, hydrogen-oxidizing chemolithoautotroph within the {varepsilon}-Proteobacteria, isolated from a black smoker in a Central Indian Ridge hydrothermal field Int J Syst Evol Microbiol, January 1, 2004; 54(1): 25 - 32. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Takai, S. Nakagawa, Y. Sako, and K. Horikoshi Balnearium lithotrophicum gen. nov., sp. nov., a novel thermophilic, strictly anaerobic, hydrogen-oxidizing chemolithoautotroph isolated from a black smoker chimney in the Suiyo Seamount hydrothermal system Int J Syst Evol Microbiol, November 1, 2003; 53(6): 1947 - 1954. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Takai, H. Kobayashi, K. H. Nealson, and K. Horikoshi Deferribacter desulfuricans sp. nov., a novel sulfur-, nitrate- and arsenate-reducing thermophile isolated from a deep-sea hydrothermal vent Int J Syst Evol Microbiol, May 1, 2003; 53(3): 839 - 846. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. Takai, T. Komatsu, F. Inagaki, and K. Horikoshi Distribution of Archaea in a Black Smoker Chimney Structure Appl. Envir. Microbiol., August 1, 2001; 67(8): 3618 - 3629. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Takai and K. Horikoshi Rapid Detection and Quantification of Members of the Archaeal Community by Quantitative PCR Using Fluorogenic Probes Appl. Envir. Microbiol., November 1, 2000; 66(11): 5066 - 5072. [Abstract] [Full Text]
|
|
|
|
 |
|
 K. Takai and K. Horikoshi Genetic Diversity of Archaea in Deep-Sea Hydrothermal Vent Environments Genetics, August 1, 1999; 152(4): 1285 - 1297. [Abstract] [Full Text]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| INT J SYST EVOL MICROBIOL | MICROBIOLOGY | J GEN VIROL |
| J MED MICROBIOL | ALL SGM JOURNALS | |
