Satoshi Kawaichi

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A novel thermophilic, chemoheterotrophic, Gram-negative-staining, multicellular filamentous bacterium, designated strain 110S(T), was isolated from an iron-rich coastal hydrothermal field in Japan. The isolate is facultatively aerobic and chemoheterotrophic. Phylogenetic analysis using 16S rRNA gene sequences nested strain 110S(T) in a novel class-level(More)
A novel anaerobic, Fe(III)-reducing, hydrogenogenic, carboxydotrophic bacterium, designated strain Ug1(T), was isolated from a volcanic acidic hot spring in southern Kyushu Island, Japan. Cells of the isolate were rod-shaped (1.0-3.0 µm long) and motile due to peritrichous flagella. Strain Ug1(T) grew chemolithoautotrophically on CO (100% in the gas phase)(More)
At deep-sea vent systems, hydrothermal emissions rich in reductive chemicals replace solar energy as fuels to support microbial carbon assimilation. Until recently, all the microbial components at vent systems have been assumed to be fostered by the primary production of chemolithoautotrophs; however, both the laboratory and on-site studies demonstrated(More)
The increasing number of genome sequences of archaea and bacteria show their adaptation to different environmental conditions at the genomic level. Aeropyrum spp. are aerobic and hyperthermophilic archaea. Aeropyrum camini was isolated from a deep-sea hydrothermal vent, and Aeropyrum pernix was isolated from a coastal solfataric vent. To investigate the(More)
A novel thermophilic bacterium, strain KW1(T), was isolated from a coastal hydrothermal field on the Satsuma Peninsula, Kagoshima Prefecture, Japan. The variably Gram-stained cells were motile rods with flagella, did not form spores and proliferated at 52-78 degrees C (optimum, 70 degrees C), pH 5-8 (optimum, pH 7) and 0-4.5 % NaCl (optimum, 1.0 %). The(More)
Physicochemical characteristics and archaeal and bacterial community structures in an iron-rich coastal hydrothermal field, where the temperature of the most active hot spot reaches above 100 °C, were investigated to obtain fundamental information on microbes inhabiting a coastal hydrothermal field. The environmental settings of the coastal hydrothermal(More)
Ardenticatena maritima strain 110S(T) is a filamentous bacterium isolated from an iron-rich coastal hydrothermal field, and it is a unique isolate capable of dissimilatory iron or nitrate reduction among the members of the bacterial phylum Chloroflexi. Here, we report the draft genome sequence comprising 3,569,367 bp, containing 3,355 predicted coding(More)
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