1887

Abstract

A rod (0.3-0.4 micron x 3-10 microns) to filamentous (up to 40 microns) non-motile methanogenic bacterium, designated strain FPiT (T = type strain), was isolated from ricefield soil in the Philippines. The strain uses H2 + CO2 or formate for growth and produces CH4. Optimum growth temperature is 40 degrees C; no growth is observed at 15 degrees C or 45 degrees C. Optimum pH for growth is 7; no growth is observed at pH 5.5 or 9.0. Strain FPiT is halotolerant and grows at NaCl concentrations of 0-25 g l-1. The G + C content of its DNA is 31 mol%. Based on 16S rRNA gene sequence analysis, the isolate was identified as a new species of the genus Methanobacterium: Methanobacterium oryzae sp. nov. The type strain is FPiT (= DSM 11106T).

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/content/journal/ijsem/10.1099/00207713-50-2-525
2000-03-01
2019-11-14
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http://instance.metastore.ingenta.com/content/journal/ijsem/10.1099/00207713-50-2-525
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