| methanolinea mesophila, sp. nov., a hydrogenotrophic methanogen isolated from a rice field in taiwan, and proposal of the new archaeal family methanoregulaceae fam. nov. within the order methanomicrobiales. | a novel mesophilic, hydrogenotrophic methanogen, designated strain tnr(t), was isolated from an anaerobic, propionate-degradation enrichment culture that was originally established from a rice field soil in taiwan. cells were non-motile rod with 2.0-6.5 -ám long by 0.3 -ám wide. filamentous (up to about 100 -ám) and coccoid (about 1 -ám in diameter) cells were also observed in cultures at the late-exponential phase of growth. strain tnr(t) grew at 20-40 -¦c (optimally at 37 -¦c), at ph 6.5-7.4 ( ... | 2011 | 21841010 |