| methanobacterium mobile sp. nov. and methanobacterium flexile sp. nov., isolated from the lake sediment of qaidam basin, china. | two mesophilic methanogen strains ts-2(t) and gh(t) were isolated from the sediments of tuosu lake and gahai lake in qaidam basin, qinghai province, china. both strains were rod-shaped (0.3-0.5-2-5 µm) with blunt rounded ends and stained gram positive. strain ts-2(t) was motile with 1-2 polar flagella and used only h(2)/co(2) for growth and methanogenesis, while strain gh(t) was non-motile and used both h(2)/co(2) and formate. strain gh(t) displayed a variable cell arrangement upon substrates, i ... | 2011 | 21278411 |