| acidisoma tundrae gen. nov., sp. nov. and acidisoma sibiricum sp. nov., two acidophilic, psychrotolerant members of the alphaproteobacteria from acidic northern wetlands. | three obligately aerobic, heterotrophic bacteria, designated strains wm1t, tpb606t and tpb621, were isolated from acidic sphagnum-dominated tundra and siberian wetlands in russia. cells of these isolates were gram-negative, non-motile coccobacilli that occurred singly, in pairs or in chains, and were covered by large capsules. the novel strains were moderately acidophilic and psychrotolerant organisms capable of growth at ph 3.0-7.6 and 2-30 degrees c. cells contained numerous intracellular poly ... | 2009 | 19620354 |