Thermophilic bacterium, Gram-stain-negative, rod-shaped.
Isolated from a neutral to slightly alkaline hot spring in central Japan, Nakabusa hot spring(36 deg 23 min N, 137 deg 45 min E).
Caldimicrobium thiodismutans sp. nov., a sulfur-disproportionating bacterium isolated from a hot spring, and emended description of the genus Caldimicrobium.