This study isolated a thermophilic sulfate-reducing Thermodesulfovibrio bacterium from a Japanese terrestrial hot spring and demonstrated nitrogen-fixing activity under the tested growth conditions. The work expands understanding of nitrogen metabolism in thermophilic anaerobes and provides an experimentally characterized strain for ecological and physiological investigation.
Countstar Connection
SYTO9-stained bacterial cells were counted with the Countstar Mira FL Pro to quantify cell abundance during cultivation and nitrogen-fixation experiments.