streptomyces thermoautotrophicus streptomyces thermoautotrophicus streptomyces thermoautotrophicus is a thermophilic bacterium species from the genus of streptomyces. streptomyces thermoautotrophicus was claimed to be diazotrophic and to produce a new kind of nitrogenase, but new evidence suggests that it can't fix n2 gas. streptomyces thermoautotrophicus scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: streptomycetales family: streptomycetaceae genus: streptomyces species: s. thermoautotrophicus binomial name streptomyces thermoautotrophicusgadkari et al. 1991 type strain dsm 41605, gadkari ubt1, lmg 19855, nbrc 101056, ubt1