steroidobacter agariperforans steroidobacter agariperforans steroidobacter agariperforans is a gram-negative, aerobic, non-spore-forming and non-motile bacterium from the genus of steroidobacter. steroidobacter agariperforans scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: nevskiales family: steroidobacteraceae genus: steroidobacter species: s. agariperforans binomial name steroidobacter agariperforansssakai et al. 2014 type strain jcm 18477, kctc 32107, strain ka5-b