humibacillus xanthopallidus humibacillus xanthopallidus humibacillus xanthopallidus is a species of gram positive, nonmotile, non-sporeforming bacteria. the bacteria are strictly aerobic and mesophilic. cells of the genus are irregular rods. humibacillus xanthopallidus, was originally isolated from both a paddy field in saitama prefecture, japan and from a sediment collected from lake jusanko, aomori prefecture, japan. humibacillus xanthopallidus scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: intrasporangiaceae genus: humibacilluskageyama et al. 2008 species: h. xanthopallidus binomial name humibacillus xanthopalliduskageyama et al. 2008 type strain dsm 21776jcm 15923kv-663nbrc 101803nrrl b-24471