frondibacter aureus frondibacter aureus frondibacter aureus is a gram-negative, facultatively anaerobic, rod-shaped and non-motile bacterium from the genus of frondibacter which has been isolated from leaf litter from the nakama river. frondibacter aureus scientific classification domain: bacteria phylum: bacteroidota class: flavobacteria order: flavobacteriales family: flavobacteriaceae genus: frondibacter species: f. aureus binomial name frondibacter aureusyoon et al. 2015 type strain a5q-67