syntrophus syntrophus syntrophus is a gram negative bacterial genus from the family of syntrophaceae. syntrophus scientific classification domain: bacteria phylum: thermodesulfobacteriota class: syntrophia order: syntrophales family: syntrophaceae genus: syntrophusmountfort et al. 1984 type species syntrophus buswelliimountfort et al. 1984 species s. aciditrophicus s. buswellii s. gentianae phylogeny the currently accepted taxonomy is based on the list of prokaryotic names with standing in nomenclature (lpsn) and national center for biotechnology information (ncbi) 16s rrna based ltp_01_2022 120 marker proteins based gtdb 07-rs207 s. aciditrophicus jackson et al. 2015 s. buswellii mountfort et al. 1984 s. gentianae wallrabenstein et al. 1996 s. aciditrophicus s. gentianae