frigidibacter frigidibacter frigidibacter is a gram-negative and strictly aerobic genus of bacteria from the family of rhodobacteraceae with one known species (frigidibacter albus). frigidibacter albus has been isolated from water from a lake from xinjiang in china. frigidibacter scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: frigidibacterli and zhou 2015 type species frigidibacter albus species f. albus