sinirhodobacter hungdaonensis sinirhodobacter hungdaonensis sinirhodobacter hungdaonensis is a bacterium from the genus of sinirhodobacter which has been isolated from activated sludge from a wastewater treatment plant in huangdao in china. sinirhodobacter hungdaonensis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: sinirhodobacter species: s. hungdaonensis binomial name sinirhodobacter hungdaonensiscorrig. xi et al. 2019 type strain l3, cgmcc 1.12963t, kctc 42823