Citrobacter amalonatics와 Citrobacter farmari에 의한 perchlorate 환원

초록

The present study reports the novel physiological function of dissimilatory perchlorate reduction by two strains JB101 and JB109 isolated from a sewage treatment facility in Incheon, South Korea. The physiological data of the isolates showed good correspondence with the members of the family Enterobacteriaceae. The partial 16S rRNA and 16S rDNA sequence of strains JB101 and JB109 showed similarity of 99.8% to Citrobacter amalonaticus and 98% to Citrobacter farmari, respectively. The study infers toward possibility of Citrobacter spp. to form an important group of dissimilatory perchlorate reducers within the γ subclass of Proteobacteria because the majority of the known members belong to two monophyletic groups namely Dechloromonas and Dechlorosoma in β subclass of Proteobacteria.