title: Investigation of mercury tolerance in Chromohalobacter israelensis DSM 6768T and Halomonas zincidurans B6T by comparative genomics with Halomonas xinjiangensis TRM 0175T.
abstract: Chromohalobacter israelensis DSM 6768(T), Halomonas zincidurans B6(T), and Halomonas xinjiangensis TRM 0175(T) are three phylogenetically close strains belonging to the class Gammaproteobacteria. Both strains DSM 6768(T) and B6(T) can grow on plate containing 0.5mM HgCl2. Strain TRM 0175(T) could not grow on plates containing 0.1mM or more HgCl2. Here we report the draft genomes of strains DSM 6768(T) and TRM 0175(T) for comparative genomic analysis. Gene cluster with putative function in mercury resistance in strain DSM 6768(T) includes a mercuric ion reductase, whose homologues distribute among several marine microbes. Strain B6(T), which was isolated from the Atlantic Ocean, has one more gene cluster with putative function in mercury resistance than strain DSM 6768(T). This study will enhance our understanding of the mercury tolerance and further investigation in marine microbes.
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, PR China.
authors.forename: Peng
authors.initials: P
authors.lastname: Zhou
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, PR China.
authors.forename: Ying-Yi
authors.initials: YY
authors.lastname: Huo
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, PR China.
authors.forename: Lin
authors.initials: L
authors.lastname: Xu
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, PR China.
authors.forename: Yue-Hong
authors.initials: YH
authors.lastname: Wu
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, PR China.
authors.forename: Fan-Xu
authors.initials: FX
authors.lastname: Meng
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, PR China.
authors.forename: Chun-Sheng
authors.initials: CS
authors.lastname: Wang
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, PR China. Electronic address: xuxw@sio.org.cn.
authors.forename: Xue-Wei
authors.initials: XW
authors.lastname: Xu
mesh_terms: D001267:Atlantic Ocean; D001483:Base Sequence; D055353:Chromohalobacter / Q000187:drug effects* / Q000235:genetics*; D004305:Dose-Response Relationship, Drug; D004361:Drug Tolerance / Q000235:genetics*; D020632:Halomonas / Q000187:drug effects* / Q000235:genetics*; D008628:Mercury / Q000633:toxicity*; D008826:Microbial Sensitivity Tests; D058977:Molecular Sequence Annotation; D008969:Molecular Sequence Data; D017422:Sequence Analysis, DNA; D013045:Species Specificity
chemical_list: D008628:Mercury
keywords: Genome sequencing; Mercury resistance; Moderately halophilic bacteria