title: First Azospirillum genome from aquatic environments: Whole-genome sequence of Azospirillum thiophilum BV-S(T), a novel diazotroph harboring a capacity of sulfur-chemolithotrophy from a sulfide spring.
abstract: Azospirillum thiophilum BV-S(T), isolated from a sulfide spring, is a novel nitrogen-fixing bacterium harboring sulfur-lithotrophy. In order to identify genetic characteristics with habitat- and metabolic features contrasting to those from terrestrial Azospirillum species, we present here the genome sequence of a novel species A. thiophilum BV-S(T), with a significance of first genome report in the aquatic Azospirillum species. The genome of strain BV-S(T) is comprised of 7.6Mb chromosome with a GC content of 68.2%. This information will contribute to expand understandings of sulfur-oxidizer microbes that preserve inherencies as a diazotroph, and further it will provide insights into genome plasticity of the genus Azospirillum for niche specific adaptations.
authors.affiliation: School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea.
authors.forename: Yunyoung
authors.initials: Y
authors.lastname: Kwak
authors.affiliation: School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea. Electronic address: jhshin@knu.ac.kr.
authors.forename: Jae-Ho
authors.initials: JH
authors.lastname: Shin
mesh_terms: D016949:Azospirillum / Q000235:genetics*; D052837:Chemoautotrophic Growth / Q000502:physiology*; D017753:Ecosystem; D016680:Genome, Bacterial / Q000235:genetics*; D060985:Natural Springs / Q000737:chemistry* / Q000382:microbiology*; D013440:Sulfides / Q000737:chemistry* / Q000378:metabolism; D014871:Water Microbiology
chemical_list: D013440:Sulfides
keywords: Azospirillum thiophilum; Chemolithotrophy; Diazotroph; Genome plasticity; Sulfur-metabolism