title: Isolation, sequencing and characterization of cluster genes involved in the biosynthesis and utilization of the siderophore of marine fish pathogen Vibrio alginolyticus.
abstract: In fish pathogen Vibrio alginolyticus MVP01, the isolated 11-gene cluster consisted of two divergently transcribed, Fe(3+) and ferric uptake regulator (Fur) regulated operons, pvsABCDE and psuA-pvuABCDE, sharing high similarity with that related to siderophore biosynthesis and transportation locus in V. parahaemolyticus. Siderophore biosynthesis or utilization was blocked when pvsA and pvsD of the pvsABCDE operon or pvuA, pvuB and pvuE of the psuA-pvuABCDE operon was single-gene in-frame mutated, demonstrating their essential roles for siderophore biosynthesis or utilization in V. alginolyticus MVP01. Addition of the purified siderophore restored the cell growth in siderophore biosynthesis mutants, but not in siderophore uptake mutants.
authors.affiliation: State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China.
authors.forename: Qiyao
authors.initials: Q
authors.lastname: Wang
authors.forename: Qin
authors.initials: Q
authors.lastname: Liu
authors.forename: Yue
authors.initials: Y
authors.lastname: Ma
authors.forename: Lingyun
authors.initials: L
authors.lastname: Zhou
authors.forename: Yuanxing
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D001483:Base Sequence; D018533:Biomass; D002851:Chromatography, High Pressure Liquid; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D053858:Metabolic Networks and Pathways; D008969:Molecular Sequence Data; D005810:Multigene Family; D009154:Mutation; D016366:Open Reading Frames; D009876:Operon; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D017262:Siderophores / Q000096:biosynthesis* / Q000235:genetics*; D013053:Spectrophotometry; D044149:Vibrio alginolyticus / Q000737:chemistry / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism*; D014736:Vibrio parahaemolyticus / Q000235:genetics
chemical_list: D004269:DNA, Bacterial; D017262:Siderophores