Halomonas zincidurans sp. nov., a heavy-metal-tolerant bacterium isolated from the deep-sea environment

Author:

Xu Lin12,Xu Xue-Wei12,Meng Fan-Xu12,Huo Ying-Yi12,Oren Aharon3,Yang Jun-Yi12,Wang Chun-Sheng12

Affiliation:

1. Laboratory of Marine Ecosystem and Biogeochemistry, State Oceanic Administration, Hangzhou 310012, PR China

2. State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PR China

3. Department of Plant and Environmental Sciences, the Alexander Silberman Institute of Life Sciences, Hebrew University of Jerusalem, Jerusalem 91904, Israel

Abstract

A Gram-stain-negative, aerobic, rod-like, motile by peritrichous flagella and moderately halophilic bacterium, designated strain B6T, was isolated a deep-sea sediment collected from the South Atlantic Ocean. The isolate grew with 0.5–15 % (w/v) NaCl, at 4–37 °C and pH 5.0–8.5 and showed a high tolerance to zinc, manganese, cobalt and copper ions. The major fatty acids were C16 : 0, C19 : 0 cyclo ω8c, C12 : 0 3-OH and C12 : 0. The predominant ubiquinone was Q-9. The genomic DNA G+C content was 61.1 mol%. Phylogenetic analysis based on 16S rRNA gene comparisons indicated that strain B6T belonged to the genus Halomonas , and the closest relative was Halomonas xinjiangensis TRM 0175T (96.1 %). Based upon the phenotypic, chemotaxonomic and genetic data, strain B6T represents a novel species from the genus Halomonas , for which the name Halomonas zincidurans sp. nov. is proposed. The type strain is B6T ( = CGMCC 1.12450T = JCM 18472T).

Funder

Scientific Research Fund of the Second Institute of Oceanography, State Oceanic Administration

National Natural Science Foundation of China

Public Science and Technology Research Funds Projects of Ocean

China Ocean Mineral Resources R & D Association (COMRA) Special Foundation

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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