Desulfovibrios from marine biofoulings at the South Vietnam coastal area and description of Desulfovibrio hontreensis sp. nov.

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• 作者：A. L. Tarasov ; G. A. Osipov ; I. A. Borzenkov
• 关键词：sulfate ; reducing bacteria ; Desulfovibrio ; marine biofouling ; corrosion ; Desulfovibrio hontreensis sp. nov
• 刊名：Microbiology
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：84
• 期：5
• 页码：654-664
• 全文大小：1,176 KB
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  Tourova, T.P., Kovaleva, O.L
• 作者单位：A. L. Tarasov (1)
  G. A. Osipov (2)
  I. A. Borzenkov (1)
  
  1. Winogradsky Institute of Microbiology, Russian Academy of Sciences, Moscow, Russia
  2. Bakoulev Center for Cardiovascular Surgery, Russian Academy of Sciences, Moscow, Russia
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Microbiology
  Medical Microbiology
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3237

文摘

A Desulfovibrio strain physiologically similar to and phylogenetically related to “D. caledoniensis-/em> SEBR 7250, D. portus MSL79, and D. dechloracetivorans ATCC 700912 (96.9, 95.9, and 95.8% similarity of the 16S rRNA gene sequences, respectively) was isolated from marine biofouling in the coastal zone of the South China Sea (Nha Trang, South Vietnam). The cells of strain ME were gram-negative motile vibrios (0.4-.6 × 1.3- μm) with a single flagellum. The strain grew at 20 to 39°C (growth optimum at 34-7°C), pH 5.8 to 8.5 (pH optimum at 6.8-.5), and salinity from 0.08 to 1.1 M Na+ (optimum at 0.2-.3 M Na+). In the presence of sulfate, the strain grew autotrophically with hydrogen or on lactate, formate, pyruvate, fumarate, and malate. Weak growth occurred on succinate, glycerol, and fructose. In the absence of sulfate, the strain was able to ferment pyruvate, malate (weakly), but not lactate. Sulfate, sulfite, thiosulfate, elemental sulfur, and dimethyl sulfoxide were used as electron acceptors. Vitamins and yeast extract were not required for growth. The G + C content was 52.4 mol %. Predominant fatty acids were C18:0 (13.9%), C16:0 (9.6%), iso-C16:0 (9.5%), C18:1ω7 (8.8%), anteiso-C15:0 (8.1%), and iso-C17:1 (7.2%). The fatty acid composition was close to that of D. dechloracetivorans BO and has some similarity to that of D. portus. Based on its genotypic and phenotypic characteristics, strain ME maybe considered as a new species, for which the name Desulfovibrio hontreensis sp. nov. is proposed. Keywords sulfate-reducing bacteria Desulfovibrio marine biofouling corrosion Desulfovibrio hontreensis sp. nov