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Desulfobulbus aggregans sp. nov., a novel sulfate-reducing bacterium isolated from marine sediment from the Gulf of Gabes

Kharrat, Hanen, Karray, Fatma, Bartoli, Manon, Ben Hnia, Wajdi, Mhiri, Najla, Fardeau, Marie-Laure, Bennour, Feten, Kamoun, Lotfi, Alazard, Didier, Sayadi, Sami·2017·Current Microbiology
DOI 10.1007/s00284-017-1211-4
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Abstract

Three sulfate-reducing bacterial strains designated SM40 T , SM41, and SM43 were isolated from marine sediment in the region of Skhira located in the Gulf of Gabes (Tunisia). These strains grew in anaerobic media with phosphogypsum as a sulfate source and sodium lactate as an electron and carbon source. One of them, strain SM40 T , was characterized by phenotypic and phylogenetic methods. Cells were ovoid, Gram-stain-negative and non-motile. The temperature limits for growth were 10 and 55 °C with an optimum at 35 °C and the pH range was 6.5-8.1 with an optimum at pH 7.5. Growth was observed at salinities ranging from 10 to 80 g NaCl l -1 with an optimum at 30 g NaCl l -1 . Strain SM40 T was able to utilize butanol, ethanol, formate, L-glucose, glycerol, lactate, propanol, propionate, and pyruvate as electron donors for the reduction of sulfate, sulfite, or thiosulfate to H 2 S. Without electron acceptors, strain SM40 T fermented butanol and pyruvate. The DNA G+C content of strain SM40 T was 52.6 mol %. Phylogenetic analysis based on the 16S rRNA gene sequence of the isolate revealed that strain SM40 T was closely related to the species in the genus Desulfobulbus of the family Desulfobulbaceae. The sequence similarity between strain SM40 and Desulfobulbus marinus was 95.4%. The phylogenetic analysis, DNA G+C content, and differences in substrate utilization suggested that strain SM40 represents a new species of the genus Desulfobulbus, D. aggregans sp. nov. The type strain is…

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Research works printed but not linked: 26

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Metadata

Authors
Kharrat, H., Karray, F., Bartoli, M., Ben Hnia, W., Mhiri, N., Fardeau, M.-L., Bennour, F., Kamoun, L., Alazard, D., & Sayadi, S.
Venue
Current Microbiology
Publisher
Springer Science and Business Media LLC
Published
2017-02-17
Volume
74
Issue
4
Pages
449-454
ISSN
  • 0343-8651
  • 1432-0991
DOI
10.1007/s00284-017-1211-4
Cited by
35
References
0
Language
en
Licence
www.springer.com/tdm (unspecified)

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CoChat. (2026). Citation check: Desulfobulbus aggregans sp. nov., a novel sulfate-reducing bacterium isolated from marine sediment from the Gulf of Gabes. https://app.cochat.ai/papers/10.1007/s00284-017-1211-4
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Kharrat, H., Karray, F., Bartoli, M., Ben Hnia, W., Mhiri, N., Fardeau, M.-L., Bennour, F., Kamoun, L., Alazard, D., & Sayadi, S. (2017). Desulfobulbus aggregans sp. nov., a novel sulfate-reducing bacterium isolated from marine sediment from the Gulf of Gabes. Current Microbiology. https://doi.org/10.1007/s00284-017-1211-4