Gram-positive, rod-shaped, endospore-forming, thermophilic bacteria were isolated from a geothermal soil collected on the north-west slope of Mount Melbourne in Antarctica. They grew aerobically at 42–60°C (optimum 55°C) and at pH 4.5–7.5 (optimum pH 5.5). Phylogenetic analysis of 16S rRNA gene sequences showed that these isolates were related most closely to the type strain of Alicyclobacillus pomorum (91% similarity). Growth occurred in the presence of ferrous iron at micromolar concentrations and acid was produced from various sugars. Iso-branched fatty acids C15 : 0 (45.56 %) and C17 : 0 (35.81 %) were the most abundant cellular fatty acids. The DNA G+C content was 55.1 mol%. On the basis of phenotypic and phylogenetic characteristics, it is concluded that these strains represent a novel species of the genus Alicyclobacillus, for which the name Alicyclobacillus pohliae sp. nov. is proposed. The type strain is MP4T (=CIP 109385T =NCIMB 14276T).

Imperio, T., Vti, C., & Marri, L. (2008). Alicyclobacillus pohliae sp. nov., a novel thermophilic endospore-forming bacterium isolated from geothermal soil of the north-west slope of Mount Melbourne (Antarctica). INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 58(1), 221-225 [10.1099/ijs.0.65092-0].

Alicyclobacillus pohliae sp. nov., a novel thermophilic endospore-forming bacterium isolated from geothermal soil of the north-west slope of Mount Melbourne (Antarctica)

MARRI, LAURA
2008

Abstract

Gram-positive, rod-shaped, endospore-forming, thermophilic bacteria were isolated from a geothermal soil collected on the north-west slope of Mount Melbourne in Antarctica. They grew aerobically at 42–60°C (optimum 55°C) and at pH 4.5–7.5 (optimum pH 5.5). Phylogenetic analysis of 16S rRNA gene sequences showed that these isolates were related most closely to the type strain of Alicyclobacillus pomorum (91% similarity). Growth occurred in the presence of ferrous iron at micromolar concentrations and acid was produced from various sugars. Iso-branched fatty acids C15 : 0 (45.56 %) and C17 : 0 (35.81 %) were the most abundant cellular fatty acids. The DNA G+C content was 55.1 mol%. On the basis of phenotypic and phylogenetic characteristics, it is concluded that these strains represent a novel species of the genus Alicyclobacillus, for which the name Alicyclobacillus pohliae sp. nov. is proposed. The type strain is MP4T (=CIP 109385T =NCIMB 14276T).
Imperio, T., Vti, C., & Marri, L. (2008). Alicyclobacillus pohliae sp. nov., a novel thermophilic endospore-forming bacterium isolated from geothermal soil of the north-west slope of Mount Melbourne (Antarctica). INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 58(1), 221-225 [10.1099/ijs.0.65092-0].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/21499
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