Título:
Bacillus natronophilus sp. nov., an alkaliphilic bacterium isolated from a soda lake
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Autor:
Menes, Rodrigo Javier
Machín Olivera, Eliana Valentina
Iriarte, Andrés
Langleib de Souza, Mauricio
Machín Olivera, Eliana Valentina
Iriarte, Andrés
Langleib de Souza, Mauricio
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Artículo
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Palabras clave:
Bacillus natronophilus sp. nov
Alkaliphile
Moderately halophilic
Soda lake
Bacillus sp
Alkaliphile
Moderately halophilic
Soda lake
Bacillus sp
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Año de publicación:
2020
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Resumen:
An alkaliphilic, moderately halophilic, heterotrophic, rod-shaped, spore-forming bacterium (M30T) was isolated from a sediment sample collected from a soda lake (Lake Magadi, Tanzania). Strain M30T was strictly aerobic, catalase-positive, oxidase-negative and non-motile. Growth occurred at 12–43 °C (optimum, 25–30 °C), at pH 8.0–12 (optimum, pH 9.5–10) and at salinities of 0.5–15 % (w/v) NaCl (optimum 5 %). It utilized various sugars and organic acids as sole carbon sources and was positive for amylase, cellulase, gelatinase, protease and xylanase activities. The cell-wall peptidoglycan contained meso-diaminopimelic acid and the polar lipids consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, one unidentified lipid and one unidentified phospholipid. The DNA G+C content was 48.9 mol%. The predominant menaquinone was MK-7 and the major fatty acids (>10 %) comprised anteiso-C15 : 0, iso-C15 : 0, and anteiso-C17 : 0. Phylogenetic analysis based on 16S rRNA gene sequence affiliated M30T to the genus Bacillus and showed the highest similarities to Bacillus populi FJAT-45347T (96.4 %) and Bacillus aurantiacus K1-5T (96.2 %). Based on the data from the current polyphasic study, M30T represents a novel species of the genus Bacillus , for which the name Bacillus natronophilus sp. nov. is proposed. The type strain is M30T (=JCM 32118T=CGMCC 1.16739T=MCC 3010T).
Descripción:
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Microbiology Society
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International Journal of Systematic and Evolutionary Microbiology, 2020, 70(1): 562–568
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Citación:
Menes, R, Machín Olivera, E, Iriarte, A [y otro]. "Bacillus natronophilus sp. nov., an alkaliphilic bacterium isolated from a soda lake". International Journal of Systematic and Evolutionary Microbiology. [en línea] 2020, 70(1): 562–568. 7 h. DOI: 10.1099/ijsem.0.003792
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1466-5034
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Licencia Creative Commons Atribución - No Comercial (CC - By-NC 4.0)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| 562_ijsem003792.pdf | — | 382.48 KB | Adobe PDF |