AI Article Synopsis
- A new Gram-positive bacterium, named Virgibacillus ainsalahensis, was discovered in a saline lake sediment in Algeria, showing rod-shaped and motile characteristics.
- It thrives in salty environments (optimal growth at 5-10% NaCl), with a wide pH tolerance (optimal at 8.0) and a temperature preference around 30°C.
- Phylogenetic analysis indicated a close relation to Virgibacillus halodenitrificans, with a gene sequence similarity of 97%, and it has a DNA G+C content of 45.3%.
Article Abstract
A Gram-positive, moderately halophilic, endospore-forming bacterium, designated MerV, was isolated from a sediment sample of a saline lake located in Ain Salah, south of Algeria. The cells were rod shaped and motile. Isolate MerV grew at salinity interval of 0.5-25% NaCl (optimum, 5-10%), pH 6.0-12.0 (optimum, 8.0), and temperature between 10 and 40 °C (optimum, 30 °C).The polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol, a glycolipid, a phospholipid, and two lipids, and MK-7 is the predominant menaquinone. The predominant cellular fatty acids were anteiso C and anteiso C. The DNA G+C content was 45.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that strain MerV was most closely related to Virgibacillus halodenitrificans (gene sequence similarity of 97.0%). On the basis of phenotypic, chemotaxonomic properties, and phylogenetic analyses, strain MerV (=DSM = 28944) should be placed in the genus Virgibacillus as a novel species, for which the name Virgibacillus ainsalahensis is proposed.
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| http://dx.doi.org/10.1007/s00284-016-1171-0 | DOI Listing |
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