Exiguobacterium Sp. HA2, isolated from the Ilam Mountains of Iran
Heidari, R.; Akbariqomi, M.; Tavoosidana, G.; Rigi, G.
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A motile, Gram-stain-positive, rod-shaped, non-sporing, tolerate up to 5% NaCl, grew at 0-25 {degrees}C, designated Exiguobacterium sp. HA2 was isolated from the soil of the Ilam Mountains of Iran during October 2016. The major isoprenoid quinone is MK-7 and in the smaller amount are MK-6 and MK-8. Polar lipids included diphosphatidylglycerol, phosphatidylglycerol, phosphatidylserine, phosphatidylinositol, phosphatidylethanolamine. Major fatty acids (>10 %) are isoC13:0, isoC15:0 and C16:0. The bacterial cell wall peptidoglycan layer was lysine-glycine. The 16S rRNA sequence was analyzed at the phylogenetic levels. Also, A supplemental comparison was made between five other genes including csp, gyrB, hsp70, rpoB, and citC. According to the results of genotypic and phenotypic characteristics, the strain was categorized in the genus Exiguobacterium. This bacterium had the closest relation with Exiguobacterium undae, and thus was dubbed Exiguobacterium sp. HA2. The different in the Phenotypic, functional characteristics and phylogenetic indicated Exiguobacterium sp. HA2 can be regarded as representing considered a novel species within the genus Exiguobacterium.
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