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Volume 68, Issue 1

sp. nov. and sp. nov., two halotolerant actinobacteria isolated from desert soil Free

Abstract

Strains SYSU D8007 and SYSU D8014 were isolated from desert soil collected from Saudi Arabia. The two isolates were Gram-stain-positive, non-motile, aerobic and non-spore-forming. These strains were able to grow at 4–45 °C and in the presence of up to 8 % (w/v) NaCl. Strain SYSU D8007 could grow at pH 6.0–10.0, and strain SYSU D8014 at pH 5.0–10.0. They shared highest 16S rRNA gene sequence similarities with YM11-607 and US15. Menaquinones MK-11 and MK-12 were detected as the respiratory quinones. The polar lipid profiles of strains SYSU D8007 and SYSU D8014 consisted of diphosphatidylglycerol and phosphatidylglycerol, but differed in the number of unidentified glycolipids. Strain SYSU D8007 contained anteiso-C, anteiso-C and iso-C as the predominant fatty acids, while strain SYSU D8014 contained anteiso-C and anteiso-C as the major fatty acids (>10 %). While glucose, rhamnose and ribose were detected in strain SYSU D8007 as the whole-cell sugars, galactose, glucose and rhamnose were present in strain SYSU D8014. The genomic DNA G+C content of strains SYSU D8007 and SYSU D8014 was 72.2 and 73.6 mol%, respectively. Based on phenotypic, genotypic and phylogenetic characteristics, it can be concluded that strains SYSU D8007 and SYSU D8014 represent two novel species of the genus , for which the names sp. nov. and sp. nov. are proposed, respectively. The type strains are SYSU D8007 (=CGMCC 1.15794=KCTC 39990) and SYSU D8014 (=CPCC 204619=KCTC39991).

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Keyword(s): desert , Microbacterium album sp. nov. , Microbacterium deserti sp. nov. and Saudi Arabia
© 2018 IUMS
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2018-01-01
2024-04-19
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Microbacterium album sp. nov. and Microbacterium deserti sp. nov., two halotolerant actinobacteria isolated from desert soil
Int J Syst Evol Microbiol 68, 217 (2018); https://doi.org/10.1099/ijsem.0.002485
/content/journal/ijsem/10.1099/ijsem.0.002485
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