Microbacterium album sp. nov. and Microbacterium deserti sp. nov., two halotolerant actinobacteria isolated from desert soil.
Int J Syst Evol Microbiol
; 68(1): 217-222, 2018 Jan.
Article
em En
| MEDLINE
| ID: mdl-29125456
ABSTRACT
Strains SYSU D8007T and SYSU D8014T 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 8â% (w/v) NaCl. Strain SYSU D8007T could grow at pH 6.0-10.0, and strain SYSU D8014T at pH 5.0-10.0. They shared highest 16S rRNA gene sequence similarities with Microbacterium marinilacus YM11-607T and Microbacterium paludicola US15T. Menaquinones MK-11 and MK-12 were detected as the respiratory quinones. The polar lipid profiles of strains SYSU D8007T and SYSU D8014T consisted of diphosphatidylglycerol and phosphatidylglycerol, but differed in the number of unidentified glycolipids. Strain SYSU D8007T contained anteiso-C15ââ0, anteiso-C17ââ0 and iso-C16ââ0 as the predominant fatty acids, while strain SYSU D8014T contained anteiso-C15ââ0 and anteiso-C17ââ0 as the major fatty acids (>10â%). While glucose, rhamnose and ribose were detected in strain SYSU D8007T as the whole-cell sugars, galactose, glucose and rhamnose were present in strain SYSU D8014T. The genomic DNA G+C content of strains SYSU D8007T and SYSU D8014T was 72.2 and 73.6 mol%, respectively. Based on phenotypic, genotypic and phylogenetic characteristics, it can be concluded that strains SYSU D8007T and SYSU D8014T represent two novel species of the genus Microbacterium, for which the names Microbacterium album sp. nov. and Microbacterium deserti sp. nov. are proposed, respectively. The type strains are SYSU D8007T (=CGMCC 1.15794T=KCTC 39990T) and SYSU D8014T (=CPCC 204619T=KCTC39991T).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Filogenia
/
Microbiologia do Solo
/
Actinobacteria
/
Clima Desértico
País/Região como assunto:
Asia
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article