Microbacterium mangrovi sp. nov., an amylolytic actinobacterium isolated from mangrove forest soil
| Autor: | Wai Fong Yin, Shu Kee Eng, Nurullhudda Zainal, Nurul Syakima Ab Mutalib, Adzzie Shazleen Azman, Kok-Gan Chan, Learn Han Lee |
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| Rok vydání: | 2014 |
| Předmět: |
DNA
Bacterial Molecular Sequence Data Homoserine Peptidoglycan Forests Muramic acid Biology medicine.disease_cause Microbiology chemistry.chemical_compound Microbacterium mangrovi RNA Ribosomal 16S Actinomycetales medicine Phospholipids Phylogeny Soil Microbiology Ecology Evolution Behavior and Systematics chemistry.chemical_classification Base Composition Fatty Acids Malaysia Nucleic Acid Hybridization Vitamin K 2 Sequence Analysis DNA General Medicine Microbacterium immunditiarum 16S ribosomal RNA Bacterial Typing Techniques Amino acid chemistry Biochemistry Galactose Avicennia Glycolipids |
| Zdroj: | International Journal of Systematic and Evolutionary Microbiology. 64:3513-3519 |
| ISSN: | 1466-5034 1466-5026 |
| DOI: | 10.1099/ijs.0.062414-0 |
| Popis: | Strain MUSC 115T was isolated from mangrove soil of the Tanjung Lumpur river in the state of Pahang, Peninsular Malaysia. Cells of this strain stained Gram-positive and were non-spore-forming, short rods that formed yellowish-white colonies on different agar media. The taxonomy of strain MUSC 115T was studied by a polyphasic approach, and the organism showed a range of phylogenetic and chemotaxonomic properties consistent with those of the genus Microbacterium . The cell-wall peptidoglycan was of type B2β, containing the amino acids ornithine, alanine, glycine, glutamic acid and homoserine. The muramic acid was of the N-glycolyl form. The predominant menaquinones detected were MK-12, MK-13 and MK-11. The polar lipids consisted of phosphatidylglycerol, phosphoglycolipid, diphosphatidylglycerol, two unidentified lipids, three unidentified phospholipids and four unidentified glycolipids. The major fatty acids of the cell membrane were anteiso-C15 : 0 and anteiso-C17 : 0. The whole-cell sugars detected were ribose, glucose, mannose and galactose. Based on the 16S rRNA gene sequence, strain MUSC 115T showed the highest sequence similarity to Microbacterium immunditiarum SK 18T (98.1 %), M. ulmi XIL02T (97.8 %) and M. arborescens DSM 20754T (97.5 %) and lower sequence similarity to strains of other species of the genus Microbacterium . DNA–DNA hybridization experiments revealed a low level of DNA–DNA relatedness (less than 24 %) between strain MUSC 115T and the type strains of closely related species. Furthermore, BOX-PCR fingerprint comparison also indicated that strain MUSC 115T represented a unique DNA profile. The DNA G+C content determined was 70.9±0.7 mol%, which is lower than that of M. immunditiarum SK 18T. Based on the combination of genotypic and phenotypic data, it is proposed that strain MUSC 115T represents a novel species of the genus Microbacterium , for which the name Microbacterium mangrovi sp. nov. is proposed. The type strain is MUSC 115T ( = MCCC 1K00251T = DSM 28240T = NBRC 110089T). |
| Databáze: | OpenAIRE |
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