Streptosporangium saharense sp. nov., an actinobacterium isolated from Saharan soil
| Autor: | Nasserdine Sabaou, Abdelghani Zitouni, Fawzia Chaabane Chaouch, Hans-Peter Klenk, Cathrin Spröer, Salim Mokrane, Peter Schumann, Noureddine Bouras |
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| Rok vydání: | 2016 |
| Předmět: |
DNA
Bacterial 0301 basic medicine Mannose Peptidoglycan Biology Diaminopimelic Acid Microbiology 03 medical and health sciences chemistry.chemical_compound Africa Northern Cell Wall RNA Ribosomal 16S Botany Phospholipids Phylogeny Soil Microbiology Ecology Evolution Behavior and Systematics Mycelium Base Composition Phylogenetic tree Strain (chemistry) Sporangium Fatty Acids fungi Nucleic Acid Hybridization Vitamin K 2 Sequence Analysis DNA General Medicine 16S ribosomal RNA Bacterial Typing Techniques Spore Actinobacteria 030104 developmental biology chemistry Algeria |
| Zdroj: | International Journal of Systematic and Evolutionary Microbiology. 66:1371-1376 |
| ISSN: | 1466-5034 1466-5026 |
| Popis: | A novel actinobacterium, designated strain SG20T, was isolated from a Saharan soil sample collected from Béni-isguen (Mzab), Ghardaïa province, southern Algeria. The micro-organism developed small roundish sporangia on aerial mycelium that were sessile or carried by very short sporangiophores. The cell-wall peptidoglycan contained meso-diaminopimelic acid and the whole-cell sugars comprised glucose, ribose and mannose, but madurose was not detected. The predominant menaquinones were MK-9(H4), MK-9(H6) and MK-9(H2). The major fatty acids were iso-C16 : 0 and C16 : 0. The phospholipids detected were diphosphatidylglycerol, phosphatidylinositol, phosphatidylethanolamine and unknown lipids. The phenotypic and chemotaxonomic characteristics of the novel strain resembled those of recognized members of the genus Streptosporangium. Moreover, phylogenetic analysis based on a 16S rRNA gene sequence generated from the strain identified its closest relative as Streptosporangium jomthongense BCC 53154T (98.5 % similarity), which produces single spores on aerial mycelium, but no sporangia. In hybridization experiments, the DNA-DNA relatedness values recorded between strain SG20T and S. jomthongense DSM 46822T fell well below 70 %. On the basis of phenotypic and genotypic data, strain SG20T can be distinguished as representing a novel species of the genus Streptosporangium, for which the name Streptosporangium saharense sp. nov. is proposed. The type strain is SG20T ( = DSM 46743T = CECT 8840T). |
| Databáze: | OpenAIRE |
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