Haloglomus irregulare gen. nov., sp. nov., a New Halophilic Archaeon Isolated from a Marine Saltern
| Autor: | Ana Durán-Viseras, Antonio Ventosa, Cristina Sánchez-Porro |
|---|---|
| Přispěvatelé: | Universidad de Sevilla. Departamento de Microbiología y Parasitología |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Microbiology (medical)
taxonom Haloglomus Microbiology Natronomonas Article hypersaline habitats 03 medical and health sciences chemistry.chemical_compound taxonomy Genus Virology Botany Halomicrobium lcsh:QH301-705.5 haloarchaea 030304 developmental biology Phosphatidylglycerol 0303 health sciences biology Phylogenetic tree salterns 030306 microbiology biology.organism_classification 16S ribosomal RNA Halophile chemistry haloglomus lcsh:Biology (General) Haloarchaea ecology |
| Zdroj: | Microorganisms, Vol 8, Iss 2, p 206 (2020) Microorganisms Volume 8 Issue 2 idUS. Depósito de Investigación de la Universidad de Sevilla instname |
| ISSN: | 2076-2607 |
| Popis: | A halophilic archaeal strain, designated F16-60T, was isolated from Isla Cristina marine saltern in Huelva, Spain. Cells were pleomorphic, irregular, non-motile, and Gram-stain-negative. It produced red-pigmented colonies on agar plates. Strain F16-60T was extremely halophilic (optimum at 30% (w/v) NaCl) and neutrophilic (optimum pH 7.5). Phylogenetic tree reconstructions based on 16S rRNA and rpoB´ gene sequences revealed that strain F16-60T was distinct from species of the related genera Natronomonas, Halomarina, and Halomicrobium, of the order Halobacteriales. The polar lipids are phosphatidylglycerol (PG), phosphatidylglycerol phosphate methyl ester (PGP-Me), phosphatidylglycerol sulfate (PGS), and one glycolipid chromatographically identical to sulfated mannosyl glucosyl diether (S-DGD-1). The DNA G+C content is 68.0 mol%. The taxonomic study, based on a combination of phylogenetic, genomic, chemotaxonomic, and phenotypic analyses, suggest that strain F16-60T (= CECT 9635T = JCM 33318T), represents a novel species of a new genus within the family Haloarculaceae and the order Halobacteriales, for which the name Haloglomus irregulare gen. nov., sp. nov. is proposed. Metagenomic fragment recruitment analysis revealed the worldwide distribution of members of this genus and suggested the existence of other closely related species to be isolated. |
| Databáze: | OpenAIRE |
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