Trebonia kvetii gen. nov., sp. nov., an acidophilic actinobacterium, and proposal of the new actinobacterial family Treboniaceae fam. nov

Autor: Jan Provaznik, Daria Rapoport, Vladimir Benes, Dinko Pavlinic, Jan Kopecky, Marketa Sagova-Mareckova, Stanislava Králová, Ivo Sedláček
Rok vydání: 2020
Předmět:
Zdroj: International Journal of Systematic and Evolutionary Microbiology. 70:5106-5114
ISSN: 1466-5034
1466-5026
DOI: 10.1099/ijsem.0.004388
Popis: A novel actinobacterial strain, designated 15TR583T, was isolated from a waterlogged acidic soil collected near the town of Trebon, Czech Republic, and was subjected to a polyphasic taxonomic characterization. Phylogenetic analysis based on 16S rRNA gene and whole-genome sequences revealed that the organism forms an individual line of descent related to the orderStreptosporangiales, classActinomycetia. The strain shared highest 16S rRNA gene sequence similarity, yet of only 92.8%, withActinocorallia aureaIFO 14752T. The strain grew in white colonies of aerobic, Gram-stain-positive, unbranching substrate mycelium bearing single spores at hyphae tips. The major fatty acids (>10%) were iso-C16 : 0, C16 : 0, iso-C17 : 1ω9 and 10-methyl-C17 : 0. The fatty acid pattern differed from all patterns currently described for actinobacterial genera. The organism contained as major menaquinones MK9(H6) and MK9(H8), which differentiated it from other actinobacterial families. Polar lipids were composed of six unidentified glycolipids, an unidentified phosphoglycolipid, two unidentified phospholipids and two unidentified aminolipids. Whole-cell sugars contained galactose, xylose and arabinose as major components. The peptidoglycan type was A1γmeso-diaminopimelic acid. The genomic DNA G+C content was 69.7 mol%. The distinct phylogenetic position and unusual combination of chemotaxonomic characteristics justify the proposal ofTreboniagen. nov., with the type speciesTrebonia kvetiisp. nov. (type strain 15TR583T=CCM 8942T=DSM 109105T), withinTreboniaceaefam. nov.
Databáze: OpenAIRE