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Streptomyces telluris sp. nov., a promising terrestrial actinobacterium with antioxidative potentials
Author(s)
Thayanuwadtanawong, Onnicha
Bunbamrung, Nantiya
Pittayakhajonwut, Pattama
Intaraudom, Chakapong
Tadtong, Sarin
Suriyachadkun, Chanwit
He, Ya Wen
Tanasupawat, Somboon
Date Issued
June 1, 2023
Type
Article
Abstract
An actinomycete strain, AA8T, which produced a long straight chain of spores (verticillati type), was isolated from the rhizosphere soil of Mangifera indica in Bangkok, Thailand. A polyphasic taxonomic study was carried out to establish the taxonomic position of the strain. Strain AA8T formed a tight taxonomic position in the 16S rRNA gene tree with Streptomyces roseifaciens MBT76T. In contrast, the genome-based taxonomic analysis showed that strain AA8T shared low average nucleotide identity-BLAST (94.1%), the digital DNA–DNA hybridization (58.2%), and the average amino acid identity (93.6%) values with S. roseifaciens MBT76T. Moreover, a combination of physiological and biochemical properties indicated that strain AA8T was distinguished from all Streptomyces species with effectively published names. Strain AA8T, therefore, represents a novel species of Streptomyces, and the name Streptomyces telluris is proposed for the strain. The type strain is AA8T (= TBRC 8483T = NBRC 113461T). The chemical investigation led to the isolation of nine known compounds (compounds 1–9). Among these compounds, compound 7 (3,4-dihydroxybenzaldehyde) possesses strong antioxidant activity equal to ascorbic acid, a powerful antioxidative agent.
Citation
Archives of Microbiology, 205(6), 2023