Streptomyces tunisialbus sp. nov., a novel Streptomyces species with antimicrobial activity

Antonie van Leeuwenhoek
Ameni AyedFerid Limam

Abstract

A novel actinomycete strain designated S2T was isolated from Tunisian rhizosphere soil of Lavandula officinalis. This isolate exhibited broad spectrum antibacterial activity against several Gram-positive and Gram-negative bacteria and also antifungal activity against yeast and filamentous fungi. The isolate S2T presents morphological and chemotaxonomic characteristics typical of the members of the genus Streptomyces. Whole cell hydrolysates of S2T were found to contain LL-diaminopimelic acid. The major fatty acids were identified as C16:0, anteiso-C15:0 and iso-C16:0 whereas the predominant menaquinones were found to be MK-9(H6) and MK-9(H8). The polar lipids were identified as diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannoside and three unidentified compounds. The G+C content of the genomic DNA was determined to be 71.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain S2T belongs to the genus Streptomyces and is closely related to Streptomyces netropsis DSM 40259T with 99.86% sequence similarity. Multi-locus sequence analysis (MLSA) based on four house-keeping gene alleles (gyrB, recA, trpB, rpoB) showed that isolate S2T...Continue Reading

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Citations

Oct 4, 2020·Nucleic Acids Research·Satria A KautsarMarnix H Medema
Jun 1, 2020·Archives of Microbiology·Ameni AyedNorbert Sewald
Oct 1, 2020·International Journal of Systematic and Evolutionary Microbiology·Aharon Oren, George M Garrity
Apr 2, 2020·International Journal of Systematic and Evolutionary Microbiology·Gary S ErwinChristopher L Haber
Feb 18, 2021·Antonie van Leeuwenhoek·Chandra RisdianJoachim Wink

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Datasets Mentioned

BETA
KY242372

Methods Mentioned

BETA
light
scanning electron microscopy
chips
PCR

Software Mentioned

EzTaxon
MEGA
CLUSTALW
Sequencing Analysis
CLUSTAL W
MLSA

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