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Streptomyces lydicamycinicus sp. nov. and Its Secondary Metabolite Biosynthetic Gene Clusters for Polyketide and Nonribosomal Peptide Compounds

Hisayuki Komaki, Akira Hosoyama, Yasuhiro Igarashi, Tomohiko Tamura

Microorganisms. 2020 Mar 6;8(3):370.

PMID: 32155704

Abstract:

(1) Background: Streptomyces sp. TP-A0598 derived from seawater produces lydicamycin and its congeners. We aimed to investigate its taxonomic status; (2) Methods: A polyphasic approach and whole genome analysis are employed; (3) Results: Strain TP-A0598 contained ll-diaminopimelic acid, glutamic acid, glycine, and alanine in its peptidoglycan. The predominant menaquinones were MK-9(H6) and MK-9(H8), and the major fatty acids were C16:0, iso-C15:0, iso-C16:0, and anteiso-C15:0. Streptomyces sp. TP-A0598 showed a 16S rDNA sequence similarity value of 99.93% (1 nucleottide difference) to Streptomyces angustmyceticus NRRL B-2347T. The digital DNA-DNA hybridisation value between Streptomyces sp. TP-A0598 and its closely related type strains was 25%-46%. Differences in phenotypic characteristics between Streptomyces sp. TP-A0598 and its phylogenetically closest relative, S. angustmyceticus NBRC 3934T, suggested strain TP-A0598 to be a novel species. Streptomyces sp. TP-A0598 and S. angustmyceticus NBRC 3934T harboured nine and 13 biosynthetic gene clusters for polyketides and nonribosomal peptides, respectively, among which only five clusters were shared between them, whereas the others are specific for each strain; and (4) Conclusions: For strain TP-A0598, the name Streptomyces lydicamycinicus sp. nov. is proposed; the type strain is TP-A0598T (=NBRC 110027T).

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
LS741330 Peptidoglycan from Streptomyces sp. Peptidoglycan from Streptomyces sp. Price
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