Glycomyces tenuis sp. nov.

Publisher Website
Google Scholar
Abstract
Chemotaxonomic, genetic, and phenotypic characteristics of strain VKM Ac-1250T (T = type strain), which was isolated from an association with Streptomyces gulilueus INA 5888, revealed that this actinomycete is a new Glycomyces species, for which the name Glycomyces tenuis is proposed. This new species could be differentiated from Glycomyces hurbinensis and Glycomyces rutgersensis by the following characteristics: thin hyphae (diameter, 0.15 to 0.40 pm) on the substrate mycelium, absence of aerial hyphae, major menaquinone composition (MK-9(H6), MK-lO(H,), and MK-11(H6)), certain physiological properties, and high levels of susceptibility to some antibiotics and growth inhibitors. The type strain of G. tenuis is strain VKM Ac-1250 (= INA n-5888). Strain VKM Ac-1250T (T = type strain) was isolated from platings of the actinomycete Streptomyces galilaeus INA 5888 by Zakharova et al. (20) from a secondary colony that was devoid of aerial mycelium and resembled an emerging colony of an undifferentiated bald variant. rneso-Diamino- pimelic acid was detected in the cell wall of the newly isolated organism, and this characteristic distinguished it from Streptomyces galilaeus INA 5888 (20), which was considered the likely parent. Subsequently, strain VKM Ac-1250T was subjected to more rigorous characterization. In this paper we describe the results of morphological, chemotaxonomic, and physiologi- cal characterizations of strain VKM Ac-1250T and present data on the levels of DNA-DNA homology between this strain and representatives of the most similar previously described species, Glycomyces rutgersensis and Glycomy- ces harbinensis. Our results support creation of a new species of actinomycetes for this organism, Glycomyces tenuis.

This publication has 0 references indexed in Scilit: