sp. nov., a streptomycete with violet–blue diffusible pigment isolated from soil in Vietnam Free

Abstract

An actinomycete, designated strain GIMV4.0001, was isolated from a forest soil sample in Vietnam. It produced white aerial mycelium and violet–blue diffusible pigment on Gause's synthetic agar. The substrate mycelium colour was not sensitive to pH. Micoscopic observations revealed that strain GIMV4.0001 produced long, straight chains of cylindrical spores, and chemotaxonomic data confirmed that it belongs to the genus Melanin was produced, but no antibacterial activity was evident against , , , or Analysis of the 16S rRNA gene sequence of strain GIMV4.0001 revealed that the highest similarity (99.4 %) was to ATCC 11062. However, the DNA–DNA relatedness between strain GIMV4.0001 and ATCC 11062 was found to be 50.3 %. Strain GIMV4.0001 could also be differentiated from ATCC 11062 and other species showing high 16S rRNA gene sequence similarity (98–99 %) based on morphological, physiological and biochemical characteristics. On the basis of its physiological and molecular properties, it is evident that strain GIMV4.0001 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is GIMV4.0001 (=CCTCC M 205143=IAM 15340).

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2007-08-01
2024-03-28
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