1887

Abstract

A novel actinomycete, designated strain 1H-SSA4, was isolated from the head of an ant ( Mayr) and was found to produce angucyclinone antibiotics. A polyphasic approach was used to determine the taxonomic status of strain 1H-SSA4. The DNA G+C content of the draft genome sequence, consisting of 11.4 Mbp, was 70.0 mol%. 16S rRNA gene sequence similarity studies showed that strain 1H-SSA4 belongs to the genus with the highest sequence similarity to subsp. NBRC 13983 (98.9 %), and phylogenetically clustered with this species, LMG 20305 (98.8 %), NBRC 13050 (98.5 %) and NRRL 2666 (98.4 %). The morphological and chemotaxonomic properties of the strain were also consistent with those members of the genus . A combination of DNA–DNA hybridization experiments and phenotypic tests were carried out between strain 1H-SSA4 and the above-mentioned strains, which further clarified their relatedness and demonstrated that strain 1H-SSA4 could be distinguished from these strains. Therefore, the strain is concluded to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is 1H-SSA4 (=CGMCC 4.7403=DSM 104537).

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2018-01-01
2024-04-18
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