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Streptomyces heilongjiangensis sp. nov., a novel actinomycete that produces borrelidin isolated from the root surface of soybean [Glycine max (L.) Merr].

ABSTRACT: A borrelidin-producing actinomycete, designated strain NEAU-W2(T), was isolated from the root surface of soybean [Glycine max (L.) Merr] and characterized using a polyphasic approach. The organism was found to have morphological and chemotaxonomic characteristics typical of streptomycetes. The G+C content of the DNA was 66.12 mol%. Analysis of the 16S rRNA gene sequence of strain NEAU-W2(T) revealed that the strain formed a distinct clade within the 16S rRNA gene sequence phylogenetic tree and showed highest similarity (99.61?%) to Streptomyces neyagawaensis ATCC 27449(T). However, the DNA-DNA relatedness between strain NEAU-W2(T) and S. neyagawaensis ATCC 27449(T) was 58.51?%. Strain NEAU-W2(T) could also be differentiated from S. neyagawaensis ATCC 27449(T) and other Streptomyces species showing high 16S rRNA gene sequence similarity (98-99?%), as well as other borrelidin-producing strains, based on morphological and physiological characteristics. On the basis of its physiological and molecular properties, it is proposed that strain NEAU-W2(T) represents a novel Streptomyces species, Streptomyces heilongjiangensis sp. nov. The type strain is NEAU-W2(T) (?=?CGMCC 4.7004(T) ?=?ATCC BAA-2424(T) ?=?DSM 42073(T)).

PROVIDER: S-EPMC3709533 | BioStudies |

REPOSITORIES: biostudies

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