Promicromonospora callitridis sp. nov., an endophytic actinobacterium isolated from the surface-sterilized root of an Australian native pine tree

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    Abstract

    A new strain of the genus Promicromonospora, CAP94T, was isolated from the surface sterilized root of Callitrispreissii (Australian native pine tree). This strain was a Gram-stain-positive, aerobic actinobacterium with hyphae breaking up into fragments which were non-motile, rod-like, coccoid elements. Phylogenetic evaluation based on 16S rRNA gene sequence analysis placed this isolate as a member of the family Promicromonospora ceae, and most closely to Promicromonospora sukumoe NBRC 14650T (99.4 %), Promicromonospora kroppenstedtii DSM 19349T (99.2 %) and Promicromonosporaaerolata V54AT (99.1 %). Chemotaxonomic data including cell-wall components, major menaquinone and major fatty acids confirmed the affiliation of strain CAP94T to the genus Promicromonospora. The results of the phylogenetic analysis, including physiological and biochemical studies in combination with DNA–DNA hybridization, allowed the genotypic and phenotypic differentiation of strain CAP94T and the closest species with validly published names. The name proposed for the new species is Promicromonospora callitridis sp. nov. The type strain is CAP94T (=DSM 103339T=TBRC 6025T).

    Original languageEnglish
    Article number002165
    Pages (from-to)3559-3563
    Number of pages5
    JournalInternational Journal of Systematic and Evolutionary Microbiology
    Volume67
    Issue number9
    DOIs
    Publication statusPublished - 1 Sep 2017

    Keywords

    • Endophytic actinobacteria
    • Pine tree
    • Promicromonospora sp. nov

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