Promicromonospora endophytica sp. nov., an endophytic actinobacterium isolated from the root of an Australian native Grey Box tree

Onuma Kaewkla, Christopher Franco

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    A novel aerobic actinobacterium, strain EUM 273T, was isolated from the root of a Grey Box tree (Eucalyptus microcarpa Maiden). Cells were Gram-staining-positive with well-developed substrate mycelia which were non-motile and rod-like, with coccoid elements. Phylogenetic evaluation based on 16S rRNA gene sequence analysis placed the isolate as a member of the family Promicromonosporaceae that was most closely related to Promicromonospora xylanilytica YIM 61515T (98.2 %) and Promicromonospora vindobonensis V45T (98 %). Chemotaxonomic data including cell wall components, major menaquinone and major fatty acids confirmed the affiliation of strain EUM 273T 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 EUM 273T from the closest related species with validly published names. The name proposed for the novel species is Promicromonospora endophytica sp. nov. The type strain is EUM 273T (=DSM 23716T=NRRL B-24816T).

    Original languageEnglish
    Pages (from-to)1687-1691
    Number of pages5
    JournalInternational Journal of Systematic and Evolutionary Microbiology
    Volume62
    Issue number7
    DOIs
    Publication statusPublished - Jul 2012

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