Micromonospora veneta sp. nov., an endophytic actinobacterium with potential for nitrogen fixation and for bioremediation

Onuma Kaewkla, Chanwit Suriyachadkun, Christopher Milton Mathew Franco

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Strain CAP181T, an endophytic actinobacterium, was isolated from a surface sterilized root sample of a native pine tree, Flinders University, Adelaide, South Australia. Chemotaxonomic data including cell wall components, major fatty acids, and major menaquinones confirmed the affiliation of strain CAP181T to the genus Micromonospora. This strain was Gram stain positive with well-developed substrate mycelia to form a single spore with hairy surface. The phylogenetic tree showed that M. coerulea NBRC 13504 T is the closest phylogenetic neighbour, sharing 99.2% 16S rRNA gene similarity and the next closest neighbor is M. chaiyaphumensis DSM 45246 T (98.7%). Genome mining of this strain revealed genes encoding to enzymes relating to nitrogen fixation and bioremediation. Based on genotypic and phenotypic studies including DNA–DNA hybridization data, strain CAP181T was different from any of the closely related species with valid names. The name proposed for the new species is Micromonospora veneta sp. nov. The type strain is CAP181T (= DSM 109713 T = NRRL B-65535 T).

    Original languageEnglish
    Pages (from-to)2853-2861
    Number of pages9
    JournalARCHIVES OF MICROBIOLOGY
    Volume203
    Issue number6
    Early online date22 Mar 2021
    DOIs
    Publication statusPublished - Aug 2021

    Keywords

    • Endophytic actinobacterium
    • Genome mining
    • Micromonospora venata sp. nov

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