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

Strain CAP181 T , 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...

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Bibliographic Details
Published in:Archives of microbiology 2021-08, Vol.203 (6), p.2853-2861
Main Authors: Kaewkla, Onuma, Suriyachadkun, Chanwit, Franco, Christopher Milton Mathew
Format: Article
Language:English
Subjects:
Biochemistry
Biomedical and Life Sciences
Bioremediation
Biotechnology
Cell Biology
Cell walls
Deoxyribonucleic acid
DNA
Ecology
Endophytes
Fatty acids
Genomes
Gram-positive bacteria
Hybridization
Life Sciences
Menaquinones
Microbial Ecology
Microbiology
Micromonospora
Mycelia
New species
Nitrogen fixation
Nitrogenation
Original Paper
Phylogenetics
Phylogeny
Pine trees
rRNA 16S
Substrates
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Summary:Strain CAP181 T , 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 CAP181 T 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 CAP181 T 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 CAP181 T (= DSM 109713  T  = NRRL B-65535  T ).
ISSN:0302-8933
1432-072X
DOI:10.1007/s00203-021-02260-3