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Genome Insights into the Novel Species Microvirga brassicacearum, a Rapeseed Endophyte with Biotechnological Potential

AuthorsJiménez-Gómez, Alejandro; Saati-Santamaría, Zaki; Igual, José Mariano ; Rivas, Raúl ; Mateos, Pedro F. ; García-Fraile, Paula
KeywordsPlant-bacteria interactions
Genome mining
Secondary metabolites
Hydrolytic enzymes
Issue Date14-Sep-2019
PublisherMultidisciplinary Digital Publishing Institute
CitationMicroorganisms 7(9): 354 (2019)
AbstractPlants harbor a diversity of microorganisms constituting the plant microbiome. Many bioinoculants for agricultural crops have been isolated from plants. Nevertheless, plants are an underexplored niche for the isolation of microorganisms with other biotechnological applications. As a part of a collection of canola endophytes, we isolated strain CDVBN77T. Its genome sequence shows not only plant growth-promoting (PGP) mechanisms, but also genetic machinery to produce secondary metabolites, with potential applications in the pharmaceutical industry, and to synthesize hydrolytic enzymes, with potential applications in biomass degradation industries. Phylogenetic analysis of the 16S rRNA gene of strain CDVBN77T shows that it belongs to the genus Microvirga, its closest related species being M. aerophila DSM 21344T (97.64% similarity) and M. flavescens c27j1T (97.50% similarity). It contains ubiquinone 10 as the predominant quinone, C19:0 cycloω8c and summed feature 8 as the major fatty acids, and phosphatidylcholine and phosphatidylethanolamine as the most abundant polar lipids. Its genomic DNA G+C content is 62.3 (mol %). Based on phylogenetic, chemotaxonomic, and phenotypic analyses, we suggest the classification of strain CDVBN77T within a new species of the genus Microvirga and propose the name Microvirga brassicacearum sp. nov. (type strain CDVBN77T = CECT 9905T = LMG 31419T).
Publisher version (URL)https://doi.org/10.3390/microorganisms7090354
Appears in Collections:(IRNASA) Artículos
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