| Title: | "Unearthing the Plant Growth-Promoting Traits of Bacillus megaterium RmBm31, an Endophytic Bacterium Isolated From Root Nodules of Retama monosperma" |
| Author(s): | Dahmani MA; Desrut A; Moumen B; Verdon J; Mermouri L; Kacem M; Coutos-Thevenot P; Kaid-Harche M; Berges T; Vriet C; |
| Address: | "Laboratoire des Productions, Valorisation vegetales et microbiennes (LP2VM), Departement de biotechnologies, Faculte SNV, Universite des Sciences et de la Technologie d'Oran-Mohammed BOUDIAF (USTO M.B), Oran, Algeria. Laboratoire Signalisation et Transports Ioniques Membranaires (STIM), CNRS EA7349, Universite de Poitiers, Poitiers, France. Laboratoire Ecologie et Biologie des Interactions (EBI), UMR CNRS 7267, Universite de Poitiers, Poitiers, France. Departement de Biotechnologie, Faculte SNV, Universite d'Oran Ahmed Ben Bella, Oran, Algeria" |
| ISSN/ISBN: | 1664-462X (Print) 1664-462X (Electronic) 1664-462X (Linking) |
| Abstract: | "Plants live in association with complex populations of microorganisms, including Plant Growth-Promoting Rhizobacteria (PGPR) that confer to plants an improved growth and enhanced stress tolerance. This large and diverse group includes endophytic bacteria that are able to colonize the internal tissues of plants. In the present study, we have isolated a nonrhizobial species from surface sterilized root nodules of Retama monosperma, a perennial leguminous species growing in poor and high salinity soils. Sequencing of its genome reveals this endophytic bacterium is a Bacillus megaterium strain (RmBm31) that possesses a wide range of genomic features linked to plant growth promotion. Furthermore, we show that RmBm31 is able to increase the biomass and positively modify the root architecture of seedlings of the model plant species Arabidopsis thaliana both in physical contact with its roots and via the production of volatile organic compounds. Lastly, we investigated the molecular mechanisms implicated in RmBm31 plant beneficial effects by carrying out a transcriptional analysis on a comprehensive set of phytohormone-responsive marker genes. Altogether, our results demonstrate that RmBm31 displays plant growth-promoting traits of potential interest for agricultural applications" |
| Keywords: | Arabidopsis thaliana Bacillus megaterium Retama monosperma endophyte plant growth-promoting rhizobacteria root nodules volatile compounds; |
| Notes: | "PubMed-not-MEDLINEDahmani, Malika Affaf Desrut, Antoine Moumen, Bouziane Verdon, Julien Mermouri, Lamia Kacem, Mourad Coutos-Thevenot, Pierre Kaid-Harche, Meriem Berges, Thierry Vriet, Cecile eng Switzerland 2020/03/17 Front Plant Sci. 2020 Feb 27; 11:124. doi: 10.3389/fpls.2020.00124. eCollection 2020" |
