| Title: | "Bacteria from nodules of wild legume species: Phylogenetic diversity, plant growth promotion abilities and osmotolerance" |
| Author(s): | Cardoso P; Alves A; Silveira P; Sa C; Fidalgo C; Freitas R; Figueira E; |
| Address: | "Department of Biology & CESAM, University of Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal. Department of Biology, University of Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal. Department of Biology & CESAM, University of Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal. Electronic address: efigueira@ua.pt" |
| DOI: | 10.1016/j.scitotenv.2018.06.399 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "The demand for food with high nutritional value that can sustain the growth of human population while safeguarding sustainability deserves urgent attention. A possible strategy is the inoculation of crops with plant growth promoting (PGP) bacteria. Plants are naturally colonized by bacteria that can exert beneficial effects on growth and stress tolerance. N(2) fixation by rhizobia in the root nodules of legumes is a well-known PGP effect. These bacteria can be used as inoculants to boost legumes productivity and can be especially interesting if they are able to survive to abiotic stresses, such as drought. Herein we report the phylogenetic diversity of bacteria colonizing the root nodules of several wild legume species, from four geographic locations in Portugal with different bioclimates. Interestingly, the vast majority of strains belonged to Flavobacterium, Pseudomonas and other genera apart from rhizobia. PGP abilities other than N(2) fixation (production of indol acetic acid, siderophores and volatile organic compounds) and osmotolerance were screened. Location and host plant species did not influence PGP abilities and osmotolerance. Taken together, results evidenced that bacterial strains from wild legumes displaying PGP abilities and osmotolerance can be regarded as good candidates for inoculants of a broad range of hosts, including non-legumes" |
| Keywords: | *Bacteria Fabaceae/growth & development/*microbiology/physiology Osmoregulation/physiology Phylogeny Plant Roots Portugal Rhizobium Climate change Drought Endophytic bacteria Plant growth promotion Wild legumes; |
| Notes: | "MedlineCardoso, Paulo Alves, Artur Silveira, Paulo Sa, Carina Fidalgo, Catia Freitas, Rosa Figueira, Etelvina eng Netherlands 2018/09/27 Sci Total Environ. 2018 Dec 15; 645:1094-1102. doi: 10.1016/j.scitotenv.2018.06.399. Epub 2018 Jul 21" |
