Plant-Bacteria Beneficial Interactions

Milagros León Barrios (IP)

Associate Professor
Department of Biochemistry, Microbiology, Cellular Biology and Genetics, Universidad de La Laguna, Tenerife, Spain




Other group members

Laura Pulido-Suárez

Predoc FPU

Research lines

  • Rhizobial taxonomy and phylogeny
  • Plant growth promoting bacteria
  • Symbiotic nitrogen fixation of ecologically-relevant legumes

Representative publications

  • León-Barrios M, Ramírez-Bahena MH, Igual JM, Peix A, Velazquez E (2018) Phyllobacterium salinisoli nov., isolated from a Lotus lancerottensis root nodule in saline soil from Lanzarote. Int J Syst Evol Microbiol 68: 1085–1089.
  • Lorite MJ, Estrella MJ, Escaray F, Sannazaro A, Videira e Castro IM, Monza J, Sanjuán J, León-Barrios MA (2018) The rhizobia-Lotus symbioses: deeply specific and widely diverse. Front Microbiol 9: 2055 (doi: 10.3389/fmicb.2018.02055).
  • Menendez E, Perez-Yepez J, Hernandez M, Rodríguez-Pérez A, Velázquez E, León-Barrios, M (2020) Plant growth promotion abilities of phylogenetically diverse Mesorhizobium strains: effect on the root colonization and development of tomato seedlings. Microorganisms 8: 412 (doi:10.3390/microorganisms8030412).
  • Hernández-Bolaños E, Montesdeoca-Flores D, Abreu-Yanes E, León Barrios M, Abreu-Acosta N (2020) Evaluating different methodologies for bioprospecting actinomycetes in Canary Islands soils. Current Microbiol 77: 2510–2522.
  • Pulido-Suárez L, Díaz-Peña F, Notario-del Pino J, Medina-Cabrera A, León-Barrios M. (2020) Alteration of soil rhizobial populations by rabbit deposition latrines could impair the capacity of Spartocytisus supranubius to fix nitrogen in the insular high-mountain ecosystem of Teide National Park. Applied Soil Ecology (en revisión)


  • León-Barrios M (IP) (2017-2020) Fijación biológica de nitrógeno en el Parque Nacional del Teide: Simbiosis Spartocytisus-Supranubius-Rizobios Fundación Caja Canarias-Fundación Bancaria (2017REC13) “La Caixa”.

Relevant methods

  • Sequencing and phylogeny of prokaryotes
  • Biochemical activities related to nitrogen fixation and plant growth promotion

Collaborations with other national and international research groups

  • Encarna Velázquez (Universidad de Salamanca)
  • Álvaro Péix (IRNASA-CSIC, Salamanca)
  • Clarisse Brígido (ED-Mediterranean Institute for Agriculture, Environment and Development. University of Évora, Portugal)