Departamental II – DII. 248
Area of Biodiversity and Conservation
Universidad Rey Juan Carlos
c/ Tulipán, s/n.
E-28933 Móstoles (Madrid)

Phone: +34 91 488 7033
Fax:        +34 91 664 7490
E-mail: pilar.martinezh at


Short CV

2007- Degree in Biology, Universidad de Salamanca
2008-2012 Ph D in Biological Sciences, Universidad de Salamanca
2013-2014 Post-doc researcher at Universidad de Salamanca
2015-2016 Visiting associate scholar at University of California, Los Angeles (USA)
2016-2017 Lecturer, Universidad de Salamanca

Current position


Research lines

1. Plant-microorganism interactions.

2. Nodular microbiome and culturome.

3. Isolation and characterization of bacteria promoting plant groth.


1. Flores‐Félix, J. D.; Menéndez, E.; Rivera, L. P.; Marcos‐García, M.; Martínez‐Hidalgo, P.; Mateos, P. F.; Martínez‐Molina, E.; Velázquez, M. D. L. E.; García‐Fraile, P.; Rivas, R. (2013). Use of Rhizobium leguminosarum as a potential biofertilizer for Lactuca sativa and Daucus carota crops. Journal of Plant Nutrition and Soil Science 176: 876-882.

2. Armas-Capote, N.; Pérez-Yépez, J.; Martínez-Hidalgo, P.; Garzón-Machado, V.; del Arco-Aguilar, M.; Velázquez, E.; León-Barrios, M. (2014). Core and symbiotic genes reveal nine Mesorhizobium genospecies and three symbiotic lineages among the rhizobia nodulating Cicer canariense in its natural habitat (La Palma, Canary Islands). Systematic and Applied Microbiology 37: 140-148.

3. Cobo-Díaz, J. F.; Martínez-Hidalgo, P.; Fernández-González, A. J.; Martínez-Molina, E.; Toro, N.; Velázquez, E.; Fernández-López, M. (2014). The endemic Genista versicolor from Sierra Nevada National Park in Spain is nodulated by putative new Bradyrhizobium species and a novel symbiovar (sierranevadense). Systematic and Applied Microbiology 37: 177-185.

4. Carro, L.; Flores-Félix, J. D.; Ramírez-Bahena, M. H.; García-Fraile, P.; Martínez-Hidalgo, P.; Igual, J. M.; Tejedor, C.; Peix, A.; Velázquez, E. (2014). Paenibacillus lupini sp. nov., isolated from nodules of Lupinus albus. International Journal of Systematic and Evolutionary Microbiology 64: 3028-3033.
5. Martínez-Hidalgo, P.; Olivares, J.; Delgado, A.; Bedmar, E.; Martínez-Molina, E. (2014). Endophytic Micromonospora from Medicago sativa are apparently not able to fix atmospheric nitrogen. Soil Biology and Biochemistry 74: 201-203.

6. Martínez-Hidalgo, P.; Galindo-Villardón, P.; Trujillo, M. E.; Igual, J. M.; Martínez-Molina, E. (2014). Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria. Scientific Reports 4.

7. Martínez-Hidalgo, P.; Ramírez-Bahena, M. H.; Flores-Felix, J. D.; Rivas, R.; Igual, J. M.; Mateos, P. F.; Martínez-Molina, E.; León-Barrios, M.; Peix, A.; Velázquez, E., (2015). Revision of the taxonomic status of type strains of Mesorhizobium loti and reclassification of strain USDA 3471T as the type strain of Mesorhizobium erdmanii sp. nov. and ATCC 33669T as the type strain of Mesorhizobium jarvisii sp. nov. International Journal of Systematic and Evolutionary Microbiology 65: 1703-1708.

8. Martinez-Hidalgo, P.; Flores-Felix, J. D.; Menéndez, E.; Rivas, R.; Carro, L.; Mateos, P. F.; Martínez-Molina, E.; León-Barrios, M.; Velázquez, E. (2015). Cicer canariense, an endemic legume to the Canary Islands, is nodulated in mainland Spain by fast-growing strains from symbiovar trifolii phylogenetically related to Rhizobium leguminosarum. Systematic and Applied Microbiology 38: 346-350.

9. Martínez-Hidalgo, P.; García, J. M.; Pozo, M. J. (2015). Induced systemic resistance against Botrytis cinerea by Micromonospora strains isolated from root nodules. Frontiers in Microbiology 6.

10. Maymon, M.; Martínez-Hidalgo, P.; Tran, S. S.; Ice, T.; Craemer, K.; Anbarchian, T.; Sung, T.; Hwang, L. H.; Chou, M.; Fujishige, N. A.; Villella, W. (2015). Mining the phytomicrobiome to understand how bacterial coinoculations enhance plant growth. Frontiers in Plant Science 6.

11. Martínez-Hidalgo, P.; Pérez-Yépez, J.; Velázquez, E.; Pérez-Galdona, R.; Martínez-Molina, E.; León-Barrios, M. (2016). Symbiovar loti genes are widely spread among Cicer canariense mesorhizobia, resulting in symbiotically effective strains. Plant and Soil 398: 25-33.

12. De Meyer, S. E.; Briscoe, L.; Martinez-Hidalgo, P.; Agapakis, C.; Estrada de los Santos, P.; Seshadri, R.; Reeve, W.; Weinstock, G.; O’Hara, G.; Howieson, J.; Hirsch, A. M. (2016). Symbiotic Burkholderia species show diverse arrangements of nif/fix and nod genes, and lack typical high affinity cytochrome cbb3 oxidase genes. Molecular Plant-Microbe Interactions 29: 609-619.

13. Martínez-Hidalgo, P.; Ramírez-Bahena, M. H.; Flores-Félix, J. D.; Igual, J. M.; Sanjuán, J.; León-Barrios, M.; Peix, A.; Velázquez, E. (2016). Reclassification of strains MAFF 303099T and R7A into the new species Mesorhizobium japonicum sp. nov. International Journal of Systematic and Evolutionary Microbiology 66: 4936-4941.

14. Villadas, P. J.; Lasa, A. V.; Martínez-Hidalgo, P.; Flores-Félix, J. D.; Martínez-Molina, E.; Toro, N.; Velazquez, E.; Fernández-López, M. (2017). Analysis of rhizobial endosymbionts of Vicia, Lathyrus and Trifolium species used to maintain mountain firewalls in Sierra Nevada National Park (South Spain). Systematic and Applied Microbiology</em. 40: 92-101.

15. Fernández-González, A. J.; Martínez-Hidalgo, P..; Cobo-Díaz, J. F.; Villadas, P. J.; Martínez-Molina, E.; Toro, N.; Tringe, S.; Fernández-López, M. (2017). The rhizosphere microbiome of burned holm-oak: potential role of the genus Arthrobacter in the recovery of burned soils. Scientific Reports 7: 6008.

16. Martínez-Hidalgo, P.; Hirsch, A. M. (2017). The nodule microbiome; N2-fixing rhizobia do not live alone. Phytobiomes 2: 70-82.

17. Veliz, E. A.; Martínez-Hidalgo, P.; Hirsch, A. M. (2017). Chitinase-producing bacteria and their role in biocontrol. AIMS Microbiology 3: 689-705.

18. Khan, N.; Martínez-Hidalgo, P.; Ice, T. A.; Maymon, M.; Humm, E. A.; Nejat, N.; Sanders, E. R.;  Kaplan, D.;  Hirsch A. M. (2018). Antifungal activity of Bacillus species against Fusarium and analysis of the potential mechanisms used in biocontrol. Frontiers in Microbiology 9: 2363.