Manuel González-Guerrero has been selected as the IV Antonio J. Palomares Awardee by the Spanish Society for Nitrogen Fixation (SEFIN). This is awarded in memoriam of Prof. Antonio José Palomares, late Professor of Microbiolgy at Universidad de Sevilla, founder of SEFIN, and president of the society. The award will be presented at the III Iberoamerican Conference on Beneficial Plant-Microorganism-Environment Interactions to be held at Universidad Nacional Agraria La Molina in Peru.