1. Department of Soil Microbiology and Symbiotic Systems; Estación Experimental del Zaidín (CSIC); C/Profesor Albareda Granada 18008 Spain
2. Biochimie et Physiologie Moléculaire des Plantes; SupAgro/INRA UMR 5004. 2; Place Viala Montpellier Cedex 2 34060 France
3. Department of Microbiology; University of Granada; Av. Fuentenueva s/n Granada 18071 Spain
4. Department of Plant Biotechnology; Instituto de Recursos Naturales y Agrobiología (CSIC); Av. Reina Mercedes, 10 Sevilla 41012 Spain
5. Department of Cellular Biology, Genetics and Physiology, Campus de Teatinos; University of Málaga; Málaga 29010 Spain