My main research interest lies in the understanding of the structure and the functioning of natural microbial communities. After completing a PhD mainly focusing on communities associated to diverse microbial mats, I decided to give to my research an applied perspective by investigating the ecology of soil microbial communities in agro-ecosystems. My current projects involve both field and experimental work, with an emphasis on the assessment of the role of community composition (both above and belowground) on the genetic potential for different N transformations (nitrification, denitrification and DNRA) in arable soils (including bulk soil, rhizosphere and root compartments).
Full publication list in peer-reviewed journals since 2015:
 Graf DRH, Saghaï A, Zhao M, Carlsson G, Jones CM and Hallin S (2019). Lucerne (Medicago sativa) alters N2O-reducing communities associated with cocksfoot (Dactylis glomerata) roots and promotes N2O production in intercropping in a greenhouse experiment. Soil Biol and Biochem 137:107547.
 Gutiérrez-Preciado A*, Saghaï A*, Moreira D, Zivanovic Y, Deschamps, P and López-García P (2018). Functional shifts in microbial mats recapitulate early Earth metabolic transitions. Nature Evol Ecol 2: 1700-1708.
 Saghaï A, Gutiérrez-Preciado A, Deschamps P, Moreira D, Bertolino P, Ragon M, López-García JM, García-Ruiz J and López-García P (2017). Unveiling microbial interactions in stratified mat communities from a warm saline shallow pond. Environ Microbiol 19: 2405–2421.
 Saghaï A, Zivanovic Y, Moreira D, Benzerara K, Bertolino P, Ragon M, Tavera R, López-Archilla AI and López-García P (2016). Comparative metagenomics unveils functions and genome features of microbialite-associated communities along a depth gradient. Environ Microbiol 18: 4990-5004.
 Mizuno CM, Ghai R, Saghaï A, López-García P and Valera FR (2016). Genomes of abundant and widespread viruses from the deep ocean. mBio 7(4):e00805-16.
 Saghaï A, Zivanovic Y, Zeyen N, Moreira D, Benzerara K, Deschamps P, Bertolino P, Ragon M, Tavera R, López-Archilla AI and López-García P (2015). Metagenome-based diversity analyses suggest a significant contribution of non-cyanobacterial lineages to carbonate precipitation in modern microbialites. Front Microbiol 6:797.