Prof. Cecilia Gotor is a Research Professor from the National Research Council (CSIC) at the Institute of Plant Biochemistry and Photosynthesis (IBVF), Spanish National Research Council and University of Seville. She holds a Ph.D. in Chemistry and has had postdoctoral stays in the USA, at the University of Nebraska-Lincoln and Rutgers State University. She has a long and solid experience in plant sulfur metabolism and leads a research group focused on the study of the biosynthesis and metabolism of cysteine and, in recent years, on plant signaling by molecules related to cysteine, mainly the intracellular signaling by hydrogen sulfide. Her research group has been a pioneer in deciphering the mechanisms of action of hydrogen sulfide in plants through the post-translational modification of persulfidation.