Phosphite (Phi), an analog of phosphate, is increasingly used worldwide as fungicide,
fertilizer and plant biostimulant. Studies using various plant systems provided insights on
how Phi is translocated in plants and on its mode of action against pathogens. However,
little evidence is present at the metabolite level, of the compounds present in plants that are
responsible in the enhanced resistance to pathogens. As Phi is used to control late blight,
the most devastating disease of potato, caused by the oomycete Phytophthora infestans, this …