Acquisition of basic knowledge to understand the interactions amongst plants, pathogenic microorganisms and environment, and to know the effects of climate change on them: effects of climate change on plants and their microbiome, with basic elements of stress physiology; plant response to thermal, water, salinity, light and nutritional stress and air pollution; effects of climate on pathosystems. The presentation and discussion of case studies related to some of the main stresses in relation to climate change will enrich the professional preparation and stimulate the critical spirit of the student.