Principles of Plant Pathology

The scientific study of diseases in plants that are caused due to pathogens and environmental factors is under the scope of plant pathology. Some common pathogens are fungi, bacteria, viruses, protozoa, etc. Pathogens typically infect the plant through the release of toxins, cell wall degrading enzymes and effector proteins. Some abiotic factors such as frost, drought, poor drainage, deposition of mineral salts, etc. also have a significant effect on the incidence of physiological plant dis...