7th Edition of
Plant Physiology is the sub-discipline of Botany, which includes the study of all internal activities (chemical and physical process) in plants. The major part of plant physiology is phytochemistry, which is the study of biochemistry of plants.
Plant Physiology and Biochemistry study shows, plants produce wide variety of chemical compounds like pigments, enzymes and other compounds to function, which are useful for photosynthesis process. As plants can’t move, they defend themselves from herbivores pathogens by using chemical compounds which shows toxic affect, foul tasting. Few compounds play role against diseases, survival during drought, some attract pollinators to spread ripe seeds.
Plant Biochemistry deals with cells, tissues and organs and their interaction between them. Different kinds of cells and tissues are physically and chemically specialized to perform different functions. Roots acquire minerals from soil and acts as an anchor to the plant and leaves catch light in order to produce nutrients.
Plant Biochemistry study shows, plants control or regulate their internal functioning like they produce hormones which regulate as a signal cell to respond other part of the plant. Many flowering plants depend on the length of the night to bloom, which called as photoperiodism and ripening of fruits and loss of leaves are controlled by the production of ethylene gas by the plant.