The Effect of Hormones on the Biosynthesis of Structural Polysaccharides

Abstract

Phytohormones represent powerful regulators of growth processes in plants. Mechanism of their action on plant cells presumably involves activation of reading off information from DNA (transcription), production thereby of additional matrix RNA molecules and then, in turn, of enzymes synthesized with RNA intermediacy thus activating cell metabolism as a whole. Phytohormone-induced alterations of cell-membrane permeability is of considerable importance as is also enhanced intensity of ATP formation during respiration and photosynthesis. Phytohormones, being natural metabolites, regulate the level of growth and development processes [210–214]. Credit should be given to the Soviet scientists [215, 216] for their contribution to the development of our knowledge of phytohormones.