The monograph is written for specialists in plant physiology and biochemistry, structural chemistry of polymers, and for specialists in agriculture and in the paper und pulp industry. It is an indispensable source of information.The monograph is written for specialists in plant physiology and biochemistry, structural chemistry of polymers, and for specialists in agriculture and in the paper und pulp industry. It is an indispensable source of information.1 Biosynthesis of Cellulose.- 1 Cell Wall Composition.- 1.1 Cellulose.- 1.2 Hemicelluloses.- 1.3 Pectic Substances.- 1.4 Cell Wall Proteins.- 1.5 Lignin.- 1.6 Interaction Between Cell Wall Polymers.- 1.7 Changes in Content of Cell Wall Components.- 1.8 Possible Mechanisms of Endogenous Regulation of Cellulose Biosynthesis.- 1.8.1 Genetic Regulation.- 1.8.2 Regulation of Enzymatic Activity.- 1.8.3 Membrane Regulation.- 1.8.4 Substrate Regulation.- 1.8.5 Energetic Regulation.- 2 Objects Useful for the Study of the Synthesis of Cell Wall Polysaccharides.- 2.1 Cotton Fiber.- 2.2 Acetobacteria.- 2.3 Isolated Protoplasts.- 2.4 Methods for Extraction of Cell Wall Polysaccharides.- 3 Sequence of Reactions of Biosynthesis of Cellulose and Other Structural Polysaccharides.- 3.1 Production of Nucleoside Diphosphate Glucose in Photosynthetic Cells.- 3.2 Nucleoside Diphosphate Sugars as Intermediates in the Synthesis of Polysaccharides.- 3.3 On the Role of Membrane-bound Lipids and Proteins as Intermediates in the Synthesis of Matrix Polysaccharides.- 3.4 Callose as a Possible Intermediate in the Synthesis of Cellulose.- 3.5 Synthesis of Cell Wall Proteins.- 4 Synthesis of Structural Polysaccharides: Localization of Reaction Sites.- 4.1 On the Role of Golgi Apparatus in the Synthesis of Hemicelluloses and Pectic Substances.- 4.2 Synthesis of Cellulose in the Plasmalemma and Properties of the Cellulose Synthetase Complexes.- 4.3 Inhibitors of Cellulose Biosynthesis.- 4.4 Influence of Microtubules on the Orientation of Cellulose Mil“M