The Excretory Function of Higher Plants

1 Cellular Aspects of Secretory Activity in Plants.- 1.1 Significance of Secretory Processes for the Cell.- 1.2 Compartmentation of Metabolites and Mechanisms of Their Secretion.- 1.3 Secretion into the Free Space of the Cell.- 1.4 Secretion into the Vacuole.- 1.5 Idioblasts.- 2 Intratissular Secretion.- 2.1 Air-Bearing System of Plants.- 2.2 Internal Gases.- 2.3 Intratissular Secretory Structures.- 3 External Secretion.- 3.1 Guttation.- 3.2 Salt Glands and Secretion of Inorganic Salts.- 3.3 Secretion of Nectar.- 3.4 Secretion of Polysaccharides.- 3.5 Secretion of Proteins.- 3.6 Secretion of Essential Oils.- 3.7 Secretion of Resins.- 3.8 Secretion of Phenols.- 3.9 Secretion of Alkaloids.- 3.10 Secretion of Acetylcholine and Amines by Stinging Trichomes.- 4 Gas Excretion.- 4.1 The Pathways of Gas Release.- 4.2 Volatile Excretions as Complexes of Substances.- 4.3 Components of Gaseous Excreta.- 4.4 The Significance of Gas Excretion.- 5 Leaching.- 5.1 The Cell Wall as a Phase of Leaching.- 5.2 Leaching of Salts.- 5.3 Leaching of Organic Compounds.- 5.4 Dependence of Leaching on External Factors, Phase of Development, and Anatomy of Plants.- 5.5 Physiological Meaning of Leaching.- 6 The Elimination of Substances in Response to Extreme Factors.- 6.1 Injuries to Membranes Under Stresses.- 6.2 Metabolites Released Under Stress.- 7 Biological Effects of Plant Excreta.- 7.1 Growth Processes and Cell Destruction.- 7.2 Cellular Membranes as Targets for Action of Plant Excreta.- 7.3 Energetic Reactions.- 7.4 Metabolic Processes.- 7.5 Problems and Perspectives in the Use of Plant Excreta.- Conclusion.- References.- Index of Latin Names.