Role of Proline and Salicylic Acid in Overcoming the Stress of Cadmium : Chickpea (Cicer arietinum)

Cadmium is a major industrial pollutant, and is easily taken up by plants and accumulated to high levels in the aerial organs thereby causing potential damage. When exposed to stressful conditions, plants accumulate an array of metabolites, particularly amino acids. Proline, an amino acid, plays a highly beneficial role in plants exposed to various stress conditions. Proline, when supplied exogenously at lower concentrations to plants exposed to various biotic and abiotic stresses, results in stress mitigation thereby enhancing growth and other physiological characteristics of plants. Salicylic acid is ubiquitously distributed in the entire plant kingdom. It was recognized as a plant hormone. The exogenous application of SA at suitable concentration has been found to enhance the activity of the antioxidative defense system thereby providing tolerance to the plants against oxidative burst.The work reported here focus on synergistic interaction between hormone, amino acid and metal. This book is useful research documents for students and researchers working in the area of environment