Insight into the Role of Exogenous Salicylic Acid on Plants Grown under Salt Environment

Abstract

Salicylic Acid (SA) is an endogenous growth regulator of phenolic nature, which participates in the regulation of physiological processes in plants. It plays an important role in the plant response to adverse environmental conditions such as salinity. Meanwhile, soil salinity is a major constraint to food production because it limits crop yield and restricts use of land previously uncultivated. The SA plays an essential role in preventing oxidative damage in plants by detoxifying super oxide radicals, produced as a result of salinity. A review was highlighted the exogenous application of the lower concentrations of salicylic acid proved to be beneficial in enhancing the photosynthesis growth and various other physiological and biochemical characteristics of plants. Based on the morphology of the plants and parameters investigation it was concluded that SA tolerant plant, made quicker response to abiotic stresses. In the present review, we have focused on the effect of exogenous application of SA ant its protective effects on changing antioxidant enzyme activity for the salt tolerance in plants.