Potential role of L-glutamic acid in mitigating cadmium toxicity in lentil (Lens culinaris Medik.) through modulating the antioxidant defence system and nutrient homeostasis

Using phosphate fertilizers and wastewater as a source of irrigation residuals from industries have considerably increased the level cadmium (Cd) in soil which severely reduced growth yield crop. L-glutamic acid (L-Glu), an amino acid, plays key roles plant stress tolerance. Hence, current study was conducted to determine potential role L-Glu pre-treatment alleviating Cd-induced toxicity lentil (Lens culinaris Medik.). Lentil seedlings were exposed two doses Cd (1 2 mM CdCl2) with or without 10 pre-treatment. The results suggested that high dose negatively affected shoot dry weight, root photosynthetic pigments (chlorophylls carotenoids). Furthermore, induced severe oxidative damage, reduction catalase (CAT) activity ascorbate (AsA) content, accumulation both roots shoots. Adding protected thus improved seedlings. In addition, enhanced content; enzymes such catalase, peroxidase, monodehydroascorbate reductase, glutathione peroxidase. also uptake translocation, turn alleviated damage Cd-stressed indicated this chemical. Results suggest reduces by inhibiting reducing damage.