Ameliorative capacity of salicylic acid and nutrients (Ca, P, and Mg) against aluminum toxicity in sensitive pea (Pisum sativum L.)

• Published in: Arabian journal of geosciences 2023, Vol.16 (5), Article 348
• Main Authors: Ansari, Mohd Talha, Ramjan, Md, Yadav, Vivek, Ansari, Majhrool Hak, Ali, Muhammad Fraz
• Format: Article
• Language: English
• Subjects: Accumulation; Acidic soils; Aluminium; Aluminum; Ascorbic acid; Calcium chloride; Carotenoids; Catalase; Chamaecrista; Crop growth; Dry matter; Earth and Environmental Science; Earth science; Earth Sciences; Genotypes; Hydrogen peroxide; Legumes; Limiting factors; Lipid peroxidation; Lipids; Magnesium; Nutrients; Original Paper; Peas; Peroxidation; Photosynthesis; Photosynthetic pigments; Pisum sativum; Plant growth; Restoration; Salicylic acid; Seedlings; Toxicity; Uptake
• ISSN: 1866-7511; 1866-7538
• DOI: 10.1007/s12517-023-11445-7

Aluminum (Al) toxicity is a limiting factor for crop growth, especially legumes in acid-affected soil of the world. The present study was done with the objective to study the comparative ameliorative property of exogenously added Ca, Mg, P, and salicylic acid on Al stress in pea ( Pisum sativum ) grown in nutrient media. Treatment of seedling with 24 ppm Al resulted in an inhibition of root/shoot growth with less dry matter production along with an enhanced level of superoxide, H 2 O 2 , and lipid peroxidation. Al toxicity in a pea seedling caused significant variation in the activity of an antioxidative enzyme. The application of 1 mM CaCl 2 , 0.5 mM H 3 PO 4 , MgSO 4 (0.5 mM and 0.25 mM), and SA (100 μM) reduced the negative effect of Al stress in the pea seedling marked by the restoration of seedling growth and suppression of Al accumulation, superoxide, and H 2 O 2 content. MgSO 4 and SA treatment elevated the Al-induced decline in photosynthetic pigment. Exogenously, an addition of Mg, P, and SA elevated the Al-induced decrease in the activity of SOD, catalase, vitamin C, and carotenoids. Application of 0.5 mM H 3 PO 4 resulted in 47% recovery of root growth and 60% of shoot growth along with the highest suppression of Al uptake and ROS accumulation. Among all the treatments, the application of the 0.5 mM P under Al stress appeared a potential tool in restoring the growth and physiological activities in sensitive pea genotype (AP-3) indicating the best ameliorating agent under Al toxic condition.