Effect of Salicylic Acid on the Growth, Photosynthetic Efficiency and Enzyme Activities of Leguminous Plant under Cadmium Stress

Abstract

The present study was designed with an objective to elucidate the effect of the exogenous application of 10 -5 M of salicylic acid (SA) to the foliage of the chickpea plants exposed to 0, 25, 50 or 100 mg cadmium (Cd) per kg of soil. The foliage of the plants grown in soil amended with varying doses of Cd was sprayed with 10 -5 M of SA at 30 days after sowing (DAS). The plant samples were collected at 60 and 90 DAS to assess various parameters. The damage caused due to the Cd exposure was partially overcome by the exogenous application of SA. The SA treatment resulted in a significant increase of growth, photosynthesis, yield and the activity of antioxidative enzymes viz. catalase, peroxidase and superoxide dismutase in the plants exposed to 0, 25 or 50 mg Cd per kg of soil. However, the treatment did not prove to be fruitful in alleviating completely the stress generated by 100 mg Cd per kg of soil.

Plant growth regulators improve growth, photosynthesis, mineral nutrient and antioxidant system under cadmium stress in menthol mint (Mentha arvensis L.)

“…In fact, decreased Rubisco activity by Cd stress has been attributed due to the low activity of CA or Cd-Mg replacement in active centers in Cd-stressed plants (Siedlecka et al 1998). Similar SA mediated increase in CA activity under Cd stress was reported by Alyemini et al (2014) and Ahmad et al (2018).…”

Effects of Exogenous Application of Protocatechuic Acid and Vanillic Acid to Chlorophylls, Phenolics and Antioxidant Enzymes of Rice (Oryza sativa L.) in Submergence

“…Ecologically, rice can survive under water for a short period due to adaptive physiological mechanisms including enzymatic and non-enzymatic factors [ 10 , 11 ]. Regarding the former factor, an antioxidant enzyme system has been discovered in plants subjected to biotic and abiotic stresses producing numerous varieties of activated oxygen species consisting of superoxide, singlet oxygen, hydroxyl radicals, and hydrogen peroxide [ 12 , 13 ].…”

Accumulation potential of Indian mustard (Brassica juncea var. arawali) and fenugreek (Trigonella foenum-graecum L.) planted on lead and nickel contaminated soil

“…Dry weight was higher in SA treated plants as compared to Pb + Ni treatment (T3). Alyemeni et al (2014) also found a significant increase of dry mass of Cicer arietinum plants with the application of 10 -5 M salicylic acid.…”