Volume 14, Issue 69 (vol. 14, no. 69 2025)
2025, 14(69): 57-72 |
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Oraee A, Oraee T. Investigation of the effects of cadmium stress and the modulating role of potassium on the physiological and biochemical responses of Russian Sage (Perovskia atriplicifolia). Plant Process and Function 2025; 14 (69) : 4
URL: http://jispp.iut.ac.ir/article-1-2207-en.html
URL: http://jispp.iut.ac.ir/article-1-2207-en.html
1- Department of Plant Sciences, Medicinal Plants, Eqbal Lahoori Higher Education Institute of Mashhad, Iran , a.oraee@eqbal.ac.ir
2- Department of Horticulture and Green Spaces, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran
2- Department of Horticulture and Green Spaces, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran
Abstract: (24 Views)
Soil contamination with heavy metals, particularly cadmium, poses a significant challenge in medicinal plant production. Conversely, nutrients like potassium can play a vital role in mitigating the adverse effects of these stresses. This study aimed to investigate the effect of potassium in alleviating cadmium stress in the medicinal plant Russian Sage. The experiment was conducted as a factorial design in a complete randomized block design with three replicates, evaluating two levels of potassium and three levels of cadmium in the year 2024. Parameters such as electrolyte leakage, relative water content of leaves, chlorophyll a, chlorophyll b, total chlorophyll, malondialdehyde, total phenols, carbohydrates, proline, antioxidant activity, and activities of peroxidase and catalase enzymes were assessed. Results showed that cadmium significantly reduced physiological traits and increased oxidative damage indicators such as electrolyte leakage and malondialdehyde (by 53.4%) in Russian Sage. Conversely, higher potassium levels helped maintain chlorophyll content (2.43 mg g-1 FW) and enhanced defense compounds, including carbohydrates (1.29 mg g-1 DW), proline (0.53 μmol g-1 FW), and phenols (26.3 μg g-1 DW), as well as antioxidant enzyme activities under 5 μM cadmium conditions. The interaction effect between potassium and cadmium was significant across all traits, with potassium effectively mitigating the negative impacts of cadmium stress. Overall, the findings suggest that potassium application can serve as an effective strategy to reduce cadmium-induced damage and improve Russian Sageʼs tolerance in contaminated soils.
Article number: 4
Type of Study: Research |
Subject:
Toxic ions stress
Received: 2025/04/27 | Accepted: 2025/06/10 | Published: 2025/12/16
Received: 2025/04/27 | Accepted: 2025/06/10 | Published: 2025/12/16
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