Additionally, research findings indicate that as the concentration of copper ions rises, the electrical conductivity and malondialdehyde (MDA) content of the extracellular exudate of petunias also increase significantly, thereby revealing a highly significant positive correlation between copper ions and both electrical conductivity and MDA [ 40 ].
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Folcisteine Safeguards Maize Against Copper-Cadmium Stress by Boosting the Activity of Photosynthesis-Related Enzymes and Antioxidant Defense Systems, Mediating Ascorbate-Glutathione Pathways and Hormonal Regulation.
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After treatment with NATCA + CuCd, the levels of IAA/ABA, ZR/ABA, and GA/ABA in maize seedling leaves showed an increasing trend compared to CuCd treatment.
Research findings have also indicated that under copper (Cu) stress, the ratio of GA to ABA in rapeseed leaves significantly decreases, and the ratios of IAA to ABA and ZR to ABA all exhibit a decreasing trend, with similar patterns in their changes [ 54 ].
The farmland soil around the smelting plant shows a clear trend of pollution and enrichment of Cd, Hg, Zn, Pb, and Cu, with an overall level of severe pollution.