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- Title
Uptake and Distribution of Cadmium and Copper by Solanum lycopersicum L. and Changes in the Metabolite Production.
- Authors
Kanza Saleem; Zaman, Aisha; Butt, Tayyab Ashfaq; Mirza, Cyrus Raza; Iqbal, Ameena; Khan, Aqib Hassan Ali; Yousaf, Sohail; Iqbal, Mazhar
- Abstract
Heavy metal contamination impacts plant growth and productivity by causing damage at all levels of plant organization, making it one of the most significant abiotic stressors. This study evaluated the uptake and distribution of cadmium (Cd) and copper (Cu) in Solanum lycopersicum L. and identified the antioxidant enzyme activity and tolerance capacity. In Hoagland's nutrient solution, plants were exposed to Cd and Cu for 21 days. Fresh biomass of roots and shoots, root length, Cd and Cu accumulation and antioxidants were determined. Fresh biomass of roots and shoots was maximum in control treatment. A decline of 87 and 69% in root and shoot fresh weight was observed, respectively, at 100 µM of Cd as compared to the control. While a decline of 62 and 84% in root and shoot fresh weight was observed, respectively, at 20 µM of Cu as compared to control. Root growth decreased due to Cd and Cu stress as no root growth was measured at 20 µM of Cu, and the lowest root increment of 0.12 cm was observed at 100 µM of Cd. Maximum accumulation was found at 75 µM of Cd and 20 µM of Cu where roots accumulated greater as compared to shoots. In the leaves, the CAT, APX, and SOD activities increased at almost all levels of Cd and Cu. S. lycopersicum showed significant reduction in biomass and is not tolerant or accumulator of Cd and Cu. Chelators or soil conditioners need to be used to reduce the anticipated metal toxicity.
- Subjects
COPPER; TOMATOES; CADMIUM; SOIL conditioners; PLANT productivity; HEAVY metals; ROOT growth
- Publication
Biology Bulletin, 2023, Vol 50, Issue 3, p390
- ISSN
1062-3590
- Publication type
Article
- DOI
10.1134/S1062359022602245