Eco-physiological Response of Solanum nigrum to Cd and Ni Stress under Hydroponic Conditions | ||||
| Egyptian Journal of Botany | ||||
| Article 20, Volume 60, Issue 2, August 2020, Page 563-574 PDF (1.49 MB) | ||||
| Document Type: Regular issue (Original Article) | ||||
| DOI: 10.21608/ejbo.2020.19487.1386 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Amany Aboelkassem   1; Ahmed Elkhatib1; Somia Sweri2; Ola Alaam3; Omer elshikh1
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| 1Botany and Microbiology Department, Faculty of Science, Sohag University, Sohag, Egypt | ||||
| 2Soils, Water and Environment Research Institute, Agricultural Research Center, Giza, Egypt | ||||
| 3Soils, Water and Environment Research Institute, Agricultural Research Center, Sohag, Egypt | ||||
| Abstract | ||||
| SOLANUM nigrum L. was transplanted from soil to hydroponic culture system with Hoagland’s solution to study its eco-physiological response to Cd and Ni toxicity. The plants were exposed to 10 or 25mg/L Cd or Ni over 7 days before harvesting for analysis. The findings of this study provided better understanding of stress adaptation in S. nigrum under Cd and Ni stress. The photosynthetic pigments and activities of antioxidant enzymes were estimated in the plant leaves. Chlorophyll content and carotenoids decreased progressively with increasing concentrations of both metals. Activities of the antioxidant enzymes POD, APX, CAT, and SOD in the leaves increased significantly by exposure to the high levels for both metals. The plant responses was varied with both metal and tested concentrations, reflecting the potentiality of using S. nigrum as phytoremediator of Cd and Ni polluted water in hydroponic culture system. | ||||
| Keywords | ||||
| Antioxidant enzymes; Oxidative stress; Phytoremediation; Plant pigments; Stress tolerance | ||||
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