Protective Role of the Seaweed Halimeda opuntia Extract on Cadmium-Stressed Eruca sativa (Mill.) | ||||
| Egyptian Journal of Botany | ||||
| Article 19, Volume 56, Issue 3, September 2016, Page 863-881 PDF (526.4 K) | ||||
| Document Type: Regular issue (Original Article) | ||||
| DOI: 10.21608/ejbo.2016.3779 | ||||
 View on SCiNiTO | ||||
| Abstract | ||||
| SEEDS of E. sativa were primed with aqueous extract of the …….chlorophyte Halimeda opuntia or with distilled water for 3 h and sown in clay sandy soil (2:1 w/w). Plants were irrigated with tap water for 14 days, then with 20 mM CdCl2 solution or tap water for 21 days. Cadmium stress caused a significant reduction in water content, photosynthetic pigments, soluble sugars, soluble proteins, and caused oxidative damage, as characterized by increasing malondialdehyde content, proline and phenolic compounds. However, presoaking in H. opuntia extract enhanced the previous parameters in case of control plants. Additionally, the interactive combination of cadmium stress and algal extract showed a significant amendment of cadmium stress on water content, photosynthetic pigments, sugars and protein contents and relatively declined proline, phenolic compounds and MDA. SDS-PAGE of leaf proteins showed alternation in protein profile in treated plants represented in appearance and disappearance of specific bands. | ||||
| Keywords | ||||
| Eruca sativa; Halimeda opuntia; cadmium; Photosynthetic pigments; proteins; PAGE; Malondialdehyde | ||||
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