Impact of nano calcium hydroxide and calcium oxide on some metabolic activities and phenolic compounds of Lupinus termis seedlings | ||
| Delta Journal of Science | ||
| Article 10, Volume 37, Issue 2, December 2016, Pages 215-227 PDF (2.62 M) | ||
| Document Type: Research and Reference | ||
| DOI: 10.21608/djs.2016.139956 | ||
| Authors | ||
| Awatif A. Mohsen1; M. El-Kemary2; Samha M.A. Dowidar1; Shaimaa A. Abo-Hamad1; M. A. Elhaak1; Basma M. M. Khalaf1 | ||
| 1Botany Department Faculty of Science, Tanta University | ||
| 2Chemistry Department, Faculty of Science, Kaferelsheikh University | ||
| Abstract | ||
| The effect of 0.5, 1.0 and 2.0 mM nano calcium hydroxide Ca(OH)2 and calcium oxide CaO or bulk calcium carbonate CaCO3 on growth and metabolic changes of Lupines termis seedlings was assessed. Root fresh and dry weights were increased by nano CaO at 0.5 and 1.0 mM compared with the control, while they were decreased by increasing nano Ca(OH)2. Shoot fresh and dry weights were increased by increasing the concentration of nano Ca(OH)2 and CaO reaching their maximum at 0.5 and 2.0 mM, respectively. Bulk CaCO3 concentrations increased root and shoot fresh and dry weights at the highest concentration (2mM). The photosynthetic pigments (chl.a, chl.b and carotenoids) were markedly increased with increasing the concentration of nano Ca (OH)2, nano CaO and bulk CaCO3 with the highest magnitude recorded for nano Ca(OH)2, while the lowest was for CaCO3. The total soluble carbohydrate biosynthesis of both shoot and root was reduced by nano calcium particles, whereas it was enhanced by bulk calcium compared with control. The root soluble protein was decreased by different concentrations of either nano or bulk calcium, while shoot soluble protein was increased by all calcium treatments compared with the control. The nano calcium especially Ca(OH)2 activated the protein metabolism compared with the bulk. The root and shoot phenolic compounds were decreased by different concentrations of either nano or bulk calcium, except of the shoot phenolic compounds at CaCO3. Nano CaO at 0.5 mM increased shoot phenolic compounds by 10% compared with control. | ||
| Keywords | ||
| Lupinus termis; Nano calcium; Bulk calcium; Photosynthetic pigment; Growth criteria; Carbohydrates; Protein; Phenolic compounds | ||
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