Foliar treatment with nano-calcium carbonate improves H2O2-scavenging activity of the ascorbate-glutathione cycle in faba bean plants | ||||
| Labyrinth: Fayoum Journal of Science and Interdisciplinary Studies | ||||
| Articles in Press, Accepted Manuscript, Available Online from 15 June 2025 PDF (802.77 K) | ||||
| Document Type: Original full papers (regular papers) | ||||
| DOI: 10.21608/ifjsis.2025.386203.1116 | ||||
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| Authors | ||||
Mostafa M. Rady   1; Doaa' Saad2; Hesham Abbas2; Rasha Kamel2
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| 1Botany Department, Faculty of Agriculture, Fayoum University | ||||
| 2Botany Department, Faculty of Science, Fayoum University, El Fayoum 63514, Egypt | ||||
| Abstract | ||||
| Cadmium (Cd) is a poisonous metal that damages plant metabolism by increasing reactive oxygen species (ROS), including hydrogen peroxide (H2O2). This article aimed to study the effect of foliar spraying faba bean plants with 1.0, 2.0, or 3.0 mM of traditional calcium carbonate (T-Ca-1, T-Ca-2, or T-Ca-3, respectively) or 0.1, 0.2, or 0.3 mM of nano-calcium carbonate (N-Ca-1, N-Ca-2, or N-Ca-3, respectively) on plant growth, physio-biochemical attributes, and H2O2-scavenging activity of the ascorbate (AsA)-glutathione (GSH) cycle. In general, compared to the control (foliar spraying with distilled water), foliar treatment with all T-Ca and N-Ca levels significantly improved growth, root activity, physio-biochemical attributes, and H2O2-scavenging activity of the ascorbate-glutathione cycle in faba bean plants, with results of N-Ca levels outperforming those of T-Ca levels. Among all T-Ca and N-Ca levels, N-Ca-2 conferred the best results, increasing plant growth traits by about 40%, photosynthetic efficiency by about 36%, root activity by about 26%, Ca content by about 39%, leaf integrity (relative water content and membrane stability index) by about 24%, antioxidant levels of the AsA-GSH cycle (ascorbate and glutathione) by about 47%, enzyme activities of the AsA-GSH cycle (ascorbate peroxidase and glutathione reductase) by about 60%, while reducing H2O2 level by about 29%. Therefore, foliar spraying the faba bean plant with nano-calcium carbonate at a level of 0.2 mM could enhance plant growth and development by reinforcing the H2O2-scavenging activity of the AsA-GSH cycle. | ||||
| Keywords | ||||
| Vicia faba; Nanotechnology; Antioxidant activity; Sustainable agriculture | ||||
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