Amelioration of drought stress reduced effects by exogenous application of L- Phenylalanine on Moringa oleifera
Abdalla, A., Sadak, M., Abd Elhamid, E., Ezo, M. (2022). Amelioration of drought stress reduced effects by exogenous application of L- Phenylalanine on Moringa oleifera. EKB Journal Management System, 65(8), 523-532. doi: 10.21608/ejchem.2022.109253.4978
Aboelfetoh Abdalla; Mervat Shamoon Sadak; Ebtihal Abd Elhamid; Mohamed Ezo. "Amelioration of drought stress reduced effects by exogenous application of L- Phenylalanine on Moringa oleifera". EKB Journal Management System, 65, 8, 2022, 523-532. doi: 10.21608/ejchem.2022.109253.4978
Abdalla, A., Sadak, M., Abd Elhamid, E., Ezo, M. (2022). 'Amelioration of drought stress reduced effects by exogenous application of L- Phenylalanine on Moringa oleifera', EKB Journal Management System, 65(8), pp. 523-532. doi: 10.21608/ejchem.2022.109253.4978
Abdalla, A., Sadak, M., Abd Elhamid, E., Ezo, M. Amelioration of drought stress reduced effects by exogenous application of L- Phenylalanine on Moringa oleifera. EKB Journal Management System, 2022; 65(8): 523-532. doi: 10.21608/ejchem.2022.109253.4978

Amelioration of drought stress reduced effects by exogenous application of L- Phenylalanine on Moringa oleifera

Egyptian Journal of Chemistry
Article 47, Volume 65, Issue 8, August 2022, Page 523-532  XML PDF (263.31 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2022.109253.4978
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Authors
Aboelfetoh Abdalla1; Mervat Shamoon Sadak email orcid 2; Ebtihal Abd Elhamid3; Mohamed Ezo1
1Horticultural Crops Technology Department, Institute of Agricultural and Biological, National Research Centre, Giza, Egypt. P.O. 12622
2Botany Dept, National Research Centre, Cairo, Egypt
3Botany Dept, NRC
Abstract
Abstract:A field trial was conducted at 2018/2019 & 2019/2020 at National Research Centre, Experimental Station, Nubaria district, Beheira Governorate, Egypt, to investigate L-phenylalanine (Ph) (50, 100 and 150 mg/l) external treatments role on Moringa oleifera L plant development, productivity and nutritional value (carbohydrates%, protein% and some macro element contents), antioxidant compounds (flavonoids and phenol), antioxidant activity (DPPH%) and amino acid composition under water deficiency (drought stress). Drought stress decreased markedly morphological characters of Moringa oleifera plant (shoot length, leaves number, plant fresh and dry weights), photosynthetic pigments, yield components and carbohydrates%, protein%, N, P, K, Ca and Mg contents with marked increases in phenol and Flavonoid contents as well as, DPPH%. Meanwhile, exogenous application with Ph were effective in improving plant growth criteria and various studied physiological aspects at normal irrigation or drought stress conditions. Moreover, Ph external treatment increased markedly and significantly yield and its components, carbohydrates, protein, nitrogen, phosphorous, potassium, calcium and magnesium contents. Also Ph treatments caused more increases in phenol, flavonoids contents and antioxidant activity under normal irrigation or drought stress. 100 mg/l was the most effective concentration on alleviating drought stress adverse effect on Moringa oleifera plants.
Keywords
Amino acid; Antioxidant activity; Drought; Flavonoids; Moringa oleifera Phenolics; Phenylalanine
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