Y. El-Amier, S. Alghanem, O. Al-hadithy, A. A. Fahmy, M. El-Zayat
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引用次数: 3
摘要
本研究的目的是分析三种野生间胚属植物(M. crystallinum L.， M. forsskaolii Hochst.)的植物化学成分，并测定其抗氧化、抗菌和化感作用。Ex Boiss和M. nodiflorum L.)。研究物种的甲醇提取物的植物化学成分揭示了其强大的抗氧化活性的相当大的数量。野花草、结晶草和黄芪提取物的IC50值分别为386.51、592.97和752.23μg/ml。与标准抗生素比较，计算各提取物的抑菌活性指数。结核分枝杆菌对肺炎克雷伯菌、大肠杆菌、铜绿假单胞菌、金黄色葡萄球菌和枯草芽孢杆菌的抑菌效果优于氨苄西林和青霉素G。化感电位表明，所研究的中胚属植物对Chenopodium murale杂草表现出显著的植物毒性活性，且呈剂量依赖性。野花分枝杆菌样品在研究物种中具有最明显的植物毒性。
Phytochemical analysis and biological activities of three wild Mesembryanthemum species growing in heterogeneous habitats
The objective of this study was to analyze the phytochemicals and to determine the antioxidant, antibacterial and allelopathic potential of three wild Mesembryanthemum species (M. crystallinum L., M. forsskaolii Hochst. Ex Boiss and M. nodiflorum L.). The phytochemical composition of the methanolic extract of studied species revealed the considerable quantities that might be responsible for their powerful antioxidant activity. The IC50 values were 386.51, 592.97, and 752.23μg/ml for M. nodiflorum, M. crystallinum and M. forsskaolii extracts respectively. The antibacterial activity index was calculated for each extract in comparison with the standard antibiotics. M. nodiflorum showed higher potency than ampicillin and penicillin G against against Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Bacillus subtilis. The allelopathic potential showed that the studied Mesembryanthemum species expressed a significant phytotoxic activity against Chenopodium murale weed in a dose dependent manner. M. nodiflorum sample showed most phytotoxic effect among the studied species.
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