Investigation of Medicinal Activity of Four Imported Trees to Libya Against Some Pathogens.
Keywords:Imported trees, , medicinal activity, , human pathogenic bacteria, Plant-pathogenic fungi.
Many imported trees have been included in Libyan Flora data Base, but not all of its Bio-activity was studied, especially medical in a new environment. Therefore, this work was carried out to Investigate the medicinal activity of four imported trees (Acaciasaligna, Acacia nilotica, Brachychiton populneus and Leucaena leucocephala), and evaluate the activity of the aqueous extracts of leaves at a concentration 200mg/ml against four various types of human pathogenic bacteria (Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Proteus vulgaris), and Plant-pathogenic fungi (Aspergillus niger, Botrytis cinerea, Rhizopus microsporus and Fusarium solani). The antibacterial activity was determined by disk diffusion, and the antifungal activity by poisoned food technique. The results showed the inefficiency of all imported trees leaves extracts against all bacteria types, while, was have good activity against most plant-pathogenic fungi tested, Commonly, R.microsporus was the most affected fungus for all the extracts tested, also, the results showed that L.leuceana extract is more effective as an antifungal than other extracts. Data in this study indicated the potential of using Imported trees as an environmentally friendly Fungicide.
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