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Abstract

A study was carried out to investigate the vesicular- arbuscular mycorrhizal association with the medicinal plants of Rawalpindi and Islamabad. Mycorhizal infection was studied in thirty-two medicinal plants. Slide length method was used to estimate vesicle, arbuscule and hyphal infection percentages. Number of spores per 50 gm of soil was counted by wet-sieving and decanting method. Soil pl and EC were measured. Soil was also analyzed for N. P. K. organic matter and CaCO, contents. Mycorthizal infection was found in all the medicinal plants studied. The study of spores yielded two types namely Glomus sp. and Gigaspora sp. Antibactcrial activity of root extracts of some of these plants for bacterial pathogens viz., Staphylococcus aureus. Escherichia col and Klebsiella pneumoniae was also conducted Most of the studied plants exhibited antibacterial activity. These findings can be used to grow AM inoculated medicinal plants, which will provide more raw material for the commercial production of drugs.

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