Allelophatic and Anti-Microbial Activities of Aqueous Extract of Allium Sativum

Abstract

The phytochemical screening of Allium sativum was carried out and the  presence of phenolics, glycosides and flavonoids were revealed in large quantities. Allium sativum aqueous extract has an enhancing capability on the growth of both bean and maize seedling with shoot growth rate of 34.49 ± 0.35%and 21.35 ± 0.25% taller than the control at 2% concentration respectively. Six pathogenic microorganisms namely Pseudomonas aeruginosa, Klebsiella pneumonia, Escherichia coli, Staphylococcus aureus, Aspergilleus niger and Rhizopus spp. were used for anti-microbial test. At concentration of 10% of Allium sativum  aqueous extract, the growth of all bacterial and fungi used were inhibited except Rhizopus  spp.. E.coli was the most inhibited with 45% inhibition rate at 10% concentration of the extract. The aqueous extract of Allium sativum serves as a growth enhancer and display good anti-microbial properties.