ANALYSIS OF PHYTOCHEMICAL CONSTITUENTS, ANTI-MICROBIAL ACTIVITY AND MOLECULAR CHARACTERIZATION OF MEDICINAL WEED SONCHUS OLERACEUS L. USING RAPD MARKER

In present study, Himalayan weed Sonchus oleraceus extracts are screened for the occurrence of bioactive compounds, anti-microbial activity, and its molecular characterization using RAPD. The agar well diffusion method was used to detect anti-microbial activity of aqueous, methanol, chloroform and ethyl acetate extracts of S. oleraceus. The anti-microbial activity of different extract was checked at different concentrations i.e. at 150mg/ml, 200mg/ml, 250mg/ml and 300mg/ml against five bacteria namely Klebsiella pneumoniae, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Salmonella typhi. The anti-microbial activity of the different extracts of S. oleraceus was associated with the concentration. In phytochemical screening alkaloids, flavonoids, protein, carbohydrates, tannins, phenol, terpenoids and saponins were confirm in different extracts. The primers OPA-1, OPA-9, OPA-16, TC-1 and TC-3 were used in molecular characterization using RAPD against 14 samples collected from five districts namely Kangra, Una, Bilaspur, Hamirpur and Solan of Himachal Pradesh. Cluster analysis revealed that isolates H1 and H3, H2 and S2, U1 and U2 were showing maximum homology. In comparison to all the isolates, isolate K1 from the Kangra district showed least homology to all the other isolates from total covered five districts of Himachal Pradesh.