Antibacterial behaviour of Common Winter Season Weeds on Human Pathogens in Doon Valley, Uttarakhand, India

Weeds are plants which over dominate others by abundance, growth, and coverage, thus disturbing of ecosystems. Weeds are adapted well to grow in both unfavourable and favourable environments and cause yield and quality loss, competing with crops for resources. The resistance behavior against microbial diseases promote us to find the antimicrobial behavior of weeds grown in Dehradun during winter season against common pathogens. Out of the twelve extracts assayed, the extract of Euphorbia helioscopia was most active against all the studied bacterial strains. Therefore, Minimum Inhibitory Concentration (MIC) of this extract was determined against the selected bacteria. The MIC for different strains is 62.5mg/ml. Besides having antimicrobial activities, plants also be used as a source of anti diabetic and antioxidant potential due to presence of glycosides, tri terpenoids etc.