بررسي اثرات ضد ميكروبي اسانس آويش و سنبله ارغواني و عصاره سماق و بنه به طريق INVITRO

The antibacterial effects of essential oils of Stachys inflata Benth, Thyms hotschyanus Bioss & Hohen, and the extracts of Rhus coriaria L. and Pistachia atlantica Desf. sub speices Kurdica were in Vitro on three bacteria: Klebsiella pneumoniae, Staphylococcus aureus and Staphylococcus epidermidis. We used Tube Dilution Method for essential oils and Disk Diffusion Method for extract of plants. Stachys was collected from vicinity of Jolfa and three other plants from vicinity of Urmia. To take essential oils fresh leaves of Stachys and Thyme were used and extract of Sumach and wild Maunt Atlas Pistacia took from dried truits. The results indicate that essential oils of Stachys and Thymus showed a significant effect on K. pneumoniae which was equal to the effect of Ceftazidin. The essential oils of both plants were effective on Sta. aureus but essetial oil of Stachys showed a higher effect which was same as the effect of Tobramycin and higher than Erythromycin. The extract of wild Maunt Atlas Pistachia had no effect on K. penumoniae, but extract of Sumach showed a high effect, wich was higher than the effect of Amoxycillin. The extract of both plants had little effect on Sta. aureus when compared with related antibiotics. The extract of Sumach and Maunt Atlas Pistachia were effective on Sta. epidermidis and their effect was higher than Erythromycin.