Abstract

Mycorrhizal, non-mycorrhizal and mycorrhizal with PGPR’s treated Strobilanthes ciliatus extracts (aqueous, 80% ethanol, petroleum ether, benzene, chloroform and methanol) were tested against two gram positive (Bacillussubtilis, Staphylococcusaureus), and two gram negative (Escherichiacoli, Pseudomonasaeruginosa) bacterial strains and two fungal strains (Candida sp., Aspergillus sp.). The antimicrobial activity was assessed by disc diffusion method. The test plant extracts have varied activity against pathogens except benzene and chloroform. In general, petroleum ether extract and ethanolic extract of mycorrhizal, non-mycorrhizal and mycorrhizal with PGPR’s treated S. ciliatus were highly effective against the tested microbes.The antibacterial activity of petroleum ether and 80% ethanolic extracts of S. ciliatus exhibited moderate activity against all the four bacterial strains when compared with standard Ciprofloxacin by zone of inhibition.The antifungal activity of S. ciliatus showed good activity against Aspergillusflavusfollowed by ethanolic extract of standard Clotrimazole