Screening of economically important microorganisms from Thrissur kol paddy wetland

Economically important microorganisms were isolated from paddy wetlands of Thrissur kol. They were selected based on their nitrogen fixing capacity and other properties which make them eligible for future use as plant growth promoting bio fertilizers. 26 beneficial isolates were studied. Among the 26 isolates four of them have antimicrobial activity and the isolate N7 was shown to inhibit all the four human pathogens tested. Which may be further studied for their ability to produce antimicrobial compound with bioactivity. Out of 26 isolates N1, PK4, C3 and C12 showed all the three plant growth promoting properties including nitrogen fixation, siderophore production and phosphate solubilization. And the isolate C4 was showed the production of all the three enzymes such as amylase, lipase and cellulase. The selected isolates may find future prospect in the pharmaceutical field and also in various industries for enzyme production. The nitrogen fixing, siderophore producing and phosphate solubilizing isolates can be used in agricultural fields as plant growth promoting bio fertilizers.