Journal of Pure and Applied MicrobiologyVol. 4 No. 2

Chemical Characterization and Antifungal Activity of Siderophores of Pseudomonas stutzeri EGB3 Isolated from the GUT of Earthworm (Eisenia foetida)

N.D. Prasanna*, K.Vijayalakshmi, P. Anuradha, G. Revathi, S.K. Shaheen, K. PavanaJyotsna and P. Devika

Department of Applied Microbiology, Sri Padmavathi Mahila University, Tirupati - 517 502, India.

Received on 04 March 2010 and accepted on 11 June 2010

 

ABSTRACT

Pseudomonas stutzeri, an Earthworm (Eisenia foetida) gut bacteria produces extracelluar siderophores when grown in succinic acid medium under iron deficiency. The siderophores were found to be pyochelin type. These siderophores were antagonistic to fungal pathogens like Alternaria alternata, Fusarium oxysporum, F.solani, F.moniliformae, F.udum, Macrophomena phaseolina, Rhizoctonia solani, Colletotrichum capsicii, Aspergillus flavus and A.niger.

Keywords : Siderophores, Pseudomonas stutzeri, phytopathogens, pyochelin, antagonistic activity.