Isolation and characterization of plant growth promoting microorganisms from Chilli rhizosphere

Shruthi Prakash H P

Volume : VI, Issue : V, May - 2017

Isolation and characterization of plant growth promoting microorganisms from Chilli rhizosphere

Shruthi Prakash H P

Abstract :

The present study was carried out with the objective to isolate and characterize chilli rhizospheric soil microorganism. The rhizosphere soil samples of Chilli plant were collected from different chilli plant cultivating areas of (Hunsur) Mysore, (Holenarsipura) Hassan regions of Karnataka, India. Bacteria, Azospirillum, Azotobacter, Pseudomonas, Actinomycetes, Rhizobia, and Fungi were isolated by dilution plate count technique employing 7 different media. The isolated microorganisms were characterized by their morphological, cultural and staining properties. Mycorrhizal fungi were identified as Penicillium sp., Fusarium sp., Pythium sp., Cladosporium sp., Tricoderma sp., Curvularia sp., Rhizopus sp., and Aspergillus. Different direct plant growth promoting activities of other 24 isolates viz. phosphate solubilization, siderophore production, IAA production were studied. It was found that out of 24 isolates, 1 bacterial isolate and 1 strain of Pseudomonas showed positive for siderophore production.