JOURNAL OF CULTURE COLLECTIONS

Volume 5, 2006-2007, pp. 73-77

ISOLATION AND CHARACTERIZATION OF

SULPHUR OXIDIZING BACTERIA

Rajagopal Vidyalakshmi^1* and R. Sridar²

¹Paddy Processing Research Centre, Thanjavur-4, Tamil Nadu, India;

²Department of Microbiology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India

^*Corresponding author, e-mail: onlyvidu@yahoo.co.in

Summary

Sulphur oxidizing bacteria were isolated from different samples viz., paddy rhizosphere, pulse rhizosphere, sewage, biogas slurry, tannery effluent and mine soil. Out of the 28 isolates obtained, 14 were screened based on their efficacy to reduce the pH of the growth medium from 8.0 to £ 5.0. The selected isolates were characterized and related to the genus Thiobacillus.

Key words: sulphur oxidizing bacteria, Thiobacillus, sulphate.

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