Madras Agricultural Journal
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STUDIES ON CHROMIUM TOLERANCE IN AZOSPIRILLUM

Abstract

Azaspirillum cultures were examined for their tolerance to the heavy metal chromium. Different methods of assays were tested to assess the tolerance. The cultures were able to tolerate chromium upto a concentration of 1000-1400 pg ml. The tolerance level was found to be comparatively high in all the cultures examined.

Keywords: Azospirillum. Chromium toxicity, Paper disc assay, Tube dilution assay

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