Abstract
The rhizomes of Zingiber cassumunar exhibited strong fungitoxic action against Rhizoctonia solani, the damping-off pathogen. On chemical and spectral investigations, the antifungal compound was found to be zerumbone — a sesquiterpene. Its minimum effective dose against R. solani was 1000 ppm, much lower than some commercial fungicides. Zerumbone had fungistatic activity, a narrow fungitoxic spectrum and was not phytotoxic. Moreover, when used as a seed treatment, zerumbone could control damping-off disease of Phaseolus aureus caused by Rhizoctonia solani by 85.7%.
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Kishore, N., Dwivedi, R.S. Zerumbone: a potential fungitoxic agent isolated from Zingiber cassumunar Roxb.. Mycopathologia 120, 155–159 (1992). https://doi.org/10.1007/BF00436393
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DOI: https://doi.org/10.1007/BF00436393