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Research Journal of Microbiology
  Year: 2011 | Volume: 6 | Issue: 2 | Page No.: 115-123
 
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Antifungal Activity of Turbinaria conoides and Evaluation for the Effective Concentration against the Infection of Beauveria bassiana in Silkworm Larvae

S. Sugnana Kumari, S.V. Subba Rao, Sunil Misra and U. Suryanarayana Murty

Abstract:
Research was aimed at investigation effect of dichloromethane and methanol (1:1) extract of seaweed brown algae, Turbinaria conoides for its antifungal activity against Beauveria bassiana an entomopathogenic fungus on silkworm based on in vitro by agar cups bioassay method and in viva application of crude seaweed algal extract to muscardine infected silkworm larvae. The extract of T. conoides has shown antifungal activity and inhibitory effect against this fungus through in vitro bioassay studies. The inhibitory effect increased with increased concentration of algal curde extract. Further, three different concentrations of this algal extract were tested against Beauveria bassiana infected silkworm larvae. The effective concentration was evaluated between 1000 to 1500 μg mL-1 of the algal extracts. It was established that with the application of these algal extract about 75 to 85% of larval mortality due to B. bassiana infection was controlled with out affecting the other qualitative and quantitative traits. Therefore, present communication sturdily dedicated to find out cheapest and eco-friendly disinfectant for prevent or treat fungal diseases in silkworm could be an alternative treatment process under disease management in sericulture industry.
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How to cite this article:

S. Sugnana Kumari, S.V. Subba Rao, Sunil Misra and U. Suryanarayana Murty, 2011. Antifungal Activity of Turbinaria conoides and Evaluation for the Effective Concentration against the Infection of Beauveria bassiana in Silkworm Larvae. Research Journal of Microbiology, 6: 115-123.

URL: https://scialert.net/abstract/?doi=jm.2011.115.123

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