Home > III International Symposium on Postharvest Pathology: Using Science to Increase Food Availability > In vitro effects of crab shell chitosan against mycelial growth of Botrytis sp., Penicillium sp. and Pilidiella granati

Articles

In vitro effects of crab shell chitosan against mycelial growth of Botrytis sp., Penicillium sp. and Pilidiella granati

Article number

1144_60

Pages

403 – 408

Language

English

Abstract

The antifungal activities of crab shell chitosan and fludioxonil (registered postharvest fungicide) were evaluated in vitro against Botrytis sp., Penicillium sp. and Pilidiella granati isolated from pomegranate fruit.
Mycelial growth of the pathogens was inhibited by both chitosan and fludioxonil in a dose-dependent manner, with complete inhibition at 10 and 0.01 mg mL^-1, respectively.
The concentration causing a 50% reduction in mycelial growth (EC₅₀) ranged between 0.5-2.2 mg mL^-1 and 0.1-0.5 μg mL^-1 for chitosan and fludioxonil, respectively.
This study has demonstrated that crab shell chitosan can be used to control pomegranate postharvest pathogens Botrytis sp., Penicillium sp. and Pilidiella granati. Sensitivity to chitosan may be species dependent and in this study P. granati was the most sensitive, with complete inhibition of mycelial growth at 1 mg mL^-1 of chitosan.

Publication

III International Symposium on Postharvest Pathology: Using Science to Increase Food Availability

Authors

K. Munhuweyi, C.L. Lennox, J.C. Meitz-Hopkins, O.J. Caleb, G.O. Sigge, U.L. Opara

Keywords

antifungal, chitosan, diseases, in vitro, pomegranate (Punica granatum L.)

Full text

https://doi.org/10.17660/ActaHortic.2016.1144.60

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