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Antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense.

The in vitro antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense Race 4 (FocR4) the causal agent of banana wilt was investigated. Chitosan at all concentrations tested reduced the hyphal growth of FocR4 on potato dextrose agar media and recording maximum inhibition of 76.36% at...

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Main Authors: Al-Hetar, M. Y., Mior Ahmad, Zainal Abidin, Meon, Sariah, Wong, Mui Yun
Format: Article
Language:English
Published: Wiley Online Library 2011
Online Access:http://psasir.upm.edu.my/id/eprint/23651/1/Antifungal%20activity%20of%20chitosan%20against%20Fusarium%20oxysporum%20f.pdf
http://psasir.upm.edu.my/id/eprint/23651/
http://dx.doi.org/10.1002/app.33455
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spelling my.upm.eprints.236512016-02-10T00:42:21Z http://psasir.upm.edu.my/id/eprint/23651/ Antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense. Al-Hetar, M. Y. Mior Ahmad, Zainal Abidin Meon, Sariah Wong, Mui Yun The in vitro antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense Race 4 (FocR4) the causal agent of banana wilt was investigated. Chitosan at all concentrations tested reduced the hyphal growth of FocR4 on potato dextrose agar media and recording maximum inhibition of 76.36% at 8 mg/mL. The inhibitory effect was found to increase as chitosan concentration increases. The 50% effective concentration value was estimated by probit analysis, and it was 1.4 mg/mL. Chitosan was more effective in potato dextrose broth where it completely inhibited the mycelial growth of FocR4 at all concentrations tested. Chitosan inhibited the sporulation of FocR4 by a maximum of 96.53% at 8 mg/mL chitosan, and 100% inhibition for spore germination was recorded at all concentrations tested. Chitosan at concentrations of more than 1.6 mg/mL was also found to induce morphological changes in FocR4 characterized by agglomeration of hyphae, abnormal shapes, vesicles, or empty cells devoid of cytoplasm in the mycelia. Wiley Online Library 2011-05-15 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23651/1/Antifungal%20activity%20of%20chitosan%20against%20Fusarium%20oxysporum%20f.pdf Al-Hetar, M. Y. and Mior Ahmad, Zainal Abidin and Meon, Sariah and Wong, Mui Yun (2011) Antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense. Journal of Applied Polymer Science, 120 (4). pp. 2434-2439. ISSN 0021-8995 http://dx.doi.org/10.1002/app.33455 10.1002/app.33455
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The in vitro antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense Race 4 (FocR4) the causal agent of banana wilt was investigated. Chitosan at all concentrations tested reduced the hyphal growth of FocR4 on potato dextrose agar media and recording maximum inhibition of 76.36% at 8 mg/mL. The inhibitory effect was found to increase as chitosan concentration increases. The 50% effective concentration value was estimated by probit analysis, and it was 1.4 mg/mL. Chitosan was more effective in potato dextrose broth where it completely inhibited the mycelial growth of FocR4 at all concentrations tested. Chitosan inhibited the sporulation of FocR4 by a maximum of 96.53% at 8 mg/mL chitosan, and 100% inhibition for spore germination was recorded at all concentrations tested. Chitosan at concentrations of more than 1.6 mg/mL was also found to induce morphological changes in FocR4 characterized by agglomeration of hyphae, abnormal shapes, vesicles, or empty cells devoid of cytoplasm in the mycelia.
format Article
author Al-Hetar, M. Y.
Mior Ahmad, Zainal Abidin
Meon, Sariah
Wong, Mui Yun
spellingShingle Al-Hetar, M. Y.
Mior Ahmad, Zainal Abidin
Meon, Sariah
Wong, Mui Yun
Antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense.
author_facet Al-Hetar, M. Y.
Mior Ahmad, Zainal Abidin
Meon, Sariah
Wong, Mui Yun
author_sort Al-Hetar, M. Y.
title Antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense.
title_short Antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense.
title_full Antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense.
title_fullStr Antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense.
title_full_unstemmed Antifungal activity of chitosan against Fusarium oxysporum f. sp. cubense.
title_sort antifungal activity of chitosan against fusarium oxysporum f. sp. cubense.
publisher Wiley Online Library
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/23651/1/Antifungal%20activity%20of%20chitosan%20against%20Fusarium%20oxysporum%20f.pdf
http://psasir.upm.edu.my/id/eprint/23651/
http://dx.doi.org/10.1002/app.33455
_version_ 1643828123895070720
score 13.211869

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