In vitro Evaluation of Different Elicitors against Fusarium Wilt of Musa textilis Nee (Abaca) caused by Fusarium oxysporum f. sp. cubense

Elizabeth P. Parac, Ruben Gapasin

Abstract


Fusarium wilt caused by Fusarium oxysporum f. sp. cubense (Foc) is one of the most important diseases of abaca. The induction of systemic acquired resistance (SAR) in abaca plants offers a long lasting and sustainable approach in managing this disease. Pure culture of Foc isolates is inoculated into the 3-month old tissue cultured plants for pathogenicity test. Different elicitors
are tested in vitro and in vivo against Foc for induction of SAR in abaca. This study was conducted in order to: evaluate the antifungal property of different potential elicitors of resistance against abaca wilt disease in vitro and determine the efficacy of each elicitor for inducing SAR in abaca for the control of abaca wilt disease. The elicitors used such as irradiated chitosan (shrimp), nonirradiated chitosan (shrimp and crabs), Salicylic acid (SA), Silicon dioxide (SiO2), G-aminobutyric acid (GABA), and Benzothiadiazole (BTH Boost) have no antifungal property against the Foc. Both the phosphonate and benlate treatments have antifungal activity in vitro.The use of these elictors to induce SAR in abaca may be used as an alternative to the use of fungicides in
Fusarium wilt disease.


Keywords


anti-fungal property, Fusarium oxysporum f. sp. cubense, Fusarium wilt disease, systemic acquired resistance (SAR)

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References


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