Pathogen identification of sweet potato wilt in Bình Tân, Vĩnh Long

Nguyen Hoang Minh Sang * , Nguyen Dac Khoa and Chau Hoang Trung Tin

* Corresponding author (sangsanglyly@gmail.com)

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Received: 10 May 2019
Revised: 04 Jul 2019
Accepted: 29 Nov 2019
Published: 30 Nov 2019
DOI: 10.22144/ctu.jen.2019.036
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Nguyen, H. M. S., Nguyen, D. K., & Chau, H. T. T. (2019). Pathogen identification of sweet potato wilt in Bình Tân, Vĩnh Long. CTU Journal of Innovation and Sustainable Development , 11(3), 36-41. https://doi.org/10.22144/ctu.jen.2019.036
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Vol. 11 No. 3 (2019)

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Abstract

This study aims at identifying the pathogen causing sweet potato wilt in Binh Tan district, Vinh Long province of Vietnam using morphological characterization, Koch’s postulates and sequencing the ITS region amplified by primer set ITS1/ITS4. A total of seven fungal isolates were obtained from 14 infected stem samples collected from Binh Tan district. Based on morphological characterization, two isolates CD3 and CD5 were classified into the Fusarium genus, one of the major plant pathogen genera causing wilt diseases. CD5 exhibited typical wilt symptoms using Koch’s postulates and was identified as Fusarium solani based on its ITS sequence. This result serves as a basis for further studies on disease management.
Keywords: Fusarium solani, pathogen identification, sweet potato, wilt

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