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First report of Lasiodiplodia theobromae causing jackfruit (Artocarpus heterophyllus) brown rot in the Philippines

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Abstract

Jackfruit (Artocarpus heterophyllus) brown rot has been observed in Los Baños, Laguna, Philippines. The disease was characterized by dark brown to black discoloration in the center of the lesion, advancing radially with a yellow to brown margin. The lesion center has grayish mycelial mass and is relatively more tender than the margin and unaffected areas. Only one fungus was isolated and identified as Lasiodiplodia theobromae based on combined morphological and molecular characterization assays. The fungus was pathogenic to jackfruit and showed brown rot 6 days post-inoculation. The same fungus was reisolated from the inoculated sites, thus establishing Koch’s postulate. To our knowledge, this is the first confirmed report of jackfruit brown rot caused by Lasiodiplodia theobromae in the Philippines.

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Authors and Affiliations

  1. Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, 4031, Laguna, Philippines

    April Dawn Taylaran, Irish Bagsic-Posada, Fe Dela Cueva & Mark Angelo Balendres

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  1. April Dawn Taylaran
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  2. Irish Bagsic-Posada
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  3. Fe Dela Cueva
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  4. Mark Angelo Balendres
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Correspondence to Mark Angelo Balendres.

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Taylaran, A.D., Bagsic-Posada, I., Cueva, F.D. et al. First report of Lasiodiplodia theobromae causing jackfruit (Artocarpus heterophyllus) brown rot in the Philippines. Indian Phytopathology 74, 1151–1153 (2021). https://doi.org/10.1007/s42360-021-00392-6

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  • DOI: https://doi.org/10.1007/s42360-021-00392-6

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