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First report of dam**-off caused by Pythium aphanidermatum in seedlings of wax gourd

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Abstract

In February 2023 in Japan, seedlings of wax gourd [Benincasa hispida (Thunb.) Cogn.] in seedling boxes developed water-soaked rot on hypocotyls typical of dam** off and eventually died. A Pythium sp. was isolated from the hypocotyls and was identified as Pythium aphanidermatum based on morphological characteristics and DNA sequence data. The same symptoms developed after seedlings were inoculated with the isolated fungus, and the same fungus was reisolated from the seedlings. This is the first report of dam** off in wax gourd seedlings caused by P. aphanidermatum in seedling boxes in Japan.

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Acknowledgements

The authors thank Dr. Hieno Ayaka (River Basin Research Center, Gifu university) and Dr. Li Mingzhu (College of Life Sciences, Shaanxi Normal University) for kind assistance. The authors thank Enago (www.enago.jp) for English language review.

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Authors and Affiliations

  1. Plant Clinic, Agriculture Support Center, Aichi Prefectural Economic Federation of Agricultural Cooperative, 115 Aza Shinshinden, Sugiyama, Toyohashi, 441-3302, Aichi, Japan

    Noriyuki Miyake, Masashi Matsusaki, Hiroko Yasuda, Yoshimasa Kubota, Tsuneyoshi Kouno & Takamasa Otake

  2. River Basin Research Center, Gifu university, 1-1 Yanagido, Gifu, 501-1193, Japan

    Koji Kageyama

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  1. Noriyuki Miyake
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  2. Masashi Matsusaki
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  3. Hiroko Yasuda
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  4. Yoshimasa Kubota
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  5. Tsuneyoshi Kouno
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  6. Takamasa Otake
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  7. Koji Kageyama
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Correspondence to Noriyuki Miyake.

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Miyake, N., Matsusaki, M., Yasuda, H. et al. First report of dam**-off caused by Pythium aphanidermatum in seedlings of wax gourd. J Gen Plant Pathol 90, 59–62 (2024). https://doi.org/10.1007/s10327-023-01157-x

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  • DOI: https://doi.org/10.1007/s10327-023-01157-x

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