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

• Published in: Journal of general plant pathology : JGPP Vol. 90; no. 1; pp. 59 - 62
• Main Authors: Miyake, Noriyuki, Matsusaki, Masashi, Yasuda, Hiroko, Kubota, Yoshimasa, Kouno, Tsuneyoshi, Otake, Takamasa, Kageyama, Koji
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 2024; Springer Nature B.V
• Subjects: Agriculture; Biomedical and Life Sciences; Boxes; Damping; Damping-off; Disease Note; Fungi; Hypocotyls; Life Sciences; Microbiology; Nucleotide sequence; Physical characteristics; Plant Pathology; Pythium aphanidermatum; Seedlings; Waxes; Fungal pathogen; New Disease; Wax Gourd; Damping-off; (Thunb.) Cogn
• ISSN: 1345-2630; 1610-739X
• DOI: 10.1007/s10327-023-01157-x

In February 2023 in Japan, seedlings of wax gourd [
Benincasa hispida
(Thunb.) Cogn.] in seedling boxes developed water-soaked rot on hypocotyls typical of damping 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 damping off in wax gourd seedlings caused by
P
.
aphanidermatum
in seedling boxes in Japan.