First report of root rot of goji (Lycium barbarum), caused by Fusarium sambucinum
2024
Pingping SUN | Yuchen GUO | Lei ZHANG | Rong YANG | Zhengnan LI
In July 2022, root rot was observed in several goji (Lycium barbarum) orchards located in Qinghai Province, China. Approximately 40% of the goji plants were affected in the orchards. Morphology of fungi isolated from affected plant, phylogenetic analyses, using internal transcribed spacer (ITS), translation elongation factor 1-alpha (TEF), and trichothecene (Tri5) sequences, as well as pathogenicity assays, were conducted to characterize and identify the causing agent of goji root rot. Isolate GQGF1-3 caused typical symptoms of L. barbarum root rot. Fungal colony characteristics and conidium morphology, combined with ITS, TEF, and Tri5 sequences showed that isolate GQGF1-3 was Fusarium sambucinum. This is the first report of F. sambucinum causing root rot of goji.
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