Morpho-cultural, Pathogenicity and Molecular Characterization of Phyllosticta capitalensis Inciting Cavendish Banana Freckle Disease in Hainan
刊名 Plant Diseases and Pests
作者 Yanxiang QI, Hong ZHAO, Zhaojing ZHANG, Yanfei OUYANG, Xin ZHANG
作者单位 Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences;State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University; College of Plant Science and Technology of Huazhong Agricultural University
DOI 10.19579/j.cnki.plant-d.p.2024.03.002
年份 2024
刊期 3
页码 5-7
关键词 Phyllosticta capitalensis; Cavendish banana; Freckle disease
摘要 [Objectives] The study was to identify the casual agent of freckle disease on Cavendish banana in Hainan Province, China. [Methods] Fungal isolates were isolated from affected leaf tissues and identified by the morphological features, molecular identification and pathogenicity test. [Results] The fungus isolated from affected leaf tissues was identified as Phyllosticta capitalensis based on the morphological properties of the colony and spore, coupled with sequence analyses of the internal transcribed spacer (ITS) region and the large subunit (LSU) rDNA gene. Koch’s postulates were fulfilled by successfully re-isolating the pathogen from the artificial inoculated leaves. [Conclusions] P. capitalensis is a new pathogen responsible for Cavendish banana freckle disease in Hainan.