Fusarium spp. are Responsible for Shoot Canker of Kumquat in China |
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| Authors: | Li Zhu Guo‐Qing Chen Xiao‐Long Zhao Chong‐Ling Deng Kevin D Hyde Hong‐Ye Li |
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| Institution: | 1. Institute of Biotechnology Zhejiang University, , Hangzhou, 310058 China;2. Citrus Institute of Guangxi, , Guilin, 541004 China;3. Institute of Excellence in Fungal Research, School of Science Mae Fah Luang University, 333 M. 1. T. Tasud Muang District, , Chiang Rai, Thailand;4. Department of Botany and Microbiology, King Saud University, College of Science, , Riyadh, 1145 Saudi Arabia |
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| Abstract: | Shoot and branch canker and tree decline of kumquat (Fortunella margarita cv. Guban) were recorded in Yangshuo County, Guilin City, in the Guangxi Zhuang Autonomous Region of China during 2008–2011. Fusarium oxysporum and a new Fusarium species within the Gibberella fujikuroi complex (Fusarium sp. GLB1) were isolated repeatedly from the infected shoots and branches. Species identifications were verified by their high translation elongation factor 1‐alpha (TEF1) sequence similarity with those of the species epitypes. Koch's postulates were fulfilled on kumquat (cv. Guban) and mandarin establishing pathogenicity. To our knowledge, this is the first report of Fusarium shoot canker disease caused by F. oxysporum and Fusarium sp. on kumquat. |
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| Keywords: | identification of pathogens
Gibberella fujikuroi
Fusarium oxysporum
phylogenetics |
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