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Identification of pathogen of Aquilaria sinensis dieback disease
ZHANG Zheng1, 2, YANG Yun2, WEI Jian-he1, 2*, CHEN Xu-yu2, MENG Hui2, WANG Meng-xi1, 3
(1.Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China;
2.Hainan Branch of Institute of Medicinal Plant Development, Chinese Academy of Medicinal Sciences & Peking Union Medical College,Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Wanning 571533, China;
3.Drug Research Institute of Life Science and Environment Science, Harbin University of Commerce, Harbin 150076, China)
[Abstract] Objective: The research focused on identification the pathogen of Aquilaria sinensis dieback disease and confirmation the function of inducing agarwood formation by fungi. Method: The morphological observation, rDNA ITS sequence analyses, Koch′s postulates and pathogenicity test were used to identify the isolates. Result: The isolates of the causal agent was Lasiodiplodia theobromae, which induced the plant to produce highly valuable agarwood. Conclusion: The first report of dieback disease of Aquilaria sinensis caused by L. theobromae, and our research results laid a theoretical foundation for agarwood production by using fungus.
[Key words] Aquilaria sinensis dieback disease; Lasiodiplodia theobromae; agarwood
doi:10.4268/cjcmm20131113
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