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Fusarium root rot of prairie gentian caused by a species belonging to the <Emphasis Type="Italic">Fusarium solani</Emphasis> species complex
Authors:Keisuke Tomioka  Yuuri Hirooka  Akane Takezaki  Takayuki Aoki  Toyozo Sato
Institution:(1) National Institute of Agrobiological Sciences, Tsukuba 305-8602, Japan;(2) United States Department of Agriculture, Agricultural Research Service, Beltsville, MD 20705, USA;(3) National Agricultural Research Center, Tsukuba 305-8666, Japan
Abstract:Rotting of roots and stem bases and wilting of entire plants were found on a gentianaceous flowering plant, prairie gentian (Eustoma grandiflorum), grown in Kagawa Prefecture in the southwest region of Japan in April 2001. A mitosporic fungus, isolated repeatedly from the diseased plants, was identified as a species belonging to the clade 3 of Fusarium solani species complex based on the morphology and the sequence of the translation elongation factor gene. It was demonstrated to cause the disease by inoculating potted plants and reisolating the fungus from the diseased plants. We propose the name “Fusarium root rot of prairie gentian” for this disease.
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