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<p>In 2023, leaves and flower bracts with brown spots and black specks were observed on <i>Curcuma alismatifolia</i> (Siam tulip) in Kagoshima Prefecture, Japan. A fungus isolated from diseased leaves was identified as <i>Colletotrichum curcumae</i> based on morphological characteristics and molecular analysis of ITS, <i>ACT</i>, <i>CHS-1</i>, <i>GAPDH</i>, and <i>TUB2</i> sequences. Pathogenicity tests confirmed that <i>C. curcumae</i> was the etiological agent of the disease. This report is the first on Siam tulip anthracnose (tanso-byo) caused by <i>C. curcumae</i> in Japan. </p>

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First report of anthracnose of Curcuma alismatifolia caused by Colletotrichum curcumae in Japan

  • 期刊论文

  • 发表日期：

    2025年7月13日

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  • Taizou Tokunaga

摘要

In 2023, leaves and flower bracts with brown spots and black specks were observed on Curcuma alismatifolia (Siam tulip) in Kagoshima Prefecture, Japan. A fungus isolated from diseased leaves was identified as Colletotrichum curcumae based on morphological characteristics and molecular analysis of ITS, ACT, CHS-1, GAPDH, and TUB2 sequences. Pathogenicity tests confirmed that C. curcumae was the etiological agent of the disease. This report is the first on Siam tulip anthracnose (tanso-byo) caused by C. curcumae in Japan.