論文

国際誌
2020年11月20日

Trade-Off Relation between Fungicide Sensitivity and Melanin Biosynthesis in Plant Pathogenic Fungi.

iScience
  • Ken Harata
  • ,
  • Hiroyuki Daimon
  • ,
  • Tetsuro Okuno

23
11
開始ページ
101660
終了ページ
101660
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.isci.2020.101660

Circumventing the emergence of fungicide-resistant strains is a crucial issue for robust disease management in agriculture. The agricultural fungicide ferimzone has been used for the control of rice diseases including rice blast. The emergence of ferimzone-resistant strains in rice fields has not been reported. Here, we identified the copper transport CoICT1 gene as the ferimzone sensitivity gene in Colletotrichum orbiculare and the rice blast fungus Magnaporthe oryzae. Genetic and cytological analyses showed that functional defects in the copper transport pathways, consisting of CoIct1 and P-type ATPase CoCcc2, led to the low sensitivity to ferimzone and the pathogenicity defect due to attenuated melanization in the appressorium. Importantly, the presence of CuSO4 induced high sensitivity to ferimzone even in the coict1 mutant. Our study shows that there is a trade-off relation between the sensitivity to ferimzone and fungal pathogenicity.

リンク情報
DOI
https://doi.org/10.1016/j.isci.2020.101660
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/33117970
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7582099

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