Mycobiology

  • 제50권6호
  • /
  • Pages.457-466
  • /
  • 2022
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  • 1229-8093(pISSN)
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  • 2092-9323(eISSN)
한국균학회 (The Korean Society of Mycology)
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Genetic Diversity of Epicoccum nigrum and its Effects on Fusarium graminearum

  • Taiying Li (Department of Applied Biology, Dong-A University) ;
  • Jihyeon Im (Department of Applied Biology, Dong-A University) ;
  • Jungkwan Lee (Department of Applied Biology, Dong-A University)
  • 투고 : 2022.09.06
  • 심사 : 2022.11.12
  • 발행 : 2022.12.31
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초록

Epicoccum nigrum is a saprophytic or endophytic fungus that is found worldwide. Because of the antagonist effects of E. nigrum on many plant pathogens, current studies on E. nigrum have focused on the development of biological control agents and the utilization of its various metabolites. In this study, E. nigrum was collected from a wheat field, and its genetic diversity was analyzed. Phylogenetic analyses identified 63 isolates of E. nigrum divided into seven groups, indicating a wide genetic diversity. Isolates antagonized the wheat pathogen Fusarium graminearum, and reduced disease symptoms caused by F. graminearum in wheat coleoptiles. Moreover, pretreatment of wheat coleoptiles with E. nigrum induced the upregulation of pathogen-related (PR) genes, PR1, PR2, PR3, PR5, PR9, and PR10 in wheat coleoptiles responding to F. graminearum invasion. Overall, this study indicates that E. nigrum isolates can be used as biological pathogen inhibitors applied in wheat fields.

키워드

과제정보

This work was supported by Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education [2020R1A2C2013617, 2020R1A6A1A03047729] and the Green Fusion Technology Program funded by the Ministry of Environment, Republic of Korea.

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