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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.12
- 수록면
- 655 - 663 (9page)
- DOI
- 10.1007/s11816-022-00806-5
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초록· 키워드
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Flavonoids have a variety of biological functions including UV protectant, antioxidant, allelopathy and auxin transport inhibitor in plants. In addition, favonoids are implicated in defense response against pathogens. In this study, we found that kaempferol, a kind of favonol, induces bacterial pathogen resistance. In addition, we identifed the signaling pathway to explain how kaempferol can induce pathogen resistance in Arabidopsis. We showed that kaempferol upregulates the tran scription of two pathogenesis-related (PR) genes. Interestingly, the monomerization and nuclear translocation of NPR1, a key regulator of PR gene expression, was induced by kaempferol through the accumulation of salicylic acid (SA). Further more, we found that the kaempferol-induced monomerization of NPR1 is mediated by the activation of MPK3 and MPK6.
Taken together, this study suggests that kaempferol induces pathogen resistance by both SA and MPK-dependent signaling pathways in Arabidopsis.
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