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Foatf1, a bZIP transcription factor of Fusarium oxysporum f. sp cubense, is involved in pathogenesis by regulating the oxidative stress responses of Cavendish banana (Musa spp.)

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文献类型：外文期刊

作者： Qi, Xingzhu ² ; Guo, Lijia ¹ ; Yang, Laying ¹ ; Huang, Junsheng ¹ ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Haikou 571101, Peoples R China

2.Hainan Univ, Coll Agr, Haikou 570228, Peoples R China

3.Minist Agr, Key Lab Monitoring & Control Trop Agr & Forest In, Haikou 571101, Peoples R China

关键词： Transcription factor Foatf1;Fusarium oxysporum f. sp. cubense;Catalase;Reactive oxygen species

期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （影响因子：2.747；五年影响因子：2.388 ）

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收录情况： SCI

摘要： We characterized Foatf1, a basic leucine zipper (bZIP) transcription factor in Fusarium oxysporum f. sp. cubense race 4 (Foc4), and created a deletion mutant of Foatf1. Foatf1 deletion mutant could cause oxidative burst of banana seedlings in early stages of infection. This mutant also showed higher sensitivity to hydrogen peroxide (H2O2) than the wild-type strain. Foatf1 significantly reduced the activity of extracellular enzymes and the transcription level of catalase. Furthermore, Foatf1 exhibited remarkably reduced virulence on Cavendish banana (Musa spp.). These findings indicated that Foatf1 could be necessary to induce the full virulence of Foc4 by regulating the transcription of catalase to impair plant defenses mediated by reactive oxygen species

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