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Gb_ANR-47 Enhances the Resistance of Gossypium barbadense to Fusarium oxysporum f. sp. vasinfectum (FOV) by Regulating the Content of Proanthocyanidins

文献类型： 外文期刊

作者： Su, Xuening 1 ; Zhao, Jieyin 1 ; Gao, Wenju 1 ; Zu, Qianli 1 ; Chen, Quanjia 1 ; Li, Chunping 2 ; Qu, Yanying 1 ;

作者机构： 1.Xinjiang Agr Univ, Minist Educ, Engn Res Ctr Cotton, Coll Agr, 311 Nongda East Rd, Urumqi 830052, Peoples R China

2.Xinjiang Acad Agr Sci, Inst Cash Crops, Urumqi 830052, Peoples R China

关键词： G. barbadense; proanthocyanidins; FOV; Gb_ANR-47

期刊名称：PLANTS-BASEL （ 影响因子：4.658； 五年影响因子：4.827 ）

ISSN：

年卷期： 2022 年 11 卷 15 期

页码：

收录情况： SCI

摘要： Anthocyanidin reductase (ANR) is an important regulator of flavonoid metabolism, and proanthocyanidins, the secondary metabolites of flavonoids, play an important role in the response of plants to pathogenic stress. Therefore, in this study, the expression analysis of the ANR gene family of Gossypium barbadense after inoculation with Fusarium oxysporum f. sp. vasinfectum (FOV) was performed at different time points. It was found that Gb_ANR-47 showed significant differences in the disease-resistant cultivar 06-146 and the susceptible cultivar Xinhai 14, as well as in the highest root expression. It was found that the expression of Gb_ANR-47 in the resistant cultivar was significantly higher than that in the susceptible cultivar by MeJA and SA, and different amounts of methyl jasmonate (MeJA) and salicylic acid (SA) response elements were found in the promoter region of Gb_ANR-47. After silencing GbANR-47 in 06-146 material by VIGS technology, its resistance to FOV decreased significantly. The disease severity index (DSI) was significantly increased, and the anthocyanin content was significantly decreased in silenced plants, compared to controls. Our findings suggest that GbANR-47 is a positive regulator of FOV resistance in Gossypium barbadense. The research results provide an important theoretical basis for in-depth analysis of the molecular mechanism of GbANR-47 and improving the anti-FOV of Gossypium barbadense.

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