The Upregulated Expression of the Citrus RIN4 Gene in HLB Diseased Citrus Aids Candidatus Liberibacter Asiaticus Infection

文献类型： 外文期刊

第一作者： Cheng, Chunzhen

作者： Cheng, Chunzhen;Wang, Bin;Zhang, Yongyan;Wu, Huan;Cheng, Chunzhen;Zhong, Yun;Zhang, Yongyan;Jiang, Nonghui;Wu, Bo;Jiang, Bo;Cheng, Chunzhen;Zhong, Yun;Lv, Yuanda;Lv, Yuanda

作者机构：

关键词： citrus; RIN4; Huanglongbing; disease response; genetic transformation

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：6.208； 五年影响因子：6.628 ）

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年卷期： 2022 年 23 卷 13 期

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收录情况： SCI

摘要： The citrus industry has been threatened by Huanglongbing (HLB) for over a century. Here, an HLB-induced Arabidopsis RPM1-interacting protein 4 (RIN4) homologous gene was cloned from Citrus clementina, and its characteristics and function were analyzed to determine its role during citrus-Candidatus Liberibacter asiaticus (CLas) interactions. Quantitative real-time PCR showed that RIN4 was expressed in roots, stems, leaves and flowers, with the greatest expression level in leaves. Its expression was suppressed by gibberellic acid, indole-3-acetic acid, salicylic acid and jasmonic acid treatments, but was induced by abscisic acid and salt treatments, as well as wounding. The transient expression of a RIN4-GFP showed that RIN4 was localized in the cell membrane. RIN4-overexpressing transgenic C. maxima cv. 'Shatianyou' plants were obtained, and some transgenic plants showed greater sensitivity to CLas infection and earlier HLB symptoms appearance than non-transgenic controls. Results obtained in this study indicated that the upregulated expression of RIN4 in HLB diseased citrus may aid CLas infection.

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