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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

作者: Cheng, Chunzhen 1 ; Zhong, Yun 2 ; Wang, Bin 1 ; Zhang, Yongyan 1 ; Wu, Huan 1 ; Jiang, Nonghui 2 ; Wu, Bo 2 ; Lv, Yuanda 3 ; Jiang, Bo 2 ;

作者机构: 1.Shanxi Agr Univ, Coll Hort, Jinzhong 030801, Peoples R China

2.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou 510640, Peoples R China

3.Minist Agr & Rural Affairs, Key Lab South Subtrop Fruit Biol & Genet Resource, Guangzhou 510640, Peoples R China

4.Guangdong Prov Key Lab Trop & Subtrop Fruit Tree, Guangzhou 510640, Peoples R China

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 )

ISSN:

年卷期: 2022 年 23 卷 13 期

页码:

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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