Palmitoylation Is Indispensable for Remorin to Restrict Tobacco Mosaic Virus Cell-to-Cell Movement in Nicotiana benthamiana
文献类型： 外文期刊
作者： Ma, Tingting 1 ; Fu, Shuai 1 ; Wang, Kun 1 ; Wang, Yaqin 1 ; Wu, Jianxiang 1 ; Zhou, Xueping 1 ;
作者机构： 1.Zhejiang Univ, Inst Biotechnol, State Key Lab Rice Biol, Hangzhou 310058, Peoples R China
2.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
关键词： remorin; palmitoylation; movement; tobacco mosaic virus; plasma membrane; plasmodesmata
期刊名称：VIRUSES-BASEL （ 影响因子：5.818； 五年影响因子：5.811 ）
ISSN：
年卷期： 2022 年 14 卷 6 期
页码：
收录情况： SCI
摘要： Remorin (REM) is a plant-specific plasma membrane-associated protein regulating plasmodesmata plasticity and restricting viral cell-to-cell movement. Here, we show that palmitoylation is broadly present in group 1 remorin proteins in Nicotiana benthamiana and is crucial for plasma membrane localization and accumulation. By screening the four members of N. benthamiana group 1 remorin proteins, we found that only NbREM1.5 could significantly hamper tobacco mosaic virus (TMV) cell-to-cell movement. We further showed that NbREM1.5 interacts with the movement protein of TMV in vivo and interferes with its function of expanding the plasmodesmata size exclusion limit. We also demonstrated that palmitoylation is indispensable for NbREM1.5 to hamper plasmodesmata permeability and inhibit TMV cell-to-cell movement.
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