The capsid protein p38 of turnip crinkle virus is associated with the suppression of cucumber mosaic virus in Arabidopsis thaliana co-infected with cucumber mosaic virus and turnip crinkle virus

被引：7

作者：

Chen, Ying-Juan ^{[1
,2
]}

Zhang, Jing ^{[1
]}

Liu, Jian ^{[1
]}

Deng, Xing-Guang ^{[1
]}

Zhang, Ping ^{[1
]}

Zhu, Tong ^{[1
]}

Chen, Li-Juan ^{[1
]}

Bao, Wei-Kai ^{[2
]}

Xi, De-Hui ^{[1
]}

Lin, Hong-Hui ^{[1
]}

机构：

[1] Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ,Key Lab Bioresource & Ecoenvironm, Chengdu 610064, Peoples R China

[2] Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu 610041, Peoples R China

来源：

VIROLOGY | 2014年 / 462卷

基金：

中国国家自然科学基金;

关键词：

Cucumber mosaic virus; Turnip crinkle virus; Arabidopsis thaliana; Antagonism; Capsid protein; CROSS-PROTECTION; SYSTEMIC MOVEMENT; PATHOGENICITY DETERMINANTS; NICOTIANA-BENTHAMIANA; ANTIVIRAL DEFENSE; PLANT DEVELOPMENT; INTERFERING RNAS; VIRAL SUPPRESSOR; X SYNTHESIS; HC-PRO;

D O I：

10.1016/j.virol.2014.05.031

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Infection of plants by multiple viruses is common in nature. Cucumber mosaic virus (CMV) and Turnip crinkle virus (TCV) belong to different families, but Arabidopsis thaliana and Nicotiana benthamiana are commonly shared hosts for both viruses. In this study, we found that TCV provides effective resistance to infection by CMV in Arabidopsis plants co-infected by both viruses, and this antagonistic effect is much weaker when the two viruses are inoculated into different leaves of the same plant. However, similar antagonism is not observed in N. benthamiana plants. We further demonstrate that disrupting the RNA silencing-mediated defense of the Arabidopsis host does not affect this antagonism, but capsid protein (CP or p38)-defective mutant TCV loses the ability to repress CMV, suggesting that TCV CP plays an important role in the antagonistic effect of TCV toward CMV in Arabidopsis plants co-infected with both viruses. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：71 / 80

页数：10

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