Translation initiation factors: a weak link in plant RNA virus infection

被引:334
作者
Robaglia, C [1 ]
Caranta, C
机构
[1] Univ Aix Marseille 2, CNRS, CEA, Lab Genet & Biophys Plantes,Fac Sci Luminy, F-13009 Marseille, France
[2] INRA, Unite Genet & Ameliorat Plantes, F-84143 Montfavet, France
关键词
D O I
10.1016/j.tplants.2005.11.004
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Recessive resistance genes against plant viruses have been recognized for a long time but their molecular nature has only recently been linked to components of the eukaryotic translation initiation complex. Translation initiation factors, and particularly the elF4E and elF4G protein families, were found to be essential determinants in the outcome of RNA virus infections. Viruses affected by these genes belong mainly to polyviruses; natural viral resistance mechanisms as well as mutagenesis analysis in Arabidopsis all converged to identify the same set of translation initiation factors. Their role in plant resistance against RNA viruses remains to be elucidated. Although the interaction with the protein synthesis machinery is probably a key element for successful RNA virus infection, other possible mechanisms will also be discussed.
引用
收藏
页码:40 / 45
页数:6
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