Repress,on and De-repression of Gene Expression in the Plant Immune Response： The Complexity of Modulation by Ca2＋ and Calmodulin  

出　　处：《Molecular Plant》2015年第5期671-673,共3页分子植物（英文版）

摘　　要：Recent reports demonstrate a role of calmodulin （CaM）-binding DNA-binding proteins （transcription factors [TFs]） as repressors of the plant immune response through their interactions with promoters of a number of target genes. However, the role of Ca2＋ in gene repression has not been tested. Thus, to infer the function of such TFs as repressors of transcription prior to path- ogen attack raises questions about the role of Ca2＋ in this tran- scription repression and subsequently in de-repression upon pathogen attack. Here we discuss open questions and possible mechanisms.Recent reports demonstrate a role of calmodulin （CaM）-binding DNA-binding proteins （transcription factors [TFs]） as repressors of the plant immune response through their interactions with promoters of a number of target genes. However, the role of Ca2＋ in gene repression has not been tested. Thus, to infer the function of such TFs as repressors of transcription prior to path- ogen attack raises questions about the role of Ca2＋ in this tran- scription repression and subsequently in de-repression upon pathogen attack. Here we discuss open questions and possible mechanisms.

分 类 号：Q513[生物学—生物化学] S512.1[农业科学—作物学]