期刊
EUROPEAN JOURNAL OF CELL BIOLOGY
卷 89, 期 2-3, 页码 133-137出版社
ELSEVIER GMBH
DOI: 10.1016/j.ejcb.2009.10.014
关键词
Leaf senescence; Transcription factors; DNA methylation; MAPK signaling; Protein phosphorylation; Protein degradation; MEKK1; WRKY53; GATA4; UPL5
类别
资金
- Deutsche Forschungsgemeinschaft
Many different agriculturally important traits, e.g. number and quality of seeds, timing of seed set, fruit ripening, are affected by senescence. Despite the importance of the senescence processes in plants, our knowledge on regulatory mechanisms of senescence is still poor. A central step is a massive reprogramming of the transcriptome, implying an important role of transcription factors. In Arabidopsis 12-16% of all genes are up- or down-regulated. WRKY transcription factors play a central role in controlling leaf senescence in Arabidopsis. One important member of this family, WRKY53, is tightly regulated by different unexpected mechanisms and is a convergence node between senescence and biotic and abiotic stress responses. (C) 2009 Elsevier GmbH. All rights reserved.
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