AtNAP, a NAC family transcription factor, has an important role in leaf senescence
Top Cited Papers
Open Access
- 21 April 2006
- journal article
- Published by Wiley in The Plant Journal
- Vol. 46 (4), 601-612
- https://doi.org/10.1111/j.1365-313x.2006.02723.x
Abstract
Leaf senescence is a unique developmental process that is characterized by massive programmed cell death and nutrient recycling. The underlying molecular regulatory mechanisms are not well understood. Here we report the functional analysis of AtNAP, a gene encoding a NAC family transcription factor. Expression of this gene is closely associated with the senescence process of Arabidopsis rosette leaves. Leaf senescence in two T-DNA insertion lines of this gene is significantly delayed. The T-DNA knockout plants are otherwise normal. The mutant phenotype can be restored to wild-type by the intact AtNAP, as well as by its homologs in rice and kidney bean plants that are also upregulated during leaf senescence. Furthermore, inducible overexpression of AtNAP causes precocious senescence. These data strongly suggest that AtNAP and its homologs play an important role in leaf senescence in Arabidopsis and possibly in other plant species.Keywords
This publication has 47 references indexed in Scilit:
- WRKY transcription factors: from DNA binding towards biological functionCurrent Opinion in Plant Biology, 2004
- Senescence‐Related Gene Expression Profiles of Rosette Leaves of Arabidopsis thaliana: Leaf Age Versus Plant AgePlant Biology, 2004
- Large‐scale identification of leaf senescence‐associated genesThe Plant Journal, 2003
- Genome-Wide Insertional Mutagenesis of Arabidopsis thalianaScience, 2003
- Multiple sequence alignment with the Clustal series of programsNucleic Acids Research, 2003
- The CUP-SHAPED COTYLEDON3 Gene Is Required for Boundary and Shoot Meristem Formation in ArabidopsisPlant Cell, 2003
- Gene Expression in Autumn LeavesPlant Physiology, 2003
- Targets of AtWRKY6 regulation during plant senescence and pathogen defenseGenes & Development, 2002
- Programmed senescence of plant organsCell Death & Differentiation, 1997
- A glucocorticoid‐mediated transcriptional induction system in transgenic plantsThe Plant Journal, 1997