Overexpressing a NAM, ATAF, and CUC (NAC) transcription factor enhances drought resistance and salt tolerance in rice
Top Cited Papers
- 29 August 2006
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 103 (35) , 12987-12992
- https://doi.org/10.1073/pnas.0604882103
Abstract
Drought and salinity are major abiotic stresses to crop production. Here, we show that overexpression of stress responsive gene SNAC1 ( STRESS-RESPONSIVE NAC 1 ) significantly enhances drought resistance in transgenic rice (22–34% higher seed setting than control) in the field under severe drought stress conditions at the reproductive stage while showing no phenotypic changes or yield penalty. The transgenic rice also shows significantly improved drought resistance and salt tolerance at the vegetative stage. Compared with WT, the transgenic rice are more sensitive to abscisic acid and lose water more slowly by closing more stomatal pores, yet display no significant difference in the rate of photosynthesis. SNAC1 is induced predominantly in guard cells by drought and encodes a NAM, ATAF, and CUC (NAC) transcription factor with transactivation activity. DNA chip analysis revealed that a large number of stress-related genes were up-regulated in the SNAC1 -overexpressing rice plants. Our data suggest that SNAC1 holds promising utility in improving drought and salinity tolerance in rice.Keywords
This publication has 50 references indexed in Scilit:
- Extracellular Calmodulin-Induced Stomatal Closure Is Mediated by Heterotrimeric G Protein and H2O2Plant Physiology, 2004
- A dehydration‐induced NAC protein, RD26, is involved in a novel ABA‐dependent stress‐signaling pathwayThe Plant Journal, 2004
- Arabidopsis RADICAL-INDUCED CELL DEATH1 Belongs to the WWE Protein–Protein Interaction Domain Protein Family and Modulates Abscisic Acid, Ethylene, and Methyl Jasmonate ResponsesPlant Cell, 2004
- Disruption of AtMRP4, a guard cell plasma membrane ABCC‐type ABC transporter, leads to deregulation of stomatal opening and increased drought susceptibilityThe Plant Journal, 2004
- SALT AND DROUGHT STRESS SIGNAL TRANSDUCTION IN PLANTSAnnual Review of Plant Biology, 2002
- Two TIP‐like genes encoding aquaporins are expressed in sunflower guard cellsThe Plant Journal, 1997
- The No Apical Meristem Gene of Petunia Is Required for Pattern Formation in Embryos and Flowers and Is Expressed at Meristem and Primordia BoundariesPublished by Elsevier ,1996
- Efficient transformation of rice (Oryza sativa L.) mediated by Agrobacterium and sequence analysis of the boundaries of the T‐DNAThe Plant Journal, 1994
- Calcium-Activated K + Channels and Calcium-Induced Calcium Release by Slow Vacuolar Ion Channels in Guard Cell Vacuoles Implicated in the Control of Stomatal ClosurePlant Cell, 1994
- A novel cis-acting element in an Arabidopsis gene is involved in responsiveness to drought, low-temperature, or high-salt stress.Plant Cell, 1994