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Reference Detail
| Reference | ||
|---|---|---|
| Author | Mao C., Ding J., Zhang B., Xi D., Ming F. | |
| Title | OsNAC2 positively affects salt-induced cell death and binds to the OsAP37 and OsCOX11 promoters. | |
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Abstract: Plant development and adaptation to environmental stresses are intimately associated with programmed cell death (PCD). Although some of the mechanisms regulating PCD [e.g., accumulation of reactive oxygen species (ROS)] are common among responses to different abiotic stresses, the pathways mediating salt-induced PCD remain largely uncharacterized. Here we report that overexpression of OsNAC2, which encodes a plant-specific transcription factor, promotes salt-induced cell death accompanied by the loss of plasma membrane integrity, nuclear DNA fragmentation, and changes to caspase-like activity. In OsNAC2-knockdown lines, cell death was markedly decreased in response to severe salt stress. Additionally, OsNAC2 expression was enhanced in rice seedlings exposed to a high NaCl concentration. Moreover, the results of quantitative real-time PCR, chromatin immunoprecipitation, dual-luciferase, and yeast one-hybrid assays indicated that OsNAC2 targeted genes that encoded an ROS scavenger (OsCOX11) and a caspase-like protease (OsAP37). Furthermore, K+ -efflux channels (OsGORK and OsSKOR) were clearly activated by OsNAC2. Overall, our results suggested that OsNAC2 accelerates NaCl-induced PCD and provide new insights into the mechanisms that affect ROS accumulation, plant caspase-like activity, and K+ efflux. |
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| Journal | Plant J. | |
| Country | China | |
| Volume | 94(3) | |
| Pages | 454-468 | |
| Year | 2018 | |
| PubMed ID | 29436050 | |
| PubMed Central ID | - | |
| DOI | 10.1111/tpj.13867 | |
| URL | - | |
| Relation | ||
| Gene | ACO3 AP37 CCD1 CDPK4 COI1B COX11 ERF127 GORK LEA3-1 ONAC2 RAC6 RS2 SAP11 SKOR TIL1 WRKY43 WRKY46 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
