The OsERF115/AP2EREBP110 Transcription Factor Is Involved in the Multiple Stress Tolerance to Heat and Drought in Rice Plants.
The AP2/EREBP family transcription factors play important roles in a wide range of stress tolerance and hormone signaling. In this study, a heat-inducible rice ERF gene was isolated and functionally characterized. The OsERF115/AP2EREBP110 was categorized to Group-IIIc of the rice AP2/EREBP family and strongly induced by heat and drought treatment. The OsERF115/AP2EREBP110 protein targeted to nuclei and suppressed the ABA-induced transcriptional activation of Rab16A promoter in rice protoplasts. Overexpression of OsERF115/AP2EREBP110 enhanced thermotolerance of seeds and vegetative growth stage plants. The OsERF115/AP2EREBP110 overexpressing (OE) plants exhibited higher proline level and increased expression of a proline biosynthesis P5CS1 gene. Phenotyping of water use dynamics of the individual plant indicates that the OsERF115/AP2EREBP110-OE plant exhibited better water saving traits under heat and drought combined stress. Our combined results suggest the potential use of OsERF115/AP2EREBP110 as a candidate gene for genetic engineering approaches to develop heat and drought stress-tolerant crops.
['Park|Seong-Im|SI|', 'Kwon|Hyeok Jin|HJ|', 'Cho|Mi Hyeon|MH|', 'Song|Ji Sun|JS|', 'Kim|Beom-Gi|BG|', 'Baek|JeongHo|J|', 'Kim|Song Lim|SL|', 'Ji|HyeonSo|H|', 'Kwon|Taek-Ryoun|TR|', 'Kim|Kyung-Hwan|KH|', 'Yoon|In Sun|IS|']
D000040:Abscisic Acid D055864:Droughts D006360:Heat-Shock Proteins D012275:Oryza D064587:Osmoregulation D010940:Plant Proteins D030821:Plants, Genetically Modified D000071436:Thermotolerance D014157:Transcription Factors D014867:Water
OsERF115/AP2EREBP110 rice heat and drought tolerance water use efficiency