Chinese Bulletin of Botany ›› 2020, Vol. 55 ›› Issue (4): 481-496.DOI: 10.11983/CBB19243

• SPECIAL TOPICS • Previous Articles     Next Articles

Research Advances in AP2/ERF Transcription Factors in Regulating Plant Responses to Abiotic Stress

Lin Hong(),Lei Yang,Haijian Yang,Wu Wang   

  1. Fruit Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China
  • Received:2019-12-17 Accepted:2020-02-26 Online:2020-07-01 Published:2020-05-21
  • Contact: Lin Hong

Abstract: Low temperature, drought, high salt, hypoxia and other adverse environmental changes affect plant growth and development. Plants adapt to these adverse conditions through the development of complex regulatory mechanisms during long-term evolution. APETALA2/ethylene responsive factor (AP2/ERF) is a plant-specific transcription factor that plays a key regulatory role in various stress responses. In recent years, more and more studies have shown that plant hormone-mediated signaling is closely related to stress responses, and AP2/ERF transcription factor and hormone signal transduction form a cross-regulatory network. Many AP2/ERF transcription factors respond to plant hormones abscisic acid (ABA) and ethylene (ET), activating the expression of stress response genes that are dependent on and independent of ABA and ET. In addition, AP2/ERF transcription factors are also involved in gibberellin (GA), cytokinin (CTK) and brassinsteroid (BR) mediated growth and developmental processes and stress responses. This paper briefly reviews the research progress of AP2/ERF transcription factors in term of structure, transcriptional regulation, posttranslational modifications, binding sites and interacting proteins as well as its transduction pathways involved in hormone dependent- or independent- regulation of the abiotic stress responses, which will provide the basis for further understanding the roles of different AP2/ERF transcription factors in the regulation of hormone and stress response network in plants.

Key words: AP2/ERF transcription factor, hormone, abiotic stress, regulation