Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 24, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/ijms24119245
Keywords
leaf senescence; multiple regulation; transcription factor; Arabidopsis; crop
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This review summarizes the regulatory roles of NAC and WRKY families in leaf senescence in Arabidopsis and various crops, and discusses the functions of other families such as ERF, bHLH, bZIP, and MYB. Understanding the molecular mechanisms of leaf senescence regulated by transcription factors has the potential to enhance crop yield and quality through molecular breeding.
Leaf senescence is a complex biological process regulated at multiple levels, including chromatin remodeling, transcription, post-transcription, translation, and post-translational modifications. Transcription factors (TFs) are crucial regulators of leaf senescence, with NAC and WRKY families being the most studied. This review summarizes the progress made in understanding the regulatory roles of these families in leaf senescence in Arabidopsis and various crops such as wheat, maize, sorghum, and rice. Additionally, we review the regulatory functions of other families, such as ERF, bHLH, bZIP, and MYB. Unraveling the mechanisms of leaf senescence regulated by TFs has the potential to improve crop yield and quality through molecular breeding. While significant progress has been made in leaf senescence research in recent years, our understanding of the molecular regulatory mechanisms underlying this process is still incomplete. This review also discusses the challenges and opportunities in leaf senescence research, with suggestions for possible strategies to address them.
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