The fundamental role of DELLA protein and regulatory mechanism during plant growth and development

  • Ali ANWAR Shandong Academy of Agricultural Sciences, Institute of Vegetables, Shandong Branch of National Vegetable Improvement Center, Jinan, Shandong (CN)
  • Qianyu ZHAO Shandong Academy of Agricultural Sciences, Institute of Vegetables, Shandong Branch of National Vegetable Improvement Center, Jinan, Shandong; Qufu Normal University, College of Life Science, Qufu, Jinan, Shandong (CN)
  • Huimin ZHANG Shandong Academy of Agricultural Sciences, Institute of Vegetables, Shandong Branch of National Vegetable Improvement Center, Jinan, Shandong; Shandong Normal University, College of Life Science, Jinan, Shandong (CN)
  • Shu ZHANG Shandong Academy of Agricultural Sciences, Institute of Vegetables, Shandong Branch of National Vegetable Improvement Center, Jinan, Shandong (CN)
  • Lilong HE Shandong Academy of Agricultural Sciences, Institute of Vegetables, Shandong Branch of National Vegetable Improvement Center, Jinan, Shandong (CN)
  • Fengde WANG Shandong Academy of Agricultural Sciences, Institute of Vegetables, Shandong Branch of National Vegetable Improvement Center, Jinan, Shandong (CN)
  • Jianwei GAO Shandong Academy of Agricultural Sciences, Institute of Vegetables, Shandong Branch of National Vegetable Improvement Center, Jinan, Shandong (CN)
Keywords: abiotic stress, DELLA proteins, GA, growth, plant hormone


Gibberellins (GAs) play a major role in a variety of key plant development processes, especially in promoting seed germination, stem and root growth, and fruit development. DELLA proteins are the core elements in GA signal transduction pathway, which exist in the plant nucleus and belong to the GRAS protein family. DELLA proteins negatively regulate the GA signaling pathway and biosynthesis, inhibiting plant growth. DELLA proteins can also interact with F-box, PIFS, ROS, SCLl3 and other proteins to enhance plant response to various adverse environmental influences such as drought, low and high temperature, heavy metal stresses. In addition, DELLA proteins can also partially regulate plant growth and development through interacting plant hormones such as ABA (abscisic acid), CK (cytokinin), ET (ethylene), BR (brassinosteroid) and JA (jasmine). This review summarized the basic characteristics of DELLA proteins, the transduction of hormone and environmental signals, as well as the regulation of plant growth and developments. DELLA proteins have broad application prospects in modern agricultural production in the future, but the molecular mechanism of DELLA proteins regulating plant growth and development are still unclear, and needs further study.


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How to Cite
ANWAR, A., ZHAO, Q., ZHANG, H., ZHANG, S., HE, L., WANG, F., & GAO, J. (2021). The fundamental role of DELLA protein and regulatory mechanism during plant growth and development. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 49(4), 12561.
Review Articles
DOI: 10.15835/nbha49412561