Plant rejuvenation: from phenotypes to mechanisms.

Zijie Zhang, Yuhan Sun, Yun Li

Journal: Plant cell reports 2021;39(10):1249-1262

PMID: 32780162

Abstract

Plant rejuvenation refers to the reversal of the adult phase in plants and the recovery of part or all of juvenile plant characteristics. The growth and reproductive vitality of plants can be increased after rejuvenation. In recent years, research has successfully reversed the development clock in plants by certain methods; created rejuvenated plants and revealed the basic rules of plant morphology, physiology and reproduction. Here, we reconstitute the changes at the morphological and macromolecular levels, including those in RNA, phytohormones and DNA, during plant rejuvenation. In addition, the characteristics of plant phase changes that can be used as references for plant rejuvenation are also summarized. We further propose possible mechanisms for plant rejuvenation, methods for reversing plant development and problems that should be avoided. Overall, this study highlights the physiological and molecular events involved in plant rejuvenation.

Address: Beijing Advanced Innovation Center for Tree Breeding By Molecular Design, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, National Engineering Laboratory For Tree Breeding, College of Biological Science and Technology, Beijing Forestry University, Beijing, 100083, People's Republic of China.; Beijing Advanced Innovation Center for Tree Breeding By Molecular Design, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, National Engineering Laboratory For Tree Breeding, College of Biological Science and Technology, Beijing Forestry University, Beijing, 100083, People's Republic of China. [email protected].

DOI: 10.1007/s00299-020-02577-1

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http://dx.doi.org/10.1007/s00299-020-02577-1

MeSH Terms: DNA Methylation, MicroRNAs, Phenotype, Plant Growth Regulators, Plant Physiological Phenomena, Rejuvenation