Recent Advances in Molecular Mechanisms of Plant Graft Healing Process

doi:10.11983/CBB20061

Abstract

Abstract: Grafting can significantly improve target traits such as yield, quality, and resistance of vegetable varieties, and is widely applied in agricultural practice. Prompting graft healing between scion and stock at the graft interface is necessary to improve graft efficiency. Currently the improvement on the technology is hampered by our lack of understanding of regulatory mechanisms of graft healing. The graft healing process involves complicated and cross-linked physiological events, including wounding stress response, callus formation, cell communication between scion and stock, and the regeneration and reunion of scion and stock. Recent research has provided a good foundation for our understanding the molecular mechanisms of graft healing. In this review, we summarize the central roles of phytohormones in each of the physiological events, and the phytohormone-dependent and -independent gene regulatory networks in graft healing, to provide a reference for further studying graft healing-related molecular mechanisms.

Key words: grafting, graft healing, endogenous plant hormone, gene expression regulation

Lulu Xie, Qingqing Cui, Chunjuan Dong, Qingmao Shang. Recent Advances in Molecular Mechanisms of Plant Graft Healing Process[J]. Chinese Bulletin of Botany, 2020, 55(5): 634-643.

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URL: https://www.chinbullbotany.com/EN/10.11983/CBB20061

https://www.chinbullbotany.com/EN/Y2020/V55/I5/634

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References 64

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