Home > Browse Issues > Vol.40 No.9
Regulation of Phytohormone on Regeneration In Vitro and Its Role in Pumpkin
Wang Bin1, Chen Mindong1, Lin Liang2, Bai Changhui1, Zhu Haisheng1*, Wen Qingfang1*
1Crops Research Institute, Fujian Academy of Agricultural Sciences; Vegetable Research Center, Fujian Academy of Agricultural Sciences; Fujian Engineering Research Center for Vegetables, Fuzhou 350013, China; 2Lianjiang Agricultural Economy and Technology Center, Lianjiang 350500, China
Abstract: Regeneration in vitro involves in phytohormone perception， cell differentiation， dedifferentiation to acquire organogenic competence， and organization of cell division to form specific organ primordia and meristems. Hormone regulation is an important factor affecting plant regeneration in vitro. Some key promoter elements and transcription factors play an important role in the process of hormone-response signals detection and transduction. The control object of hormone is usually the crucial genes that change the morphology and metabolism of cells， which are mainly transcription factors and epigenetic factors. They jointly complete the rearrangement of gene expression in genome-wide， and realize cell-fate transition. This review focused on the hormone induction， response patterns， signal transduction of plant regeneration in vitro， hormone molecular regulation in plant organogenesis and somatic embryogenesis， and summarized the role of hormone in pumpkin regeneration in vitro in recent years， aiming to provide a new idea for improving the regeneration rate of Cucurbita crops in vitro.
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