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Bioprocess 2023
木本植物体细胞胚胎发生的影响因素研究
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Abstract:
体细胞胚胎发生(SE)是体细胞产生体细胞胚胎的一种自然现象。它被认为是植物繁殖最有效的形态发生途径。体细胞胚胎发生的关键特征之一是利用细胞全能性，即诱导去分化以促进细胞增殖，然后使用植物生长调节剂诱导分化以产生完整新植株。近年来，大量研究报道了木本植物体细胞胚胎发生过程的多项进展。本文综述了植物生长调节剂、温度、溶氧水平、化学环境、外植体类型和植物材料基因型等主要因素对SE的影响，旨在寻找影响木本植物体胚发生的关键问题以及进一步研究的方向，以期确定改善体胚发生的策略，从而促进体胚发生，为有效保存濒危种质资源以及快速繁殖高质量的遗传改良材料提供选择。
Somatic Embryogenesis (SE) is a natural phenomenon through which somatic embryos are produced from somatic cells although. It is considered the most efficient morphogenic pathway for plant multiplication. One of the key features of somatic embryo-genesis is the use of cellular totipotency, where dedifferentiation is induced to foster cell prolifera-tion, followed by the induction of differentiation using plant growth regulators to produce complete new plants. In recent years, many advances in somatic embryogenesis in woody plants have been reported. In this paper, the effects of plant growth regulators, temperature, dissolved oxygen level, chemical environment, explants type and plant material genotype on SE were reviewed. The pur-pose of this paper was to find out the key issues affecting somatic embryogenesis in woody plants and the direction of further research, so as to determine the strategies to improve somatic embry-ogenesis and promote somatic embryogenesis. To provide options for effective conservation of en-dangered germplasm resources and rapid propagation of high-quality genetic improved materials.
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