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首页> 外文期刊>Trends in Plant Science >Pluripotent versus totipotent plant stem cells: dependence versus autonomy?
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Pluripotent versus totipotent plant stem cells: dependence versus autonomy?

机译:多能与全能植物干细胞:依赖还是自主?

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Little is known of the mechanisms that induce the dedifferentiation of a single somatic cell into a totipotent embryogenic cell that can either be regenerated or develop into an embryo and subsequently an entire plant. In this Opinion article, we examine the cellular, physiological and molecular similarities and differences between different plant stem cell types. We propose to extend the plant stem cell concept to include single embryogenic cells as a totipotent stem cell based on their capacity to regenerate or develop into an embryo under certain conditions. Our survey suggests that differences in chromatin structure might ensure that meristemlocalized stem cells have supervised freedom and are pluripotent, and that embryogenic stem cells are unsupervised, autonomous and, hence, freely totipotent..
机译:诱导单个体细胞去分化为全能胚发生细胞的机制鲜为人知,所述全能胚发生细胞可以再生或发育成胚,然后发育成整个植物。在这篇观点文章中,我们研究了不同植物干细胞类型之间的细胞,生理和分子相似性和差异。我们建议将植物干细胞概念扩展到包括单个胚胎发生细胞作为全能干细胞,这取决于它们在某些条件下的再生或发育成胚胎的能力。我们的调查表明,染色质结构上的差异可能确保分生组织化的干细胞具有监督的自由性和多能性,而胚胎发生的干细胞不受监督,具有自主性,因此具有全能性。

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