植物激素调控顶端分生组织发育的研究进展

Progress in Phytohormones Regulating Apical Meristem Development

植物分生组织的发育主要依赖于植物体内多功能干细胞群体,并受多种激素的共同调控,其中生长素和细胞分裂素调控通路及其相互作用是调控分生组织形成和分化的主要因素。了解植物分生组织的形态建成及信号途径相关分子机制,将加深人们对植物生长发育调控的认识,为植物资源进一步开发和利用提供理论基础。为此,综述了植物顶端分生组织的结构特征及核心调控基因,对植物激素(生长素、细胞分裂素、赤霉素、脱落酸、独脚金内酯、茉莉酸)协同调控植物分生组织发育的分子机制进行了深入阐述,并展望了该领域今后的主要研究方向。

The development of plant meristems mainly relies on multifunctional stem-cell populations in plants and is controlled by a variety of hormones.Furthermore,the regulation pathways and interactions of auxin and cytokinin are the main regulatory factors to the formation and differentiation of meristems.Investigating the morphogenesis of plant meristems and related molecular mechanisms of signal pathways will deepen our understanding of the regulation of plant growth and development,and provide a theoretical basis for the further development and utilization of plant resources.Thus,the structure character and core regulatory pathways of plant apical meristem were reviewed,and the molecular regulatory mechanisms of phytohormones (auxin,cytokinin,gibberellins,abscisic acid,strigolactone,jasmonic acid) synergistically regulating the development of plant meristem were further elaborated.The research directions in the future were discussed in this paper.