Institute of Plant Sciences, University of Bern, Altenbergrain 21, CH-3013 Bern, Switzerland.
J Exp Bot. 2013 Nov;64(15):4729-44. doi: 10.1093/jxb/ert199. Epub 2013 Aug 7.
Morphogenesis does not just require the correct expression of patterning genes; these genes must induce the precise mechanical changes necessary to produce a new form. Mechanical characterization of plant growth is not new; however, in recent years, new technologies and interdisciplinary collaborations have made it feasible in young tissues such as the shoot apex. Analysis of tissues where active growth and developmental patterning are taking place has revealed biologically significant variability in mechanical properties and has even suggested that mechanical changes in the tissue can feed back to direct morphogenesis. Here, an overview is given of the current understanding of the mechanical dynamics and its influence on cellular and developmental processes in the shoot apex. We are only starting to uncover the mechanical basis of morphogenesis, and many exciting questions remain to be answered.
形态发生不仅需要正确表达模式基因，这些基因还必须诱导产生新形态所需的精确机械变化。植物生长的力学特性分析并不新鲜；然而，近年来，新技术和跨学科合作使得这在类似于茎尖这样的年轻组织中成为可能。对正在进行活跃生长和发育模式的组织进行分析表明，力学特性存在显著的生物学变异性，甚至表明组织中的机械变化可以反馈以直接指导形态发生。本文概述了目前对茎尖中机械动力学及其对细胞和发育过程影响的理解。我们才刚刚开始揭示形态发生的力学基础，还有许多令人兴奋的问题有待解答。
