Howard Hughes Medical Institute and Laboratory of Molecular Biology, University of Wisconsin, Madison, WI 53706, USA.
Dev Biol. 2012 Sep 1;369(1):19-31. doi: 10.1016/j.ydbio.2012.05.039. Epub 2012 Jun 9.
Auxin is implicated throughout plant growth and development. Although the effects of this plant hormone have been recognized for more than a century, it is only in the past two decades that light has been shed on the molecular mechanisms that regulate auxin homeostasis, signaling, transport, crosstalk with other hormonal pathways as well as its roles in plant development. These discoveries established a molecular framework to study the role of auxin in land plant evolution. Here, we review recent advances in auxin biology and their implications in both micro- and macro-evolution of plant morphology. By analogy to the term 'hoxology', which refers to the critical role of HOX genes in metazoan evolution, we propose to introduce the term 'auxology' to take into account the crucial role of auxin in plant evo-devo.
生长素在植物生长和发育的各个方面都有涉及。尽管这种植物激素的作用已经被人们认识了一个多世纪，但直到过去二十年，人们才揭示了调节生长素稳态、信号转导、运输、与其他激素途径的串扰以及在植物发育中的作用的分子机制。这些发现为研究生长素在陆地植物进化中的作用奠定了分子框架。在这里，我们回顾了生长素生物学的最新进展及其对植物形态微观和宏观进化的影响。通过类比“同源域学”这个术语，它指的是 HOX 基因在后生动物进化中的关键作用，我们建议引入“生长素学”这个术语，以考虑到生长素在植物进化发育中的关键作用。
