Department of Biology, Wake Forest University, Winston-Salem, NC 27106, USA.
Trends Plant Sci. 2012 Apr;17(4):181-95. doi: 10.1016/j.tplants.2012.02.001. Epub 2012 Mar 7.
The individual roles of auxin and ethylene in controlling the growth and development of young seedlings have been well studied. In recent years, these two hormones have been shown to act synergistically to control specific growth and developmental processes, such as root elongation and root hair formation, as well as antagonistically in other processes, such as lateral root formation and hypocotyl elongation. This review examines the growth and developmental processes that are regulated by crosstalk between these two hormones and explores the mechanistic basis for the regulation of these processes. The emerging trend from these experiments is that ethylene modulates auxin synthesis, transport, and signaling with unique targets and responses in a range of tissues to fine-tune seedling growth and development.
生长素和乙烯在控制幼苗生长和发育中的个体作用已经得到了很好的研究。近年来，这两种激素已被证明在控制特定的生长和发育过程中协同作用，如根伸长和根毛形成，而在其他过程中则拮抗作用，如侧根形成和下胚轴伸长。本综述考察了这两种激素相互作用调节的生长和发育过程，并探讨了这些过程调节的机制基础。这些实验的一个新兴趋势是，乙烯以独特的靶标和反应在一系列组织中调节生长素的合成、运输和信号转导，从而精细地调节幼苗的生长和发育。
