Nemhauser Jennifer L
Department of Biology, Box 351800, University of Washington, Seattle, WA 98195-1800, United States.
Curr Opin Plant Biol. 2008 Feb;11(1):4-8. doi: 10.1016/j.pbi.2007.10.005. Epub 2007 Nov 28.
Plant growth is shaped by the dynamic integration of environmental, developmental, and metabolic cues. Information from many of these input pathways feeds into the highly connected network of small molecule phytohormones. Signal transduction components for most plant hormones are known and mapping of hormone interactions within the network is well underway. Recent investigations of seedling photomorphogenesis, using well-established physiological and genetic tools in combination with sophisticated application of newer genomic technologies, provide a systems-level view of early seedling development. Factors, such as light, the circadian clock, and organ-specific developmental programs, profoundly influence the hormone network. The integrative approaches described here clarify the mechanisms of signal integration while revealing the flexibility of such relationships.
植物生长受到环境、发育和代谢信号动态整合的影响。来自许多这些输入途径的信息流入高度连通的小分子植物激素网络。大多数植物激素的信号转导成分已为人所知，并且该网络内激素相互作用的图谱绘制工作正在顺利进行。最近利用成熟的生理和遗传工具并结合更新的基因组技术的复杂应用对幼苗光形态建成进行的研究，提供了幼苗早期发育的系统层面视图。诸如光、生物钟和器官特异性发育程序等因素深刻影响着激素网络。这里描述的综合方法阐明了信号整合的机制，同时揭示了这种关系的灵活性。
