Werner Tomás, Schmülling Thomas
Institute of Biology/Applied Genetics, Dahlem Centre of Plant Sciences (DCPS), Freie Universität Berlin, Albrecht-Thaer-Weg 6, D-14195 Berlin, Germany.
Curr Opin Plant Biol. 2009 Oct;12(5):527-38. doi: 10.1016/j.pbi.2009.07.002. Epub 2009 Sep 7.
Cytokinin regulates many important aspects of plant development in aerial and subterranean organs. The hormone is part of an intrinsic genetic network controlling organ development and growth in these two distinct environments that plants have to cope with. Cytokinin also mediates the responses to variable extrinsic factors, such as light conditions in the shoot and availability of nutrients and water in the root, and has a role in the response to biotic and abiotic stress. Together, these activities contribute to the fine-tuning of quantitative growth regulation in plants. We review recent progress in understanding the cytokinin system and its links to the regulatory pathways that respond to internal and external signals.
细胞分裂素调控植物地上和地下器官发育的许多重要方面。该激素是一个内在遗传网络的一部分，这个网络控制着植物在这两种不同环境中器官的发育和生长，而植物必须应对这些环境。细胞分裂素还介导对各种外部可变因素的反应，例如地上部分的光照条件以及根部养分和水分的可利用性，并且在对生物和非生物胁迫的反应中发挥作用。这些活动共同有助于植物定量生长调节的微调。我们综述了在理解细胞分裂素系统及其与响应内部和外部信号的调控途径之间联系方面的最新进展。
