MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, China.
Plant Signal Behav. 2011 Aug;6(8):1247-9. doi: 10.4161/psb.6.8.16378. Epub 2011 Aug 1.
Arabidopsis mutant hps1 that over-accumulates sucrose has enhanced sensitivity in almost all the aspects of plant responses to phosphate starvation. The detailed characterization of hps1 has led to the conclusion that sucrose is a global regulator of plant phosphate responses. Here, we show that hps1 is also hypersensitive to nitrogen and potassium deprivation, as well as to decreased levels of overall macronutrients. These results suggest that sucrose regulates plant deficiency responses to multiple nutrients and is part of a general response to nutrient deprivation.
拟南芥突变体 hps1 过度积累蔗糖，几乎增强了植物对磷酸盐饥饿响应的各个方面的敏感性。对 hps1 的详细特征分析得出结论，蔗糖是植物磷酸盐响应的全局调节剂。在这里，我们还表明 hps1 对氮和钾缺乏以及整体大量营养素水平降低也敏感。这些结果表明，蔗糖调节植物对多种养分的缺乏响应，并且是对养分缺乏的一般响应的一部分。
