Sucrose regulates plant responses to deficiencies in multiple nutrients
Sucrose regulates plant responses to deficiencies in multiple nutrients
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DOI：
10.4161/psb.6.8.16378
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发表时间：
2011-01-01
影响因子：
2.9
通讯作者：
Liu, Dong
中科院分区：
文献类型：
--
作者：
Lei, Mingguang;Liu, Dong
过量积累蔗糖的拟南芥突变体hps 1在植物对磷酸盐饥饿反应的几乎所有方面都增强了敏感性。对hps1的详细研究表明，蔗糖是植物磷酸盐响应的全局调节剂。在这里，我们发现hps1也对氮和钾的缺乏，以及总的常量营养素水平的降低非常敏感。这些结果表明，蔗糖调节植物对多种营养素的缺乏反应，是对营养剥夺的一般反应的一部分。
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.