Max Planck Institute of Molecular Plant Physiology, Energy Metabolism Research Group, Potsdam-Golm, Germany.
New Phytol. 2011 May;190(3):550-5. doi: 10.1111/j.1469-8137.2010.03562.x. Epub 2010 Nov 22.
The oxygen availability to plant tissues can vary strongly in time and space. To endure short- or long-term oxygen deprivation, plants evolved a series of metabolic and morphological adaptations that have been extensively studied. However, our knowledge of the molecular regulation of these processes is not as well understood. In this review, the recent findings on the molecular effectors that regulate the response of higher plants to oxygen deficiency are discussed. Although no direct oxygen sensor has been discovered in plants so far, mechanisms that perceive low-oxygen derived signals have been reported, involving different sets of transcription factors (TFs). The ERF (Ethylene Responsive Factor) family especially appears to play a crucial role in the determination of survival to reduced oxygen availability in Arabidopsis and rice. This class of TFs displays a broad range of targets, being involved in both the metabolic reprogramming and the morphological adaptations exploited by plants when subjected to low-oxygen conditions.
植物组织的氧气供应在时间和空间上可能会有很大的变化。为了耐受短期或长期的缺氧，植物进化出了一系列代谢和形态适应，这些适应已经得到了广泛的研究。然而，我们对这些过程的分子调控机制的了解还不够深入。在这篇综述中，讨论了最近发现的调节高等植物对缺氧反应的分子效应子。尽管迄今为止在植物中还没有发现直接的氧气传感器，但已经报道了感知低氧衍生信号的机制，涉及不同的转录因子（TFs）组。ERF（Ethylene Responsive Factor）家族在拟南芥和水稻中对确定对低氧的生存能力方面似乎起着至关重要的作用。这一类 TF 具有广泛的靶标，参与了植物在低氧条件下进行的代谢重编程和形态适应。
