Institute of Cellular and Molecular Botany, Department of Ecophysiology, University of Bonn, Kirschallee 1, D-53115 Bonn, Germany.
Trends Plant Sci. 2010 Oct;15(10):546-53. doi: 10.1016/j.tplants.2010.06.004. Epub 2010 Jul 23.
Cutinized leaf epidermal cells and suberized root cell walls form important lipophilic interfaces between the plant and its environment, significantly contributing to the regulation of water uptake and the transport of solutes in and out of the plant. A wealth of new molecular information on the genes and enzymes contributing to cutin, suberin and wax biosynthesis have become available within the past few years, which is examined in the context of the functional properties of these barriers in terms of transport and permeability. Recent progress made in measuring transport properties of cutinized and suberized barriers in plants is reviewed, and promising approaches obtained with Arabidopsis and potato that might link the molecular information with transport properties are suggested.
角质化的叶表皮细胞和木栓化的根细胞壁在植物与其环境之间形成重要的亲脂性界面，显著影响水分的吸收和溶质在植物内外的运输。在过去的几年中，有关参与角质、木栓质和蜡生物合成的基因和酶的大量新分子信息已经可用，本文从这些屏障的运输和渗透性的功能特性方面对其进行了研究。本文回顾了近年来在测量植物角质化和木栓化屏障的运输特性方面所取得的进展，并提出了利用拟南芥和马铃薯获得的有前途的方法，这些方法可能将分子信息与运输特性联系起来。
