Flowers under pressure: ins and outs of turgor regulation in development.
Flowers under pressure: ins and outs of turgor regulation in development.
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DOI：
10.1093/aob/mcu187
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发表时间：
2014-11
期刊：
影响因子：
4.2
通讯作者：
Boudaoud A
中科院分区：
文献类型：
--
作者：
Beauzamy L;Nakayama N;Boudaoud A
膨压是植物的一个基本特征;然而，尽管其生理学重要性被明确地认识到，但其与发育的相关性往往被降低为在细胞伸长中的作用。本文综述了膨压在发育中的作用、膨压调节的分子机制以及用于测量膨压和相关量的方法，同时还涵盖了与植物水势和水流相关的基本概念。花发育的三个关键过程，然后考虑更具体的：花开放，花药开裂和花粉管生长。膨压及其调节的许多分子决定因素已被表征，而一些方法现在可用于量化水势，膨压和水力传导性。开花，花药开裂和侧根出现的数据表明，膨压需要在发展过程中，在空间和时间上进行微调。预计生物实验和物理测量的结合将加强现有的数据，并揭示膨压在发展中意想不到的作用。
Turgor pressure is an essential feature of plants; however, whereas its physiological importance is unequivocally recognized, its relevance to development is often reduced to a role in cell elongation. This review surveys the roles of turgor in development, the molecular mechanisms of turgor regulation and the methods used to measure turgor and related quantities, while also covering the basic concepts associated with water potential and water flow in plants. Three key processes in flower development are then considered more specifically: flower opening, anther dehiscence and pollen tube growth. Many molecular determinants of turgor and its regulation have been characterized, while a number of methods are now available to quantify water potential, turgor and hydraulic conductivity. Data on flower opening, anther dehiscence and lateral root emergence suggest that turgor needs to be finely tuned during development, both spatially and temporally. It is anticipated that a combination of biological experiments and physical measurements will reinforce the existing data and reveal unexpected roles of turgor in development.
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