The Clickable Guard Cell, Version II: Interactive Model of Guard Cell Signal Transduction Mechanisms and Pathways.
The Clickable Guard Cell, Version II: Interactive Model of Guard Cell Signal Transduction Mechanisms and Pathways.
复制标题
DOI：
10.1199/tab.0114
复制
发表时间：
2008-01-01
期刊：
影响因子：
--
通讯作者：
Schroeder, Julian I
中科院分区：
文献类型：
--
作者：
Kwak, June M;Maser, Pascal;Schroeder, Julian I
保卫细胞位于叶表皮，成对的保卫细胞包围并形成气孔，调节大气中CO（2）流入叶片进行光合固碳。气孔保卫细胞还调节植物通过蒸腾作用向大气中的水分损失。保卫细胞的信号转导机制整合了多种不同的刺激来调节气孔开度。气孔对光有反应。气孔关闭响应干旱胁迫，高CO（2），臭氧和低湿度。为了应对干旱，植物合成激素脱落酸（阿坝），触发气孔关闭。保卫细胞已经成为一个高度发达的模型系统，用于解剖植物中的信号转导机制，并阐明单个信号转导机制如何在单个细胞的网络中相互作用。在过去的几年里，有许多新的发现。本章是对上一版《拟南芥书》（Maser et al. 2003）中电子交互章节的更新。在这里，我们专注于基因和突变的特点，包括有大量的信号，生化和遗传证据的信号成分的机制。离子通道已被证明代表早期信号转导机制的目标，并提供功能信号和定量分析点，以确定突变在哪里以及如何影响保卫细胞信号网络中的分支。尽管近年来已经鉴定了大量在保卫细胞信号传导中起作用的基因和蛋白质，但还有更多的基因和蛋白质有待鉴定，并且该网络中的蛋白质-蛋白质相互作用将是未来研究的重要课题。该出版物的完全交互式可点击电子版可在以下网站上查阅：http://www-biology.ucsd.edu/labs/schroeder/clickablegc2/。交互式可点击版本包括以下功能：图1.阿坝信号传导中离子通道作用的模型。图2。保卫细胞中的蓝光信号通路。图3。保卫细胞中的阿坝信号通路。图1是鼠标悬停时出现的解释。图2和图3可点击并链接到信息框，信息框又链接到TAIR，PubMed中的相关摘要，以及Schroeder et al（2001）的更新背景解释，经植物生物学年度评论许可使用。
Guard cells are located in the leaf epidermis and pairs of guard cells surround and form stomatal pores, which regulate CO(2) influx from the atmosphere into leaves for photosynthetic carbon fixation. Stomatal guard cells also regulate water loss of plants via transpiration to the atmosphere. Signal transduction mechanisms in guard cells integrate a multitude of different stimuli to modulate stomatal apertures. Stomata open in response to light. Stomata close in response to drought stress, elevated CO(2), ozone and low humidity. In response to drought, plants synthesize the hormone abscisic acid (ABA) that triggers closing of stomatal pores. Guard cells have become a highly developed model system for dissecting signal transduction mechanisms in plants and for elucidating how individual signaling mechanisms can interact within a network in a single cell. Many new findings have been made in the last few years. This chapter is an update of an electronic interactive chapter in the previous edition of The Arabidopsis Book (Maser et al. 2003). Here we focus on mechanisms for which genes and mutations have been characterized, including signaling components for which there is substantial signaling, biochemical and genetic evidence. Ion channels have been shown to represent targets of early signal transduction mechanisms and provide functional signaling and quantitative analysis points to determine where and how mutations affect branches within the guard cell signaling network. Although a substantial number of genes and proteins that function in guard cell signaling have been identified in recent years, there are many more left to be identified and the protein-protein interactions within this network will be an important subject of future research. A fully interactive clickable electronic version of this publication can be accessed at the following web site: http://www-biology.ucsd.edu/labs/schroeder/clickablegc2/. The interactive clickable version includes the following features: Figure 1. Model for the roles of ion channels in ABA signaling.Figure 2. Blue light signaling pathways in guard cells.Figure 3. ABA signaling pathways in guard cells.Figure 1 is linked to explanations that appear upon mouse-over. Figure 2 and Figure 3 are clickable and linked to info boxes, which in turn are linked to TAIR, to relevant abstracts in PubMed, and to updated background explanations from Schroeder et al (2001), used with permission of Annual Reviews of Plant Biology.