Frances C. Sussmilch, Tobias Maierhofer, Johannes Herrmann, Lena J. Voss, Christof Lind, Maxim Messerer, Heike M. Müller, Maria S. Bünner, Peter Ache, Klaus F. X. Mayer, Dirk Becker, M. Rob G. Roelfsema, Dietmar Geiger, Jörg Schultz, Rainer Hedrich
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引用次数: 0
摘要
可调节气孔的进化是陆地生命发展过程中最重要的事件之一。在这里，我们研究了调节气孔运动的保卫细胞信号通路是如何进化的。我们比较了蕨类植物和被子植物的保卫细胞转录组和生理反应，并研究了来自不同植物物种的离子通道的功能。我们发现，尽管蕨类植物守护细胞中的表达是一致的，但 SLAC/SLAH 家族的阴离子通道并没有被被子植物中引发气孔关闭的脱落酸（ABA）途径激活。因此，我们发现蕨类植物气孔对 ABA 不敏感。此外，我们的分析表明，蕨类植物的进化史十分复杂，其特点是 SLAC 激活机制的多次增益和/或丧失，因为这些通道在气孔关闭过程中发挥了作用。我们的研究结果表明，有花植物和无花植物的保卫细胞具有相似的核心特征，其行为差异的背后很可能是与品系特异性和生态位相关的适应性。
期刊介绍：
New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.
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