Alternative mitochondrial electron transport proteins in the higher plants
Alternative mitochondrial electron transport proteins in the higher plants
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DOI：
10.1007/978-1-4020-2400-9_9
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发表时间：
2004
影响因子：
3.2
通讯作者：
Patrick M. Finnegan;K. Soole;A. L. Umbach
中科院分区：
文献类型：
--
作者：
Patrick M. Finnegan;K. Soole;A. L. Umbach
所谓的”替代”电子传递蛋白，鱼藤酮不敏感的NAD（P）H转移酶和替代氧化酶，将植物线粒体的内膜与其动物对应物区分开来。这些蛋白质为具有它们的植物组织提供了调节能量通过呼吸电子传递保存的效率的潜力。至少从1778年开始，与这些酶相关的活动就引起了科学家的兴趣，当时拉马克评论了一些高度专业化的花所显示的产热作用，现在已知替代电子传递蛋白在这个过程中起着重要作用。近年来，人们进行了许多研究来确定替代电子传递蛋白的性质，并了解它们在植物生理学中的作用。我们讨论，在一个历史的角度来看，我们目前的理解的生物化学和分子生物学的酶，包括其生化调节。我们还讨论了这些酶在植物正常和逆境生理中的可能作用，以及这些酶之间的生理相互作用和经典的呼吸途径。
The so-called" alternative" electron transport proteins, the rotenone-insensitive NAD (P) H dehydrogenases and the alternative oxidase, distinguish the inner membrane of plant mitochondria from its animal counterpart. These proteins provide plant tissues possessing them with the potential to modulate the efficiency with which energy is conserved by respiratory electron transport. The activities associated with these enzymes have intrigued scientists from at least 1778, when Lamarck commented on the thermogenesis displayed by some highly specialized flowers, a process in which alternative electron transport proteins are now known to have an important role. In more recent times, many studies have been undertaken to determine the nature of the alternative electron transport proteins and to understand their role in plant physiology. We discuss, within a historical perspective, our current understanding of the biochemistry and molecular biology of the enzymes, including their biochemical regulation. We also discuss the possible roles of the enzymes in the normal and stress physiology of plants, and the physiological interactions of the enzymes with each other and the classical respiratory pathway.