ETHYLENE IN SEED DEVELOPMENT, DORMANCY AND GERMINATION
ETHYLENE IN SEED DEVELOPMENT, DORMANCY AND GERMINATION
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DOI：
10.1002/9781118223086.ch8
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发表时间：
2012-01-01
期刊：
影响因子：
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通讯作者：
Gniazdowska, Agnieszka
中科院分区：
文献类型：
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作者：
Bogatek, Renata;Gniazdowska, Agnieszka
种子是高等植物传播和繁殖的器官。种子对应激环境条件相对不敏感，可以在土壤中以休眠状态存活多年。休眠的缓解导致发芽并最终幼苗生长，这些过程很复杂并且受到激素控制。许多植物物种在种子发育和发芽的最后阶段产生乙烯，并且应用一些种子休眠打破剂，例如HCN或NO，也会诱导乙烯产生。因此，有人提出乙烯有助于缓解种子休眠和发芽。乙烯在休眠释放和发芽过程中的作用也取决于与其他植物激素的相互作用，因此本章总结了我们目前对乙烯作用以及乙烯与其他植物激素（赤霉素、脱落酸、油菜素类固醇、茉莉酸酯和多胺）之间相互作用的了解。此外，还讨论了其他信号分子，例如活性氧（例如 H2O2）或活性氮（例如 NO）和 HCN 在种子生理调节中的作用。
Seeds are the organs by which higher plants disperse and propagate. Seeds are relatively insensitive to stress-inducing environmental conditions and can survive in the soil for many years in a dormant state. The alleviation of dormancy results in germination and finally seedling growth and these processes are complex and subject to hormonal control. Many plant species produce ethylene during the final phase of seed development and germination, and the application of some seed dormancy-breaking agents, for example HCN or NO, also induces ethylene production. Therefore, it has been proposed that ethylene contributes to the alleviation of seed dormancy as well as germination. The action of ethylene during dormancy release and germination also depends on interactions with other phytohormones, and so this chapter summarizes our current knowledge on the role of ethylene as well as crosstalk between ethylene and the other phytohormones (gibberellins, abscisic acid, brassinosteroids, jasmonate and polyamines). Further, other signalling molecules such as reactive oxygen species (e.g. H2O2) or reactive nitrogen species (e.g. NO) and HCN are also discussed in terms of their roles in the regulation of seed physiology.