一氧化氮通过整合多种信号通路调节种子萌发
Nitric Oxide Regulates Seed Germination by Integrating Multiple Signalling Pathways
种子萌发对于植物发育和作物产量具有重要意义。最近,一氧化氮(NO)已被证明不仅是种子发育过程中重要的氮源,而且还参与植物对高盐、干旱和高温的多种胁迫反应。此外,NO还可以通过整合多种信号通路影响种子萌发过程。然而,由于NO气体活性的不稳定性,其精细调控种子萌发的网络机制仍不清楚。因此,本文旨在总结植物中NO复杂的合成代谢过程,分析NO触发的信号通路与脱落酸(ABA)、赤霉酸(GA)、乙烯(ET)和不同植物激素之间的相互作用机制。探讨NO参与非生物胁迫时种子的生理反应和分子机制,为解决种子休眠解除、提高植物抗逆性问题提供参考。
Seed germination is of great significance for plant development and crop yield.Recently,nitric oxide(NO)has been shown to not only serve as an important nitrogen source during seed development but also to participate in a va riety of stress responses in plants to high salt,drought,and high temperature.In addition,NO can affect the process of s eed germination by integrating multiple signaling pathways.However,due to the instability of NO gas activity,the networ k mechanism for its fine regulation of seed germination remains unclear.Therefore,this review aims to summarize the co mplex anabolic processes of NO in plants,to analyze the interaction mechanisms between NO-triggered signaling pathways and different plant hormones such as abscisic acid(ABA)and gibberellic acid(GA),ethylene(ET)and reactive oxygen species(ROS)signaling molecules,and to discuss the physiological responses and molecular mechanisms of seeds during t he involvement of NO in abiotic stress,so as to provide a reference for solving the problems of seed dormancy release a nd improving plant stress tolerance.
张悦;杨玲;
东北林业大学林学院林木遗传育种全国重点实验室,哈尔滨 150040;东北林业大学林学院林木遗传育种全国重点实验室,哈尔滨 150040;
nitric oxide seed dormancy seed germination plant hormones abiotic stress.
2045-2060 / 16
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