Ethylene signaling in rice and Arabidopsis: New regulators and mechanisms,Journal of Integrative Plant Biology

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Ethylene signaling in rice and Arabidopsis: New regulators and mechanisms
Journal of Integrative Plant Biology ( IF 9.3 ) Pub Date : 2020-10-23 , DOI: 10.1111/jipb.13028
He Zhao ₁ , Cui-Cui Yin ₁ , Biao Ma ₂ , Shou-Yi Chen ₁ , Jin-Song Zhang _{1,

3}

Affiliation

Ethylene is a gaseous hormone which plays important roles in both plant growth and development and stress responses. Based on studies in the dicot model plant species Arabidopsis, a linear ethylene signaling pathway has been established, according to which ethylene is perceived by ethylene receptors and transduced through CONSTITUTIVE TRIPLE RESPONSE 1 (CTR1) and ETHYLENE‐INSENSITIVE 2 (EIN2) to activate transcriptional reprogramming. In addition to this canonical signaling pathway, an alternative ethylene receptor‐mediated phosphor‐relay pathway has also been proposed to participate in ethylene signaling. In contrast to Arabidopsis, rice, a monocot, grows in semiaquatic environments and has a distinct plant structure. Several novel regulators and/or mechanisms of the rice ethylene signaling pathway have recently been identified, indicating that the ethylene signaling pathway in rice has its own unique features. In this review, we summarize the latest progress and compare the conserved and divergent aspects of the ethylene signaling pathway between Arabidopsis and rice. The crosstalk between ethylene and other plant hormones is also reviewed. Finally, we discuss how ethylene regulates plant growth, stress responses and agronomic traits. These analyses should help expand our knowledge of the ethylene signaling mechanism and could further be applied for agricultural purposes.

中文翻译：

水稻和拟南芥中的乙烯信号：新的调控因子和机制

乙烯是一种气态激素，在植物生长发育和胁迫反应中都起着重要作用。基于对双子叶植物模式植物拟南芥的研究，已经建立了线性乙烯信号通路，根据该通路，乙烯被乙烯受体感知并通过结构性三重响应 1 (CTR1) 和 ETHYLENE-INSENSITIVE 2 (EIN2) 转导以激活转录重新编程。除了这种经典的信号传导途径外，还提出了另一种乙烯受体介导的磷中继途径参与乙烯信号传导。与拟南芥相比，水稻是一种单子叶植物，生长在半水生环境中，具有独特的植物结构。最近发现了几种新的水稻乙烯信号通路调控因子和/或机制，表明水稻中的乙烯信号通路具有其独特的特征。在这篇综述中，我们总结了最新进展，并比较了拟南芥和水稻乙烯信号通路的保守性和发散性。还回顾了乙烯与其他植物激素之间的串扰。最后，我们讨论了乙烯如何调节植物生长、胁迫反应和农艺性状。这些分析应该有助于扩展我们对乙烯信号机制的了解，并可以进一步应用于农业目的。

更新日期：2020-10-23

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