ARF和Aux/IAA调控果实发育成熟机制研究进展

doi:10.13560/j.cnki.biotech.bull.1985.2017-0506

摘要/Abstract

摘要： 生长素是调控果实发育成熟的重要植物激素之一。在生长素介导的信号转导机制中，ARF和Aux/IAA扮演重要的角色。ARF与生长素响应基因启动子区域内的生长素响应元件结合，促进或抑制基因的表达。Aux/IAA通过结构域Ⅲ和Ⅳ与ARF 特异性结合，从而调节生长素早期应答基因的转录功能。研究表明，ARF因子参与调控果实形态发育、硬度和糖分积累等，Aux/IAA因子在授粉、果实形态发育等方面作用明显。此外ARF和Aux/IAA之间相互或与自身发生的互作以调控下游基因表达是植物体响应生长素信号的主要机制。介绍了ARF和Aux/IAA的结构特征、在不同植物中的分布状况以及与果实发育成熟的关系，同时讨论了ARF和Aux/IAA互作的研究现状，旨为进一步阐明生长素调控果实发育成熟的机制提供参考。

关键词: ARF, Aux/IAA, 果实, 发育与成熟, 调控机制

Abstract: The auxin is one of key essential plant hormones regulating fruit development and ripening. Aux/IAAs and auxin response factors（ARFs）play central roles in auxin-mediated signal transduction mechanism. ARF proteins combine with the auxin-responsive elements in the promoters of auxin-responding genes to promote or inhibit gene expression. Aux/IAA proteins，through specific binding of their common domains III and IV with ARF，regulate the transcriptional activity of early response genes of auxin. The researches indicate that ARF participates in the regulation of fruit morphology development，hardness，sugar accumulation，etc.；Aux/IAA plays a significant role in pollination and fruit morphology etc. In addition，the interactions of Aux/IAA and ARF or themselves regulate downstream gene expressions，which is the main mechanism of plant response to auxin regulation. In this review，we summarized the structures of ARF and Aux/IAA，the distribution characteristics in varied plants，and the regulating function in fruit ripening development and signal transduction. The research status on the interaction of ARFs and Aux/IAA was also discussed, which will provide knowledge for reveal the mechanism of auxin control of fruit development and ripening.

Key words: ARF, Aux/IAA, fruit, development and ripening, regulating mechanism

胡晓, 侯旭, 袁雪, 管丹, 刘悦萍，. ARF和Aux/IAA调控果实发育成熟机制研究进展[J]. 生物技术通报, 2017, 33(12): 37-44.

HU Xiao, HOU Xu, YUAN Xue, GUAN Dan, LIU Yue-ping. Research Progress on Mechanism of ARF and Aux/IAA Regulating Fruit Development and Ripening[J]. Biotechnology Bulletin, 2017, 33(12): 37-44.

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