生物技术通报 ›› 2017, Vol. 33 ›› Issue (12): 37-44.doi: 10.13560/j.cnki.biotech.bull.1985.2017-0506

• 综述与专论 • 上一篇    下一篇

ARF和Aux/IAA调控果实发育成熟机制研究进展

胡晓1, 侯旭2, 袁雪2, 管丹1, 刘悦萍2,3   

  1. 1. 北京农学院植物科学技术学院,北京 102206;
    2. 北京农学院生物科学与工程学院,北京 102206;
    3. 北京林果业生态环境功能提升协同创新中心,北京 102206
  • 收稿日期:2017-06-16 出版日期:2017-12-25 发布日期:2017-12-21
  • 作者简介:胡晓,女,硕士,研究方向:果实发育生理与分子生物学;E-mail:hxiao_0323@sina.com
  • 基金资助:
    2015年度新型生产经营主体科技能力提升工程项目(20150203-01)

Research Progress on Mechanism of ARF and Aux/IAA Regulating Fruit Development and Ripening

HU Xiao1, HOU Xu2, YUAN Xue2, GUAN Dan1, LIU Yue-ping2, 3   

  1. 1.Plant Science and Technology College,Beijing University of Agriculture,Beijing 102206;
    2. College of Biological Science and Engineering,Beijing University of Agriculture,Beijing 102206;
    3. Beijing Collaborative Innovation Center for Eco-environmental Improvement with Forestry and Fruit Trees,Beijing 102206
  • Received:2017-06-16 Published:2017-12-25 Online:2017-12-21

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