Regulation of ARGONAUTE10 Expression Enables Temporal and Spatial Precision in Axillary Meristem Initiation in Arabidopsis.

Regulation of ARGONAUTE10 Expression Enables Temporal and Spatial Precision in Axillary Meristem Initiation in Arabidopsis.
复制标题

DOI:
10.1016/j.devcel.2020.10.019
复制
发表时间:
2020-12-07
期刊:
影响因子:
11.8
通讯作者:
Chen X
Chen X
中科院分区:
生物学1区
文献类型:
--
作者:
Zhang C;Fan L;Le BH;Ye P;Mo B;Chen X

文献摘要

参考文献

相似文献

腋生分生组织(AMs)产生侧枝,对植物的结构至关重要。了解发育线索和环境信号如何影响AM发育将有助于改善农业植物结构。在这里,我们发现ARGONAUTE10 (AGO10)通过miR165/166靶基因REVOLUTA促进AM发育。研究发现,在生长素、油菜素内酯和光照的作用下,AGO10的表达在时间和空间上受到精确的控制,导致AM在一定年龄仅在叶腋发生。生长素反应因子5激活,油菜素耐药因子1激活,光敏色素相互作用因子4直接抑制AGO10转录。在幼叶腋中,BZR1和PIF4抑制AGO10的表达,阻止AM的起始。在老叶腋中,ARF5上调AGO10的表达,促进AM的起始。我们的研究结果揭示了AM发育的时空控制是通过激素和光汇聚在microRNA调节剂上的合作进行的。腋生分生组织(AMs)产生侧枝。了解AM的发展是如何被调节的,将有助于改善工厂结构。Zhang等人发现ARGONAUTE10的表达受生长素、油菜素内酯和光的控制,以时空精确的方式导致AM的起始。
Axillary meristems (AMs) give rise to lateral shoots and are critical to plant architecture. Understanding how developmental cues and environmental signals impact AM development will enable the improvement of plant architecture in agriculture. Here, we show that ARGONAUTE10 (AGO10), which sequesters miR165/166, promotes AM development through the miR165/166 target gene REVOLUTA. We reveal that AGO10 expression is precisely controlled temporally and spatially by auxin, brassinosteroids, and light to result in AM initiation only in the axils of leaves at a certain age. AUXIN RESPONSE FACTOR 5 activates while BRASSINAZOLE-RESISTANT 1, and PHYTOCHROME-INTERACTING FACTOR 4 repress AGO10 transcription directly. In axils of young leaves, BZR1 and PIF4 repress AGO10 expression to prevent AM initiation. In axils of older leaves, ARF5 upregulates AGO10 expression to promote AM initiation. Our results uncover the spatiotemporal control of AM development through the cooperation of hormones and light converging on a regulator of microRNA. Axillary meristems (AMs) give rise to lateral shoots. Understanding how AM development is regulated will enable the improvement of plant architecture. Zhang et al. find that ARGONAUTE10 expression is controlled by auxin, brassinosteroids, and light to result in AM initiation in a spatiotemporally precise manner.
DOI: 10.1016/j.cub.2005.09.052
发表时间: 2005-11-08
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Heisler, MG;Ohno, C;Meyerowitz, EM
通讯作者: Meyerowitz, EM
DOI: 10.1073/pnas.1210799110
发表时间: 2012-12-18
影响因子: 11.1
作者:
Gendron, Joshua M.;Liu, Jiang-Shu;Wang, Zhi-Yong
通讯作者: Wang, Zhi-Yong
DOI: 10.1126/science.1107580
发表时间: 2005-03-11
期刊: SCIENCE
影响因子: 56.9
作者:
He, JX;Gendron, JM;Wang, ZY
通讯作者: Wang, ZY
DOI: 10.1016/j.cub.2016.03.067
发表时间: 2016-06-06
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Burian, Agata;de Reuille, Pierre Barbier;Kuhlemeier, Cris
通讯作者: Kuhlemeier, Cris
DOI: 10.1104/pp.109.148833
发表时间: 2010-04-01
期刊: PLANT PHYSIOLOGY
影响因子: 7.4
作者:
Finlayson, Scott A.;Krishnareddy, Srirama R.;Casal, Jorge J.
通讯作者: Casal, Jorge J.