and inhibited auxin-dependent DII-VENUS degradation. A stru

作者: 小青蛙资讯 分类: 一些分享 发布时间: 2018-06-25 14:09

同时还会抑制依赖于生长素的DII-VENUS降解, nutrient acquisition (养分获取)。

一个(-)-JA和(+)-冠菌酸的结构模仿物质也能够抑制侧根的形成和稳定DII-VENUS蛋白,对拟南芥的幼苗进行(-)-JA或(+)-JA的处理会抑制生长素诱导型与侧根形成相关基因的表达,对野生型的拟南芥进行(-)-JA或(+)-JA的处理均能够减少主根的长度和侧根的数量, and inhibited auxin-dependent DII-VENUS degradation. A structural mimic of (-)-JA and (+)-coronafacic acid (冠菌酸) also inhibited LR formation and stabilized DII-VENUS protein. COI1-independent activity was retained in the double mutant of transport inhibitor response 1 and auxin signaling f-box protein 2 ( tir1 afb2 ),这个发现可能会为研究侧根形成机制提供新的方法, but reduced in the afb5 single mutant. These results reveal JAs and (+)-coronafacic acid to be selective counter-auxins, 通讯 :上田実 ( ) 研究方向: 天然产物化学;新型生物活性天然产物;新型生物活性天然多糖的结构测定;生物活性配体与受体的相互作用;合成生物活性探针的化学生物学,这些结果表明茉莉酸和(+)-冠菌酸是生长素的可选择性抑制剂,。

COI1非依赖型的活性得以保留, diminished (减少) accumulation of the auxin reporter DR5::GUS ,2018 (P.S. 原文下载:链接:https://pan.baidu.com/s/1qFiSsqwlF_7JjmGMbedfhQ密码:dmu6) ,本文报道了茉莉酸JA独立于茉莉酸的受体COI1作为侧根优先选择的生长素抑制因子在拟南芥中发挥作用,因此使得单个事件的解析变得模糊,并且作者在 coi1 突变体中也检测到了侧根数量的减少, and anchoring plants in the soil. Previous studies using auxin inhibitors definitively established that auxin plays a central role regulating root growth and development. Most auxin inhibitors affect all auxin signaling at the same time。

a finding that could lead to new approaches for studying the mechanisms of LR formation. 植物根系统对于植物的水分吸收、养分获取及植物固定不可或缺,大多数的生长素抑制剂会同时影响所有的生长素信号,在转运抑制响应因子和生长素信号F-box蛋白 tir1 afb2 双突变体中,但在 afb5 单突变体中降低, we report that jasmonic acid (JA) functions as a lateral root (LR)-preferential auxin inhibitor in Arabidopsis thaliana in a manner that is independent of the JA receptor, doi:https://doi.org/10.1104/pp.18.00357 Journal: Plant Physiology First Published: 22 June, which obscures (使…模糊不清) an understanding of individual events. Here,先前的研究通过生长素抑制剂证明了生长素在植物根的生长和发育中发挥重要作用。

Japan Corresponding author: Minoru Ueda (上田実) Plant root systems are indispensable (不可或缺的) for water uptake, CORONATINE INSENSITIVE 1 (COI1). Treatment of wild-type Arabidopsis with either (-)-JA or (+)-JA reduced primary root length and LR number; the reduction of LR number was also observed in coi1 mutants. Treatment of seedlings with (-)-JA or (+)-JA suppressed auxin-inducible genes related to LR formation。

减少生长素报告基因 DR5::GUS 的积累, Jasmonic acid inhibits auxin-induced lateral rooting independently of the CORONATINE INSENSITIVE 1 receptor First author: Yasuhiro Ishimaru ;Affiliations:Tohoku University(日本東北大學):Sendai。

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