Dissecting Hierarchies between Light, Sugar and Auxin Action Underpinning Root and Root Hair Growth.
Dissecting Hierarchies between Light, Sugar and Auxin Action Underpinning Root and Root Hair Growth.
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DOI：
10.3390/plants10010111
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发表时间：
2021-01-07
期刊：
影响因子：
--
通讯作者：
Retzer K
中科院分区：
文献类型：
--
作者：
García-González J;Lacek J;Retzer K
植物的根具有很强的可塑性，可以在非生物胁迫反应中调节其组织结构和细胞外观。以往的研究表明，直接光照和补糖掩盖了根系生长的表型和性状。糖和光信号进一步与生长素的生物合成和沿根分布的变化有关。生长素信号传导几乎支持所有与根性状建立相关的过程，包括根总长度、向地生长、根毛形成和伸长。根毛的可塑性可以最大限度地吸收养分，从而提高植物的生产力，而根毛的引发和伸长需要适当的生长素供应。生长培养基中有蔗糖存在时，根毛的出芽部分得到恢复，但根毛伸长的全部潜力丧失。在我们的工作中，我们描述了一个组合研究，表明光和蔗糖在多大程度上拮抗影响根长，但增加影响根毛的出芽和伸长。此外，我们还结合所有生长条件研究了生长素外排载体pin - formmed2的缺失对根系性状建立的影响。pin - formmed2介导生长素向茎向转运。
Plant roots are very plastic and can adjust their tissue organization and cell appearance during abiotic stress responses. Previous studies showed that direct root illumination and sugar supplementation mask root growth phenotypes and traits. Sugar and light signaling where further connected to changes in auxin biosynthesis and distribution along the root. Auxin signaling underpins almost all processes involved in the establishment of root traits, including total root length, gravitropic growth, root hair initiation and elongation. Root hair plasticity allows maximized nutrient uptake and therefore plant productivity, and root hair priming and elongation require proper auxin availability. In the presence of sucrose in the growth medium, root hair emergence is partially rescued, but the full potential of root hair elongation is lost. With our work we describe a combinatory study showing to which extent light and sucrose are antagonistically influencing root length, but additively affecting root hair emergence and elongation. Furthermore, we investigated the impact of the loss of PIN-FORMED2, an auxin efflux carrier mediating shootward auxin transporter, on the establishment of root traits in combination with all growth conditions.
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葡萄糖和生长素信号传导相互作用在控制拟南芥幼苗根生长和发育中。
影响因子：
3.7
作者：
Mishra BS;Singh M;Aggrawal P;Laxmi A
通讯作者：
Laxmi A
影响因子：
64.8
作者：
Blilou, I;Xu, J;Scheres, B
通讯作者：
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影响因子：
5.6
作者：
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Menand B
影响因子：
20.5
作者：
Korver RA;Koevoets IT;Testerink C
通讯作者：
Testerink C
DOI：
10.1073/pnas.0808073105
发表时间：
2008-11-18
影响因子：
11.1
作者：
Kleine-Vehn, Juergen;Leitner, Johannes;Friml, Jiri
通讯作者：
Friml, Jiri