葡萄糖与植物激素在拟南芥根系定向生长调控中的相互作用。
Glucose and phytohormone interplay in controlling root directional growth in Arabidopsis.
作者信息
Singh Manjul, Gupta Aditi, Laxmi Ashverya
机构信息
a National Institute of Plant Genome Research; Aruna Asaf Ali Marg; New Delhi, India.
出版信息
Plant Signal Behav. 2014;9(7):e29219. doi: 10.4161/psb.29219.
Abstract
Sensing and responding toward gravity vector is a complicated and multistep process. Gravity is a constant factor feeding plants with reliable information for the spatial orientation of their organs. Auxin, cytokinin, ethylene and BRs have been the most explored hormones in relation to gravitropism. We have previously shown that glucose (Glc) could promote brassinosteroid (BR) signaling thereby inducing changes in root directional growth. Auxin signaling and polar transport components are also involved in Glc induced changes in root directional growth. Here, we provide evidence for involvement of cytokinin and ethylene signaling components in regulation of root directional growth downstream to Glc and BR. Altogether, Glc mediated change in root direction is an adaptive feature which is a result of a collaborative effort integrating phytohormonal signaling cues.
摘要
感知重力矢量并对其做出反应是一个复杂的多步骤过程。重力是一个恒定因素，为植物提供有关其器官空间定向的可靠信息。生长素、细胞分裂素、乙烯和油菜素内酯（BRs）是与向重力性相关研究最多的激素。我们之前已经表明，葡萄糖（Glc）可以促进油菜素内酯（BR）信号传导，从而诱导根定向生长的变化。生长素信号传导和极性运输成分也参与了Glc诱导的根定向生长变化。在这里，我们提供证据表明细胞分裂素和乙烯信号传导成分参与了在Glc和BR下游对根定向生长的调节。总之，Glc介导的根方向变化是一种适应性特征，是整合植物激素信号线索共同作用的结果。
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本文引用的文献
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