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Root system regulation of whole plant growth.
Annual Review of Phytopathology ( IF 10.2 ) Pub Date : 1996-01-01 , DOI: 10.1146/annurev.phyto.34.1.325
R M Aiken 1 , A J Smucker
Affiliation  

New evidence confirms earlier postulates that root signals to shoots, including abscisic acid, nitrate flux, and cytokinins, modify whole plant growth processes including leaf expansion, stomatal behavior, and biosynthesis of photosynthetic enzymes. Root signals are thought to reflect soil water, nutrient, and mechanical attributes, as sensed by roots. Meristematic activities in root tips initiate changes in root architecture, modifying the soil volume subject to root uptake, and may provide multiple sensory and signaling capabilities. Knowledge of root signals regulating whole plant growth processes suggests new analytical and experimental tools for integrated analysis of plant phasic development, optimal growth, and ecological fitness.

中文翻译:

根系调节整个植物的生长。

新证据证实了较早的假设,即芽的根信号,包括脱落酸,硝酸盐通量和细胞分裂素,会改变整个植物的生长过程,包括叶片扩张,气孔行为和光合酶的生物合成。根信号被认为反映了根所感知的土壤水分,养分和机械特性。根尖中的分生活动引起根系结构的变化,改变了根系吸收的土壤体积,并可能提供多种感觉和信号传递能力。有关调节整个植物生长过程的根信号的知识为植物分阶段生长,最佳生长和生态适应性的综合分析提供了新的分析和实验工具。
更新日期:2019-11-01
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