Multi-scale phenotyping of leaf expansion in response to environmental changes: the whole is more than the sum of parts
Multi-scale phenotyping of leaf expansion in response to environmental changes: the whole is more than the sum of parts
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DOI：
10.1111/j.1365-3040.2009.01955.x
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发表时间：
2009-09-01
影响因子：
7.3
通讯作者：
Tardieu, Francois
中科院分区：
文献类型：
--
作者：
Granier, Christine;Tardieu, Francois
叶是一个多尺度的动态单元，由不同组织尺度（细胞、组织、整叶和整株）的机制决定，并受内部（基因型）和外部（环境）决定因素的影响。最近发展的表型平台和成像技术提供了新的见解的时间和空间模式的叶片生长的影响，这些决定性。关于压倒一切的机制的结论往往取决于所考虑的组织规模和从几分钟到几周不等的时间分辨率。叶片生长对环境条件的反应分析表明，在整株或整叶尺度上出现了强有力的新特性。他们强调，控制单个叶片扩展比仅仅细胞过程的总和更复杂，并且在整个植物水平上的控制比单个叶片扩展的总和更复杂。然而，在许多情况下，综合叶片生长变量可以简化为一组有限的基本变量进行测量，比较分析叶片生长或建模的目的。
The leaf is a multi-scale dynamic unit that is determined by mechanisms at different organizational scales (cell, tissue, whole leaf and whole plant) and affected by both internal (genotype) and external (environmental) determinisms. The recent development of phenotyping platforms and imaging techniques provides new insights into the temporal and spatial patterns of leaf growth as affected by those determinisms. Conclusions about the overriding mechanisms often depend on the considered organizational scale and of time resolution which varies from minutes to several weeks. Analyses of leaf growth responses to environmental conditions have revealed robust emerging properties at whole plant or whole leaf scales. They have highlighted that the control of individual leaf expansion is more complex than merely the sum of cellular processes, and the control at the whole plant level is more complex than the sum of individual leaf expansions. However, in many cases, the integrated leaf-growth variable can be simplified to a limited set of underlying variables to be measured for comparative analyses of leaf growth or modelling purposes.