Incorporating pressure–volume traits into the leaf economics spectrum,Ecology Letters

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Incorporating pressure–volume traits into the leaf economics spectrum
Ecology Letters ( IF 7.6 ) Pub Date : 2023-02-07 , DOI: 10.1111/ele.14176
Miquel Nadal _{1,

2} , María J Clemente-Moreno ₂ , Alicia V Perera-Castro _{2,

3} , Margalida Roig-Oliver ₂ , Yusuke Onoda ₄ , Javier Gulías ₂ , Jaume Flexas ₂

Affiliation

In recent years, attempts have been made in linking pressure–volume parameters and the leaf economics spectrum to expand our knowledge of the interrelationships among leaf traits. We provide theoretical and empirical evidence for the coordination of the turgor loss point and associated traits with net CO₂ assimilation (A_n) and leaf mass per area (LMA). We measured gas exchange, pressure–volume curves and leaf structure in 45 ferns and angiosperms, and explored the anatomical and chemical basis of the key traits. We propose that the coordination observed between mass-based A_n, capacitance and the turgor loss point (π_tlp) emerges from their shared link with leaf density (one of the components of LMA) and, specially, leaf saturated water content (LSWC), which in turn relates to cell size and nitrogen and carbon content. Thus, considering the components of LMA and LSWC in ecophysiological studies can provide a broader perspective on leaf structure and function.

中文翻译：

将压力-体积特性纳入叶经济学范围

近年来，人们尝试将压力-体积参数与叶片经济学谱联系起来，以扩展我们对叶片性状之间相互关系的了解。我们为膨胀损失点和相关性状与净 CO ₂同化 ( A _n ) 和单位面积叶质量 (LMA) 的协调提供了理论和经验证据。我们测量了 45 种蕨类植物和被子植物的气体交换、压力-体积曲线和叶片结构，并探索了关键性状的解剖学和化学基础。我们建议在基于质量的A _n、电容和膨胀损失点 ( π _tlp) 从它们与叶密度（LMA 的组成部分之一），特别是叶饱和水含量 (LSWC) 的共同联系中得出，后者又与细胞大小以及氮和碳含量有关。因此，在生态生理学研究中考虑 LMA 和 LSWC 的成分可以为叶片结构和功能提供更广阔的视角。

更新日期：2023-02-07

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