C3植物叶片水分利用效率的生理形态制约。

IF 2.6 3区 生物学 Q2 ECOLOGY
AoB Plants Pub Date : 2023-07-01 DOI:10.1093/aobpla/plad047
Peter Petrík, Anja Petek-Petrik, Mohammad Mukarram, Bernhard Schuldt, Laurent J Lamarque
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引用次数: 0

摘要

气候变化导致的蒸发需求的增加将显著影响全球植物碳同化和水分损失的平衡。开发具有更高水分利用效率(WUE)的作物品种对于在预测的未来气候下调整农业战略至关重要。本文旨在总结C3植物水分利用效率最重要的叶片形态生理制约因素,并找出相关知识的空白。从WUE的碳增益方面,讨论的参数是叶肉电导、羧化效率和呼吸损失。本文讨论了影响水侧水分利用平衡的特征和参数:气孔大小和密度、气孔控制和残水损失(角质层和树皮导度)、夜间导度和叶片水力导度。此外,我们还讨论了叶片解剖和树冠结构对水分利用效率碳增益和水分损失组分的影响。在了解植物水分利用效率变异的来源方面,未来有多个可能的发展目标。我们确定剩余水分损失和呼吸碳损失是全植物水分利用效率评估中最大的知识缺口。此外,毛状体、叶片水力导度和冠层结构对植物水分利用效率的影响尚不清楚。为了更好地理解WUE动态和优化,迫切需要发展多特征方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Leaf physiological and morphological constraints of water-use efficiency in C<sub>3</sub> plants.

Leaf physiological and morphological constraints of water-use efficiency in C3 plants.

The increasing evaporative demand due to climate change will significantly affect the balance of carbon assimilation and water losses of plants worldwide. The development of crop varieties with improved water-use efficiency (WUE) will be critical for adapting agricultural strategies under predicted future climates. This review aims to summarize the most important leaf morpho-physiological constraints of WUE in C3 plants and identify gaps in knowledge. From the carbon gain side of the WUE, the discussed parameters are mesophyll conductance, carboxylation efficiency and respiratory losses. The traits and parameters affecting the waterside of WUE balance discussed in this review are stomatal size and density, stomatal control and residual water losses (cuticular and bark conductance), nocturnal conductance and leaf hydraulic conductance. In addition, we discussed the impact of leaf anatomy and crown architecture on both the carbon gain and water loss components of WUE. There are multiple possible targets for future development in understanding sources of WUE variability in plants. We identified residual water losses and respiratory carbon losses as the greatest knowledge gaps of whole-plant WUE assessments. Moreover, the impact of trichomes, leaf hydraulic conductance and canopy structure on plants' WUE is still not well understood. The development of a multi-trait approach is urgently needed for a better understanding of WUE dynamics and optimization.

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来源期刊
AoB Plants
AoB Plants PLANT SCIENCES-
CiteScore
4.80
自引率
0.00%
发文量
54
审稿时长
20 weeks
期刊介绍: AoB PLANTS is an open-access, online journal that has been publishing peer-reviewed articles since 2010, with an emphasis on all aspects of environmental and evolutionary plant biology. Published by Oxford University Press, this journal is dedicated to rapid publication of research articles, reviews, commentaries and short communications. The taxonomic scope of the journal spans the full gamut of vascular and non-vascular plants, as well as other taxa that impact these organisms. AoB PLANTS provides a fast-track pathway for publishing high-quality research in an open-access environment, where papers are available online to anyone, anywhere free of charge.
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