Engineering stomata for enhanced carbon capture and water-use efficiency.
Engineering stomata for enhanced carbon capture and water-use efficiency.
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设计气孔以提高碳捕获和用水效率。
DOI：
10.1016/j.tplants.2023.06.002
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发表时间：
2023-07
影响因子：
20.5
通讯作者：
Thu Binh-Ahn Nguyen;Cécile Lefoulon;T. Nguyen;M. Blatt;William Carroll
中科院分区：
文献类型：
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作者：
Thu Binh-Ahn Nguyen;Cécile Lefoulon;T. Nguyen;M. Blatt;William Carroll
气孔促进叶片内部空气空间与大气之间的气体交换。作为平衡光合作用的二氧化碳进入和蒸腾水分损失的看门人，它们是在不断变化的全球环境中提高作物性能，特别是提高水利用效率的努力的焦点。直到最近，工程策略都集中在稳定状态下的气孔导度。这些策略受到二氧化碳和水交换的物理限制，因此水利用效率（WUE）的提高通常以碳同化为代价。对气孔速度和响应性的关注规避了这些限制，并提供了提高水分利用效率的替代方案，也有望增加田间的碳同化。
Stomatal pores facilitate gaseous exchange between the inner air spaces of the leaf and the atmosphere. As gatekeepers that balance CO2entry for photosynthesis against transpirational water loss, they are a focal point for efforts to improve crop performance, especially in the efficiency of water use, within the changing global environment. Until recently, engineering strategies had focused on stomatal conductance in the steady state. These strategies are limited by the physical constraints of CO2and water exchange such that gains in water-use efficiency (WUE) commonly come at a cost in carbon assimilation. Attention to stomatal speed and responsiveness circumvents these constraints and offers alternatives to enhancing WUE that also promise increases in carbon assimilation in the field.