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Night-Time Transpiration - Favouring Growth?

机译:夜间蒸腾 - 有利于增长?

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摘要

Plants grow and transpire water during the day and night. Recent work highlights the idea that night-time transpirational water loss is a consequence of allowing respiratory CO2 to escape at sufficiently high rates through stomata. Respiration fuels night-time leaf expansion and requires carbohydrates produced during the day. As carbohydrate availability and growth are under the control of the plants' internal clock, so is night-time transpiration. The cost of night-time transpiration is that water is lost without carbon being gained, the benefit is a higher efficiency of taken up water for use in leaf expansion. This could provide a stress acclimation process.
机译:植物在白天和夜晚生长和延发水。 最近的工作突出了夜间透析水分损失的想法,这使得呼吸二氧化碳通过气孔足够高的速率逃逸。 呼吸燃料夜间叶膨胀,并需要白天生产的碳水化合物。 随着碳水化合物的可用性和增长在植物内部时钟的控制下,夜间蒸腾也是如此。 夜间蒸腾的成本是在没有碳的情况下丢失水,该益处是叶片扩张中使用的较高效率。 这可以提供压力适应过程。

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