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Enhancement of plant leaf transpiration with effective use of surface acoustic waves: effect of wave frequency

机译：有效利用表面声波的植物叶蒸腾的增强：波频的影响

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摘要

Water transport in vascular plants provides remarkable opportunities for various engineering applications due to its highly efficient and powerless transportability. Several previous studies were conducted to regulate the biological responses of plants using noninvasive audible or ultrasound waves. However, the control mechanism of acoustic stimuli applied to plants has not been investigated yet. Thus, the practical application of these stimuli to real plants still exhibits technological limitations. This study experimentally investigated the effects of surface acoustic wave (SAW) frequency on plant transpiration to understand the acoustic-activated leaf transpiration and utilize the advantages of SAW. We captured consecutive images of the enhanced water transport in the test plant (Epipremnum aureum) by SAW at three different frequencies (10, 15, and 20 MHz). The dye solution at 15 MHz SAW presented the highest intensity value after 40min of SAW stimulation. The excitation areas for 15 and 20 MHz SAWs were decreased to 42.3% and 22.6%, respectively, compared with that of 10 MHz SAW. The transpiration rates were directly measured to compare water transport enhancement quantitatively when different SAW frequencies were applied to the same plant leaves. The water transport in the leaves was maximized at 15 MHz SAW, regardless of excitation area.
机译：由于其高效无能为力，血管厂的水运输为各种工程应用提供了显着的机会。进行了几项研究以调节使用非侵入性声音或超声波的植物的生物反应。然而，尚未研究应用于植物的声学刺激的控制机制。因此，这些刺激对现实工厂的实际应用仍然表现出技术限制。本研究通过实验研究了表面声波（SAW）频率对植物蒸腾的影响，了解声学活性的叶片蒸腾并利用锯的优点。在三种不同的频率（10,15和20MHz）中，我们捕获了试验厂增强的水运输（EpipRemnum AUREUM）的连续图像。在15MHz的染料溶液溶液呈现出40分钟后刺激后的最高强度值。与10MHz锯相比，15和20MHz锯的激发区域分别降至42.3％和22.6％。直接测量蒸腾速率，以定量在不同的SAW频率施加到同一植物叶子上时定量地比较水运输增强。无论激动区域如何，叶子中的水输送最大化为15 MHz。

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  • 来源
    《RSC Advances》 |2018年第27期|共8页
  • 作者

    Lee Sang Joon; Kim Jeongju; Kim Hyejeong; Ryu Jeongeun;

  • 作者单位

    Pohang Univ Sci &

    Technol Dept Mech Engn Pohang 37673 South Korea;

    Pohang Univ Sci &

    Technol Dept Mech Engn Pohang 37673 South Korea;

    Pohang Univ Sci &

    Technol Dept Mech Engn Pohang 37673 South Korea;

    Pohang Univ Sci &

    Technol Dept Mech Engn Pohang 37673 South Korea;

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  • 正文语种 eng
  • 中图分类 化学;
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