揭示水中纳米气泡的潜力：对番茄早期生长和土壤性质的影响。
Unveiling the potential of nanobubbles in water: Impacts on tomato's early growth and soil properties.
作者信息
Xue Shan, Gao Jianan, Liu Changqing, Marhaba Taha, Zhang Wen
机构信息
John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA.
School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China.
出版信息
Sci Total Environ. 2023 Dec 10;903:166499. doi: 10.1016/j.scitotenv.2023.166499. Epub 2023 Aug 25.
Nanobubbles (NBs) in water have been proven to improve plant growth and seed germination, potentially reducing both water and fertilizer consumption. To unravel the promotion mechanism of NBs on plant growth, this study investigated the characteristics of NBs in tap water and their impacts on tomato's early growth, soil chemical properties, enzymatic activity and electrochemical properties of plant roots. Oxygen NBs (ONBs) were found to increase the seed germination by 10 % and plant growth by 30 %-50 % (e.g., stem and diameter), whereas nitrogen NBs (NNBs) only had a significant promotion (7 %-34 %) on plant height. Additionally, compared to control group, irrigation with ONBs increased the peroxidase activities by 500 %-1000 % in tomato leaves, which may increase the expression of genes for peroxidase and promote cell proliferation and plant growth. Moreover, electrical impedance spectroscopy (EIS) revealed that the ONBs could reduce the interfacial impedance due to the increased active surface area and electrical conductivity of root.
水中的纳米气泡（NBs）已被证明可促进植物生长和种子萌发，有可能减少水和肥料的消耗。为了揭示纳米气泡对植物生长的促进机制，本研究调查了自来水中纳米气泡的特性及其对番茄早期生长、土壤化学性质、酶活性和植物根系电化学性质的影响。发现氧气纳米气泡（ONBs）可使种子发芽率提高10%，植物生长（如茎和直径）提高30%-50%，而氮气纳米气泡（NNBs）仅对株高有显著促进作用（7%-34%）。此外，与对照组相比，用氧气纳米气泡灌溉可使番茄叶片中的过氧化物酶活性提高500%-1000%，这可能会增加过氧化物酶基因的表达，促进细胞增殖和植物生长。此外，电阻抗谱（EIS）显示，由于根的活性表面积和电导率增加，氧气纳米气泡可降低界面阻抗。
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