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Background and aims <p>A nano-silica/polymer composite (NSPC) was developed as an environmentally friendly agent and applied as a sustainable sand-fixing material. This study aimed to investigate the effects of the NSPC curing agent on enhancing the growth of plants in sandy soil and the role of silicon (Si) in&#xa0;plant metabolism.</p> Methods <p>Four different grasses (<i>Poa&#xa0;pratensis</i>, <i>Festuca arundinacea</i>, <i>F.&#xa0;rubra</i> and <i>Lolium perenne</i>) were grown in a monoculture pot experiment in a controlled growth chamber at 3&#xa0;°C with a 12&#xa0;h photoperiod. After the addition of NSPC to sandy soil, grass seeds were allowed to grow for 60&#xa0;days. The changes in the total chlorophyll (Chl a + b) and carotenoid (Car) contents and the amount of Si, defined&#xa0;as&#xa0;the total&#xa0;silica, in grasses at&#xa0;different growth stages were determined. Seedling growth was measured manually by using measuring tape or handheld instruments such as Vernier callipers. The uptake and translocation of silica&#xa0;nanoparticles in the grass plants were investigated by transmission electron microscopy.</p> Results <p>The results revealed that, compared with the control, NSPC treatment positively affected the seedling growth and Chl and&#xa0;Car contents of the grass. Furthermore, NSPC significantly promoted&#xa0;photosynthesis&#xa0;and increased the Si content of&#xa0;grass in sandy soil by facilitating the uptake of silica nanoparticles into cells.</p> Conclusion <p>NSPC application to sandy soil improved the morphophysiological and biochemical responses of grass plants, leading to improved grass yield potential. This effect was attributed to the increased photosynthetic efficiency mediated by the cellular uptake of silica&#xa0;nanoparticles.</p> Graphical Abstract <p></p>

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Nano-silica/polymer composites increase the growth and development of Poa pratensis, Festuca arundinacea, F. rubra and Lolium perenne in sandy soil by facilitating the uptake of silica nanoparticles into cells

  • 期刊论文

  • 发表日期：

    2025年2月24日

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  • Jinke Yuan,
  • Zuan Pei,
  • Xiaohong Hu,
  • Sheng Wang,
  • Xipu Tian

摘要

Background and aims

A nano-silica/polymer composite (NSPC) was developed as an environmentally friendly agent and applied as a sustainable sand-fixing material. This study aimed to investigate the effects of the NSPC curing agent on enhancing the growth of plants in sandy soil and the role of silicon (Si) in plant metabolism.

Methods

Four different grasses (Poa pratensis, Festuca arundinacea, F. rubra and Lolium perenne) were grown in a monoculture pot experiment in a controlled growth chamber at 3 °C with a 12 h photoperiod. After the addition of NSPC to sandy soil, grass seeds were allowed to grow for 60 days. The changes in the total chlorophyll (Chl a + b) and carotenoid (Car) contents and the amount of Si, defined as the total silica, in grasses at different growth stages were determined. Seedling growth was measured manually by using measuring tape or handheld instruments such as Vernier callipers. The uptake and translocation of silica nanoparticles in the grass plants were investigated by transmission electron microscopy.

Results

The results revealed that, compared with the control, NSPC treatment positively affected the seedling growth and Chl and Car contents of the grass. Furthermore, NSPC significantly promoted photosynthesis and increased the Si content of grass in sandy soil by facilitating the uptake of silica nanoparticles into cells.

Conclusion

NSPC application to sandy soil improved the morphophysiological and biochemical responses of grass plants, leading to improved grass yield potential. This effect was attributed to the increased photosynthetic efficiency mediated by the cellular uptake of silica nanoparticles.

Graphical Abstract