Quantitative understanding of nanoparticle uptake in watermelon plants

Frontiers in Plant Science

Christina Franke¹  Ramesh Raliya²  Pratim Biswas²  Sanmathi Chavalmane²  Nathan Reed²  Remya Nair² 

[1] Case Western Reserve University,;Washington University in St. Louis;

关键词: aerosol delivery;    internalization;    nanoparticle;    watermelon;    Biointerface;    Gold Nanoparticle;   

DOI  :  10.3389/fpls.2016.01288

来源: DOAJ

【 摘 要 】

The use of agrochemical-nutrient fertilizers has come under scrutiny in recent years due to concerns that they damage the ecosystem and endanger public health. Nanotechnology offers many possible interventions to mitigate these risks by use of nanofertilizers, nanopesticides, and nanosensors; and concurrently increases profitability, yields, and sustainability within the agricultural industry. Aerosol based foliar delivery of nanoparticles may help to enhance nanoparticle uptake and reduce environmental impacts of chemical fertilizers conventionally applied through a soil route. The purpose of this work was to study uptake, translocation, and accumulation of various gold nanostructures, 30 to 80 nm, delivered by aerosol application to a watermelon plant. Cellular uptake and accumulation of gold nanoparticles were quantified by Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS). Observations suggested that nanoparticles could be taken up by the plant through direct penetration and transport through the stomatal opening. Observed translocation of nanoparticles from leaf to root shows evidence that nanoparticles travel by the phloem transport mechanism. Accumulation and transport of nanoparticles depend on nanoparticle shape, application method, and nature of plant tissues.

【 授权许可】

Unknown