Effect of nanoparticles on seed germination
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Plants need to be included to develop a comprehensive toxicity profile for nanoparticles. Effects of five types of nanoparticles (multi-walled carbon nanotube, aluminum, alumina, zinc, and zinc oxide) on seed germination and root growth of six higher plant species (radish, rape, ryegrass, lettuce, corn, and cucumber) were investigated. Seed germination was not affected except for the inhibition of nanoscale zinc (nano-Zn) on ryegrass and zinc oxide (nano-ZnO) on corn at 2000 mg/L. Inhibition on root growth varied greatly among nanoparticles and plants. Suspensions of 2000 mg/L nano-Zn or nano-ZnO practically terminated root elongation of the tested plant species. Fifty percent inhibitory concentrations (IC50) of nano-Zn and nano-ZnO were estimated to be near 50 mg/L for radish, and about 20 mg/L for rape and ryegrass. The inhibition occurred during the seed incubation process rather than seed soaking stage. These results are significant in terms of use and disposal of engineered nanoparticles.
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NANOTECHNOLOGY is a branch of science that is
related to nanomaterials, which help overcome the
limitations of size. The interactions of nanomaterials with
plants have not been fully elucidated. There have been
different and often conflicting reports on the absorption,
translocation, accumulation, biotransformation, and toxicity of
nanoparticles in various plant species. The effects of silver
nanoparticles (AgNPs) are still under investigation
Hope it helps
related to nanomaterials, which help overcome the
limitations of size. The interactions of nanomaterials with
plants have not been fully elucidated. There have been
different and often conflicting reports on the absorption,
translocation, accumulation, biotransformation, and toxicity of
nanoparticles in various plant species. The effects of silver
nanoparticles (AgNPs) are still under investigation
Hope it helps
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