Mesoporous silica nanoparticles enhance seedling growth and photosynthesis in wheat and lupin

Sun, Dequan, Hussain, Hashmath I, Yi, Zhifeng, Rookes, James E, Kong, Lingxue and Cahill, David M 2016, Mesoporous silica nanoparticles enhance seedling growth and photosynthesis in wheat and lupin, Chemosphere, vol. 152, pp. 81-91, doi: 10.1016/j.chemosphere.2016.02.096.

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Title Mesoporous silica nanoparticles enhance seedling growth and photosynthesis in wheat and lupin
Author(s) Sun, Dequan
Hussain, Hashmath I
Yi, ZhifengORCID iD for Yi, Zhifeng
Rookes, James EORCID iD for Rookes, James E
Kong, LingxueORCID iD for Kong, Lingxue
Cahill, David MORCID iD for Cahill, David M
Journal name Chemosphere
Volume number 152
Start page 81
End page 91
Total pages 11
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-06
ISSN 1879-1298
Keyword(s) Mesoporous silica nanoparticles
Seedling growth
Oxidative stress
Photosynthetic activity
Nanoparticle distribution
Summary The application of mesoporous silica nanoparticles (MSNs) as a smart delivery system to agricultural crops is gaining attention but the release of nanoparticles into the environment may pose a potential threat to biological systems. We investigated the effects of MSNs on the growth and development of wheat and lupin plants grown under controlled conditions. We report a dramatic increase in the growth of wheat and lupin plants exposed to MSNs. We also found that, in leaves, MSNs localised to chloroplasts and that photosynthetic activity was significantly increased. In addition, absorption and cellular distribution of MSNs by the two plant species following root uptake were observed using scanning electron microscopy equipped with energy dispersive spectroscopy (SEM-EDS). Following uptake of MSNs at 500 and 1000 mg L(-1), there was enhancement of seed germination, increased plant biomass, total protein and chlorophyll content. Treatment of both species with MSNs at the highest concentration (2000 mg L(-1)) did not result in oxidative stress or cell membrane damage. These findings show that MSNs can be used as novel delivery systems in plants and that over the range of concentrations tested, MSNs do not have any negative impacts on plant growth or development.
Language eng
DOI 10.1016/j.chemosphere.2016.02.096
Field of Research 070101 Agricultural Land Management
060705 Plant Physiology
Socio Economic Objective 820505 Lupins
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
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