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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/7981

Title: Uptake and cellular distribution, in four plant species, of fluorescently labeled mesoporous silica nanoparticles
Authors: Sun, D
Hussain, HI
Yi, Z
Siegele, R
Cresswell, T
Kong, L
Cahill, DM
Keywords: Fluorescein
Rhodamines
Isothiocyanates
Transmission Electron Microscopy
Proton-Induced X-Ray Emission Anaylsis
Plants
Issue Date: 13-May-2014
Publisher: Springer Link
Citation: Sun, D., Hussain, H. I., Yi, Z., Siegele, R., Cresswell, T., Kong, L., Cahill, D. M. (2014). Uptake and cellular distribution, in four plant species, of fluorescently labeled mesoporous silica nanoparticles. Plant Cell Reports, 33(8), 1389-1402. doi: http://dx.doi.org/10.1007/s00299-014-1624-5
Abstract: Monodispersed mesoporous silica nanoparticles (MSNs) of optimal size and configuration were synthesized for uptake by plant organs, tissues and cells. These monodispersed nanoparticles have a size of 20 nm with interconnected pores with an approximate diameter of 2.58 nm. There were no negative effects of MSNs on seed germination or when transported to different organs of the four plant species tested in this study. Most importantly, for the first time, a combination of confocal laser scanning microscopy, transmission electron microscopy and proton-induced X-ray emission (micro-PIXE) elemental analysis allowed the location and quantification MSNs in tissues and in cellular and sub-cellular locations. Our results show that MSNs penetrated into the roots via symplastic and apoplastic pathways and then via the conducting tissues of the xylem to the aerial parts of the plants including the stems and leaves. The translocation and widescale distribution of MSNs in plants will enable them to be used as a new delivery means for the transport of different sized biomolecules into plants. © 2014, Springer-Verlag Berlin Heidelberg.
URI: http://dx.doi.org/10.1007/s00299-014-1624-5
http://apo.ansto.gov.au/dspace/handle/10238/7981
ISSN: 0721-7714
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