Observation of yttrium oxide nanoparticles in cabbage (Brassica oleracea) through dual energy K-edge subtraction imaging
- Texas A & M Univ., College Station, TX (United States). Materials Science and Engineering
- Texas A & M Univ., College Station, TX (United States). Mechanical Engineering
- California State Univ., Fresno, CA (United States). Dept. of Plant Science
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
- Texas A & M Univ., College Station, TX (United States). Materials Science and Engineering, Mechanical Engineering
Background: The potential transfer of engineered nanoparticles (ENPs) from plants into the food chain has raised widespread concerns. In order to investigate the effects of ENPs on plants, young cabbage plants (Brassica oleracea) were exposed to a hydroponic system containing yttrium oxide (yttria) ENPs. The objective of this study was to reveal the impacts of NPs on plants by using K-edge subtraction imaging technique. Results: Using synchrotron dual-e nergy X-ray micro-tomography with K-edge subtraction technique, we studied the uptake, accumulation, distribution and concentration mapping of yttria ENPs in cabbage plants. It was found that yttria ENPs were uptaken by the cabbage roots but did not effectively transferred and mobilized through the cabbage stem and leaves. This could be due to the accumulation of yttria ENPs blocked at primary-lateral-root junction. Instead, non-yttria minerals were found in the xylem vessels of roots and stem. Conclusions: Synchrotron dual-energy X-ray micro-tomography is an effective method to observe yttria NPs inside the cabbage plants in both whole body and microscale level. Furthermore, the blockage of a plant's roots by nanoparticles is likely the first and potentially fatal environmental effect of such type of nanoparticles.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1379247
- Journal Information:
- Journal of Nanobiotechnology, Vol. 14, Issue 1; ISSN 1477-3155
- Publisher:
- BioMed CentralCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
The engineered nanoparticles in food chain: potential toxicity and effects
|
journal | October 2019 |
Responses of seed germination and shoot metabolic profiles of maize ( Zea mays L.) to Y 2 O 3 nanoparticle stress
|
journal | January 2019 |
High efficiency upconversion nanophosphors for high-contrast bioimaging
|
journal | November 2016 |
Erratum to: Observation of yttrium oxide nanoparticles in cabbage (Brassica oleracea) through dual energy K-edge subtraction imaging
|
journal | April 2016 |
Similar Records
Identification and validation of heavy metal and radionuclide hyperaccumulating terrestrial plant species. Quarterly progress report, July 1, 1996--September 30, 1996
Pesticide effects on the plant cuticle. III. EPTC effects on the qualitative composition of Brassica oleracea L. leaf cuticle