Abstract
Two agronomic plant species were evaluated for the phytotoxicity of multi-walled carbon nanotubes (CNTs) using germination and seedling growth of Brassica juncea and Phaseolus mungo. Both B. juncea and P. mungo seeds showed 100% germination with the application of CNTs, which indicated their non-hazardous nature for the germination of the seeds. As the B. juncea seed was grown with CNTs at 10 μg/ml, 20 μg/ml, and 40 μg/ml, the enhancement of root growth was evidenced up to 138%, 202%, and 135%, respectively, compared to the control. In the case of B. juncea, the heights of the shoot and root were not affected at all by the studied CNTs' concentrations; however, phytotoxicity was evidenced at 40 μg/ml CNTs by optical microscopy of the hairy root system, since a severe reduction in both the number of root hairs and their length was observed.
Original language | English |
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Pages (from-to) | 157-160 |
Number of pages | 4 |
Journal | Journal of Nanoelectronics and Optoelectronics |
Volume | 5 |
Issue number | 2 |
DOIs | |
State | Published - Aug 2010 |
Keywords
- Brassica juncea
- Carbon nanotubes
- Germination
- Phaseolus mungo
- Phytotoxicity