Journal
NANOTOXICOLOGY
Volume 6, Issue 3, Pages 241-248Publisher
INFORMA HEALTHCARE
DOI: 10.3109/17435390.2011.570462
Keywords
Garlic (Allium sativum L.); ZnO nanoparticles; root growth; mitotic index; chromosomal abnormalities
Categories
Funding
- National Natural Science Foundation of China [11074030]
Ask authors/readers for more resources
The effects of zinc oxide nanoparticles (ZnO NPs) on the root growth, root apical meristem mitosis and mitotic aberrations of garlic (Allium sativum L.) were investigated. ZnO NPs caused a concentration-dependent inhibition of root length. When treated with 50 mg/L ZnO NPs for 24 h, the root growth of garlic was completely blocked. The 50% inhibitory concentration (IC50) was estimated to be 15 mg/L. The mitosis index was also decreased in a concentration- and time-dependent manner. ZnO NPs also induced several kinds of mitotic aberrations, mainly consisted of chromosome stickiness, bridges, breakages and laggings. The total percentage of abnormal cells increased with the increase of ZnO NPs concentration and the prolongation of treatment time. The investigation provided new information for the possible genotoxic effects of ZnO NPs on plants.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available