期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 65, 期 36, 页码 7874-7884出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.7b03014
关键词
Phaseolus vulgaris; CuO nanoparticle; germination; X-ray based spectroscopy
资金
- FAPESP Young Investigators Award [2015/05942-0]
- FAPESP Multiuser Equipment Program Grant [2015/19121-8]
- CAPES
- CNPq
Nanoparticles properties such as solubility, tunable surface charges, and singular reactivity might be explored to improve the performance of fertilizers. Nevertheless, these unique properties may also bring risks to the environment since the fate of nanopartides is poorly understood. This study investigated the impact of a range of CuO nanopartides sizes and concentrations on the germination and seedling development of Phaseolus vulgaris L. Nanopartides did not affect seed germination, but seedling weight gain was promoted by 100 mg Cu L-1 and inhibited by 1 000 mg Cu L-1 of 25 nm CuO and CuSO4. Most of the Cu taken up remained in the seed coat with Cu hotspots in the hilum. X-ray absorption spectroscopy unraveled that most of the Cu remained in its pristine form. The higher surface reactivity of the 25 nm CuO nanopartides might be responsible for its deleterious effects. The present study therefore highlights the importance of the nanoparticle structure for its physiological impacts.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据