| Full text | |
| Author(s): |
Marucci, Rosangela Cristina
[1]
;
Freitas, Larah Martins
[1]
;
Santos-Rasera, Joyce Ribeiro
[2]
;
Alves, Dejane Santos
[3]
;
Carvalho, Geraldo Andrade
[1]
;
Pereira de Carvalho, Hudson Wallace
[2]
Total Authors: 6
|
| Affiliation: | [1] Univ Fed Lavras, Dept Entomol, BR-37200000 Lavras, MG - Brazil
[2] Univ Sao Paulo, Ctr Nucl Energy Agr, BR-13400970 Piracicaba, SP - Brazil
[3] Univ Tecnol Fed Parana, COBIO, BR-85892000 Santa Helena, Parana - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | FLORIDA ENTOMOLOGIST; v. 102, n. 3, p. 555-561, SEP 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
In the last 20 yr, the production of nanoparticles has increased, although their effects on organisms and the environment are not well understood. This research evaluated the transfer of cerium oxide (nano-CeO2) nanoparticles in a terrestrial trophic chain formed by the producer Nicandra physaloides (L.) Gaertn. (Solanaceae) and a primary consumer, green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae), a generalist insect pest. Nicandra physaloides plants were treated by foliar spraying with nano-CeO2 (25 nm) aqueous suspensions (1, 10, 100, and 1,000 mg Ce L-1) and fed to the green peach aphid (M. persicae). The survival and fecundity of insects were evaluated. Microprobe X-ray fluorescence spectroscopy was used to verify the presence of Ce in plants and insects. It was possible to verify Ce in the oral cavity and digestive system of aphids fed on leaves previously treated with nano-CeO2 (1,000 mg CeL-1). Despite the transfer of Ce in this terrestrial trophic chain, the nanoparticles did not reduce survival and fecundity of aphids. (AU) | |
| FAPESP's process: | 15/05942-0 - Shedding light on the metabolism of nanomaterials absorbed by plants with X-ray and vibrational spectroscopy |
| Grantee: | Hudson Wallace Pereira de Carvalho |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 15/19121-8 - Multi-User Equipment approved in grant 2015/05942-0: micro X-Ray Fluorescence system |
| Grantee: | Hudson Wallace Pereira de Carvalho |
| Support Opportunities: | Multi-user Equipment Program |