| The effect of fullerenes and functionalized fullerenes on Daphnia magna phototaxis and swimming behavior. | |
| | |
MedLine Citation:
|
PMID: 21184527 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
The effects of carbon fullerenes (C(60)) on the environment is a growing concern as the use of nanotechnology continues to increase. Previous studies have reported alteration in Daphnia magna behavior including increased hopping frequency, heart rate, and appendage movement in response to tetrahydrofuran (THF)-solubilized C(60) and increased hopping rate and appendage movement in response to THF-solubilized C(60)HxC(70)Hx exposure. The objective of the present study was to evaluate effects of water-stirred C(60) and sonicated carboxylic acid functionalized fullerenes (fC(60)) on D. magna behavior. Behavioral endpoints are important because changes in behavior can influence predator avoidance behaviors, alter predation risk, and potentially lead to population-level effects in D. magna. To evaluate the potential effect of fullerenes on phototactic behavior, D. magna were exposed to 545.4 µg/L of C(60) and 545.6 µg/L fC(60), and vertical position was monitored. Daphnia magna were also exposed to 545.4 µg/L of C(60), 545.6 µg/L fC(60), and 829.3 µg/L fC(60), and swimming movements were recorded. Fullerenes altered the vertical migration response of D. magna to the addition of food, but D. magna vertical position response to predator cues was similar for fullerenes and controls. Additionally, D. magna reduced swimming speed when exposed to C(60), but other components of D. magna swimming behavior were not affected. This research supports previous findings and suggests that C(60) may influence D. magna behavior and highlights the need for further research on sublethal behavioral modifications in aquatic organisms in response to nanomaterials. © 2010 SETAC. |
| | |
Authors:
|
Kathryn A Brausch; Todd A Anderson; Philip N Smith; Jonathan D Maul |
Related Documents
:
|
10573887 - Quantifying the distortion products generated by amplitude-modulated noise. 18839087 - Wide-field and two-photon imaging of brain activity with voltage- and calcium-sensitive... 15244907 - Resonant patterns in noisy active media. 18532247 - Noise annoyance indicators for various industrial noise sources: results and comparisons. 16659297 - Carbon dioxide requirements for phytochrome action in photoperiodism and seed germination. 10511637 - Auditory-visual integration during multimodal object recognition in humans: a behaviora... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2010-12-23 |
Journal Detail:
|
Title: Environmental toxicology and chemistry / SETAC Volume: - ISSN: 1552-8618 ISO Abbreviation: - Publication Date: 2010 Dec |
Date Detail:
|
Created Date: 2010-12-24 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8308958 Medline TA: Environ Toxicol Chem Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Lubbock, Texas, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: An evaluation of biotic ligand models predicting acute copper toxicity to Daphnia magna in wastewate...
Next Document: Perfluorooctane sulfonic acid (PFOS) exposure increases cadmium toxicity in early life stage of zebr...