| Potato (Solanum tuberosum) greenhouse tuber production as an assay for asexual reproduction effects from herbicides. | |
| | |
MedLine Citation:
|
PMID: 20821425 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The present study determined whether young potato plants can be used as an assay to indicate potential effects of pesticides on asexual reproduction. Solanum tuberosum (Russet Burbank) plants were grown from seed pieces in a mineral soil in pots under greenhouse conditions. Plants were treated with herbicides (cloransulam, dicamba, glyphosate, imazapyr, primsulfuron, sulfometuron, or tribenuron) at simulated drift levels [</=0.1 x standard field application rates (f.a.r.)], approximately 14 d after emergence (DAE). Plant height was measured approximately 14 d after treatment (DAT). Production of small tubers and shoot dry weight were determined at approximately 28 DAT. Imazapyr, sulfometuron, and tribenuron caused significant reductions in tuber fresh weight, with the effective concentrations producing a 25% potato tuber fresh weight (EC25) of 0.00038, 0.0016, and 0.0021 x f.a.r. of 1,124, 52, and 9 g active ingredient hectare(-1) (g a.i. HA(-1)), respectively. Primisulfuron, dicamba, and cloransulam also significantly reduced tuber fresh weight, but with higher EC25 values of 0.011, 0.07, and 0.010 to 0.2 x f.a.r. of 40, 558, and 18 g a.i. HA(-1), respectively. Glyphosate had little effect on tuber fresh weight, with a significant reduction in only one experiment. Sulfometuron reduced tuber fresh weight at an EC25 value lower than the EC25 values for shoot dry weight or plant height. For other herbicides, the reduction in tuber fresh weight occurred within the range of EC25 values for other responses. Although additional experiments are required to develop further a phytotoxicity test, these results indicated that tuber production in young potato plants (harvested approximately 42 DAE) may be an effective assay for below-ground asexual reproductive responses to herbicides, especially acetolactate synthase inhibitors. |
| | |
Authors:
|
David Olszyk; Thomas Pfleeger; E Henry Lee; Milton Plocher |
Related Documents
:
|
15757705 - Sediments, nutrients and pesticide residues in event flow conditions in streams of the ... 15657805 - Toxicity assessment of pesticide mixtures typical of the sacramento-san joaquin delta u... 2248255 - Current trends and new directions in crop protection. 22791185 - From selection to complementarity: the shift along the abiotic stress gradient in a con... 2870115 - Studies on microbial contamination of reused disposable plastic insulin syringes. 23019815 - Experimental study on removals of so2 and no(x) using adsorption of activated carbon/mi... |
Publication Detail:
|
Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
|
Title: Environmental toxicology and chemistry / SETAC Volume: 29 ISSN: 0730-7268 ISO Abbreviation: Environ. Toxicol. Chem. Publication Date: 2010 Jan |
Date Detail:
|
Created Date: 2010-09-07 Completed Date: 2010-09-23 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8308958 Medline TA: Environ Toxicol Chem Country: United States |
Other Details:
|
Languages: eng Pagination: 111-21 Citation Subset: IM |
Affiliation:
|
U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Western Ecology Division, 200 SW 35th Street, Corvallis, Oregon 97333, USA. olszyk.david@epa.gov |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Herbicides
/
toxicity* Plant Tubers / drug effects*, physiology Reproduction / drug effects Solanum tuberosum / drug effects*, physiology |
| Chemical | |
Reg. No./Substance:
|
0/Herbicides |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Polychlorinated biphenyls, dioxins, furans, and organochlorine pesticides in belted kingfisher eggs ...
Next Document: Acute toxicity of a mixture of copper and single-walled carbon nanotubes to Daphnia magna.