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| Web URL(s): | http://www.bioone.org/bioone/?request=get-document&issn=0043-1745&volume=048&issue=03&page=0319
Last checked: 11/2005
Access conditions: Item is within a limited access website |
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| Publication Type:
| Refereed |
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| Author(s): | Jansen, Carin;
Schuphan, Ingolf;
Schmidt, Burkhard |
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| Author Affiliation: | Department of Biology V (Ecology/Ecotoxicology/Ecochemistry), Technical University of Aachen, Aachen, Germany |
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| Title: | Glufosinate metabolism in excised shoots and leaves of twenty plant species |
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| Section: | Physiology, chemistry, and biochemistry
Other records with the "Physiology, chemistry, and biochemistry" Section
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| Source: | Weed Science. Vol. 48, No. 3, May/June 2000, p. 319-326. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Glufosinate; Metabolism; Shoots; Carbon-14; HPLC; Leaves; Herbicides; Chromatography; Metabolites; Absorption; Radioactive labeling; Mode of action; Application rates; Herbicide evaluation; Decontamination; Herbicide resistance
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| Abstract/Contents: | "The metabolism of the herbicide ¹⁴C-glufosinate (GA) was studied in excise shoots and leaves of 20 weed and nonweed species; GA was fed through the xylem. After 24 or 48 h of incubation, the plant material was examined for phytotoxic symptoms, analyzed by autoradiography, and extracted. The extract was cleaned up and analyzed by high-perfomance liquid chromatography. GA and its metabolites were identified by cochromatography with authentic ¹⁴C-labelled reference compounds. ¹⁴C-GA was rapidly absorbed by the excised plant parts. Most of the radioactivity (91.3 to 99.7%)in the shoots and leaves was extractable. The main metabolite observed with all species was 3-(hydroxymethylphosphinyl)propionic acid (MPP); lower amounts of 2-hydroxy-4-(hydroxymethylphosphinyl)butanoic acid (MHB) were also found in 14 species. Metabolic rates of GA varied considerably ranging between 13.1 and 2,836.5 ng GA h⁻¹ mg⁻¹ protein. The species with the highest rates of metabolism of GA were Galium verum (2, 836.5 ng GA h⁻¹ mg⁻¹ protein), Lythrum hyssopifolia (846.0 ng GA h⁻¹ mg⁻¹ protein) and Digitalis purpurea (494.8 ng GA h⁻¹ mg⁻¹ protein). The mean value across all species was 275.9 ng GA h⁻¹ mg⁻¹ protein." |
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| Language: | English |
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| References: | 23 |
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| Note: | Pictures, b/w
Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jansen, C., I. Schuphan, and B. Schmidt. 2000. Glufosinate metabolism in excised shoots and leaves of twenty plant species. Weed Sci. 48(3):p. 319-326. |
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| Web URL(s):
http://www.bioone.org/bioone/?request=get-document&issn=0043-1745&volume=048&issue=03&page=0319
Last checked: 11/2005
Access conditions: Item is within a limited access website |
| 
MSU catalog number: SB 610 .W38 |
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