Comparative effects of technical-grade and a commercial formulation of glyphosate on the pigment content of periphytic algae.
We investigated the potentially different effects of one of the most commonly used glyphosate formulations in Argentina, Glifosato Atanor(®), and the technical-grade glyphosate on the pigment content, as biomass indicators of the algal fraction in a freshwater periphytic community. A laboratory bioa...
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2014
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14320800_v93_n4_p399_Vera http://hdl.handle.net/20.500.12110/paper_14320800_v93_n4_p399_Vera |
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paper:paper_14320800_v93_n4_p399_Vera2023-06-08T16:14:08Z Comparative effects of technical-grade and a commercial formulation of glyphosate on the pigment content of periphytic algae. Vera, María Solange Juárez, Angela Beatriz Pizarro, Haydee Norma chlorophyll chlorophyll a chlorophyll b drug derivative glycine glyphosate herbicide pigment analysis of variance angiosperm Argentina article comparative study drug effect microbiology microflora time water pollutant Analysis of Variance Angiosperms Argentina Chlorophyll Glycine Herbicides Microbiota Pigments, Biological Time Factors Water Pollutants, Chemical We investigated the potentially different effects of one of the most commonly used glyphosate formulations in Argentina, Glifosato Atanor(®), and the technical-grade glyphosate on the pigment content, as biomass indicators of the algal fraction in a freshwater periphytic community. A laboratory bioassay was carried out in 250-ml beakers. Two treatments were used: technical-grade glyphosate acid and Glifosato Atanor(®) (isopropylamine salt of glyphosate 48 % w/v), which were at a concentration of 3 mg active ingredient per liter. Treatments and the control (without herbicide) were replicated in triplicate. The concentrations of chlorophyll a and b and carotenes were determined at 0, 2, 6, 10, 24, 48, 96 and 192 h after herbicide addition. A significant increase in pigment content was observed for both herbicides after a 2-day exposure. Moreover, the formulation had little or no effect compared to the active ingredient, suggesting that the additives of Glifosato Atanor(®) may not enhance glyphosate toxicity. Fil:Vera, M.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Juárez, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pizarro, H.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14320800_v93_n4_p399_Vera http://hdl.handle.net/20.500.12110/paper_14320800_v93_n4_p399_Vera |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
chlorophyll chlorophyll a chlorophyll b drug derivative glycine glyphosate herbicide pigment analysis of variance angiosperm Argentina article comparative study drug effect microbiology microflora time water pollutant Analysis of Variance Angiosperms Argentina Chlorophyll Glycine Herbicides Microbiota Pigments, Biological Time Factors Water Pollutants, Chemical |
| spellingShingle |
chlorophyll chlorophyll a chlorophyll b drug derivative glycine glyphosate herbicide pigment analysis of variance angiosperm Argentina article comparative study drug effect microbiology microflora time water pollutant Analysis of Variance Angiosperms Argentina Chlorophyll Glycine Herbicides Microbiota Pigments, Biological Time Factors Water Pollutants, Chemical Vera, María Solange Juárez, Angela Beatriz Pizarro, Haydee Norma Comparative effects of technical-grade and a commercial formulation of glyphosate on the pigment content of periphytic algae. |
| topic_facet |
chlorophyll chlorophyll a chlorophyll b drug derivative glycine glyphosate herbicide pigment analysis of variance angiosperm Argentina article comparative study drug effect microbiology microflora time water pollutant Analysis of Variance Angiosperms Argentina Chlorophyll Glycine Herbicides Microbiota Pigments, Biological Time Factors Water Pollutants, Chemical |
| description |
We investigated the potentially different effects of one of the most commonly used glyphosate formulations in Argentina, Glifosato Atanor(®), and the technical-grade glyphosate on the pigment content, as biomass indicators of the algal fraction in a freshwater periphytic community. A laboratory bioassay was carried out in 250-ml beakers. Two treatments were used: technical-grade glyphosate acid and Glifosato Atanor(®) (isopropylamine salt of glyphosate 48 % w/v), which were at a concentration of 3 mg active ingredient per liter. Treatments and the control (without herbicide) were replicated in triplicate. The concentrations of chlorophyll a and b and carotenes were determined at 0, 2, 6, 10, 24, 48, 96 and 192 h after herbicide addition. A significant increase in pigment content was observed for both herbicides after a 2-day exposure. Moreover, the formulation had little or no effect compared to the active ingredient, suggesting that the additives of Glifosato Atanor(®) may not enhance glyphosate toxicity. |
| author |
Vera, María Solange Juárez, Angela Beatriz Pizarro, Haydee Norma |
| author_facet |
Vera, María Solange Juárez, Angela Beatriz Pizarro, Haydee Norma |
| author_sort |
Vera, María Solange |
| title |
Comparative effects of technical-grade and a commercial formulation of glyphosate on the pigment content of periphytic algae. |
| title_short |
Comparative effects of technical-grade and a commercial formulation of glyphosate on the pigment content of periphytic algae. |
| title_full |
Comparative effects of technical-grade and a commercial formulation of glyphosate on the pigment content of periphytic algae. |
| title_fullStr |
Comparative effects of technical-grade and a commercial formulation of glyphosate on the pigment content of periphytic algae. |
| title_full_unstemmed |
Comparative effects of technical-grade and a commercial formulation of glyphosate on the pigment content of periphytic algae. |
| title_sort |
comparative effects of technical-grade and a commercial formulation of glyphosate on the pigment content of periphytic algae. |
| publishDate |
2014 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14320800_v93_n4_p399_Vera http://hdl.handle.net/20.500.12110/paper_14320800_v93_n4_p399_Vera |
| work_keys_str_mv |
AT veramariasolange comparativeeffectsoftechnicalgradeandacommercialformulationofglyphosateonthepigmentcontentofperiphyticalgae AT juarezangelabeatriz comparativeeffectsoftechnicalgradeandacommercialformulationofglyphosateonthepigmentcontentofperiphyticalgae AT pizarrohaydeenorma comparativeeffectsoftechnicalgradeandacommercialformulationofglyphosateonthepigmentcontentofperiphyticalgae |
| _version_ |
1768544195743580160 |