Effects of glyphosate and 2,4-D mixture on freshwater phytoplankton and periphyton communities: a microcosms approach
Glyphosate (G) and 2,4-D herbicides are massively applied in agriculture worldwide and the use of their mixture is currently a very common practice. We carried out two experiments using microcosms under laboratory conditions for 7 days each. In the first experiment, we analyzed changes in species co...
| Autores principales: | , , , , , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
|
| Materias: | |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0147651317308345#! http://hdl.handle.net/20.500.12123/2208 https://doi.org/10.1016/j.ecoenv.2017.12.006 |
| _version_ | 1855483013620563968 |
|---|---|
| author | Lozano, V.L. Vinocur, Alicia Liliana Sabio y García, Carmen Alejandra Allende, L. Cristos, Diego Sebastian Rojas, Dante Emanuel Wolansky, Marcelo Javier Pizarro, H. |
| author_browse | Allende, L. Cristos, Diego Sebastian Lozano, V.L. Pizarro, H. Rojas, Dante Emanuel Sabio y García, Carmen Alejandra Vinocur, Alicia Liliana Wolansky, Marcelo Javier |
| author_facet | Lozano, V.L. Vinocur, Alicia Liliana Sabio y García, Carmen Alejandra Allende, L. Cristos, Diego Sebastian Rojas, Dante Emanuel Wolansky, Marcelo Javier Pizarro, H. |
| author_sort | Lozano, V.L. |
| collection | INTA Digital |
| description | Glyphosate (G) and 2,4-D herbicides are massively applied in agriculture worldwide and the use of their mixture is currently a very common practice. We carried out two experiments using microcosms under laboratory conditions for 7 days each. In the first experiment, we analyzed changes in species composition, abundance and chlorophyll a of phytoplankton due to 10 treatments: control; low, medium and high concentrations of G and 2,4-D; and mixtures at low, medium and high concentrations at a G:2,4-D ratio of 1:0.45. In the second experiment we studied changes on the composition of the autotrophic fraction and abundance, chlorophyll a, dry weight (DW), ash free dry weight (AFDW) and autotrophic index of periphyton developed in artificial substrata under 7 treatments considering the lowest doses that showed an effect in the previous phytoplankton experiment: control; pure G and Glifosato Atanor® (glyphosate-based formulation); pure 2,4-D and Asi Max 50® (2,4-D-based formulation); mixtures of the a.i at a G:2,4-D ratio of 1:0.45, and mixture of Glifosato Atanor® + Asi Max®. Results showed that G was more toxic than 2,4-D to the algal fraction, decreasing chlorophyll a, turbidity and algal abundances in the phytoplankton experiment. The effects of the mixture on phytoplankton were mainly additive, except for total and Staurastrum sp. live abundances where an antagonistic effect between herbicides was recorded. Periphyton showed more resistance to the herbicides as it was less affected than phytoplankton by the active ingredients and commercial formulations. The high development of Leptolyngbya sp. due to the impact of the herbicide mixture on periphyton might represent the beginning of a more conspicuous community to prevent the impact of contaminants. The study of the impacts of herbicide mixtures on freshwater systems requires the analysis of several variables to better assess the responses of key microbial communities and to predict more realistic scenarios. |
| format | Artículo |
| id | INTA2208 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA22082018-07-05T12:30:00Z Effects of glyphosate and 2,4-D mixture on freshwater phytoplankton and periphyton communities: a microcosms approach Lozano, V.L. Vinocur, Alicia Liliana Sabio y García, Carmen Alejandra Allende, L. Cristos, Diego Sebastian Rojas, Dante Emanuel Wolansky, Marcelo Javier Pizarro, H. Fitopláncton Glifosato 2,4-d Perifiton Phytoplankton Glyphosate Periphyton Ácido 2,4-diclorofenoxiacético Glyphosate (G) and 2,4-D herbicides are massively applied in agriculture worldwide and the use of their mixture is currently a very common practice. We carried out two experiments using microcosms under laboratory conditions for 7 days each. In the first experiment, we analyzed changes in species composition, abundance and chlorophyll a of phytoplankton due to 10 treatments: control; low, medium and high concentrations of G and 2,4-D; and mixtures at low, medium and high concentrations at a G:2,4-D ratio of 1:0.45. In the second experiment we studied changes on the composition of the autotrophic fraction and abundance, chlorophyll a, dry weight (DW), ash free dry weight (AFDW) and autotrophic index of periphyton developed in artificial substrata under 7 treatments considering the lowest doses that showed an effect in the previous phytoplankton experiment: control; pure G and Glifosato Atanor® (glyphosate-based formulation); pure 2,4-D and Asi Max 50® (2,4-D-based formulation); mixtures of the a.i at a G:2,4-D ratio of 1:0.45, and mixture of Glifosato Atanor® + Asi Max®. Results showed that G was more toxic than 2,4-D to the algal fraction, decreasing chlorophyll a, turbidity and algal abundances in the phytoplankton experiment. The effects of the mixture on phytoplankton were mainly additive, except for total and Staurastrum sp. live abundances where an antagonistic effect between herbicides was recorded. Periphyton showed more resistance to the herbicides as it was less affected than phytoplankton by the active ingredients and commercial formulations. The high development of Leptolyngbya sp. due to the impact of the herbicide mixture on periphyton might represent the beginning of a more conspicuous community to prevent the impact of contaminants. The study of the impacts of herbicide mixtures on freshwater systems requires the analysis of several variables to better assess the responses of key microbial communities and to predict more realistic scenarios. Instituto de Tecnología de Alimentos Fil: Lozano, V.L. Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Ecología, Genética y Evolución. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina Fil: Vinocur, Alicia Liliana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina Fil: Sabio y García, Carmen Alejandra. Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Ecología, Genética y Evolución. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina Fil: Allende, L. Universidad Nacional de General Sarmiento. Instituto del Conurbano; Argentina Fil: Cristos, Diego Sebastián. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentina Fil: Rojas, Dante Emanuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto Tecnología Alimentos; Argentina Fil: Wolansky, Marcelo Javier. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica; Argentina.Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina Fil: Pizarro, H. Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Ecología, Genética y Evolución. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina 2018-04-10T12:11:50Z 2018-04-10T12:11:50Z 2018-02 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0147651317308345#! http://hdl.handle.net/20.500.12123/2208 0147-6513 https://doi.org/10.1016/j.ecoenv.2017.12.006 eng info:eu-repo/semantics/restrictedAccess application/pdf Ecotoxicology and environmental safety 148 : 1010-1019. (February 2018) |
| spellingShingle | Fitopláncton Glifosato 2,4-d Perifiton Phytoplankton Glyphosate Periphyton Ácido 2,4-diclorofenoxiacético Lozano, V.L. Vinocur, Alicia Liliana Sabio y García, Carmen Alejandra Allende, L. Cristos, Diego Sebastian Rojas, Dante Emanuel Wolansky, Marcelo Javier Pizarro, H. Effects of glyphosate and 2,4-D mixture on freshwater phytoplankton and periphyton communities: a microcosms approach |
| title | Effects of glyphosate and 2,4-D mixture on freshwater phytoplankton and periphyton communities: a microcosms approach |
| title_full | Effects of glyphosate and 2,4-D mixture on freshwater phytoplankton and periphyton communities: a microcosms approach |
| title_fullStr | Effects of glyphosate and 2,4-D mixture on freshwater phytoplankton and periphyton communities: a microcosms approach |
| title_full_unstemmed | Effects of glyphosate and 2,4-D mixture on freshwater phytoplankton and periphyton communities: a microcosms approach |
| title_short | Effects of glyphosate and 2,4-D mixture on freshwater phytoplankton and periphyton communities: a microcosms approach |
| title_sort | effects of glyphosate and 2 4 d mixture on freshwater phytoplankton and periphyton communities a microcosms approach |
| topic | Fitopláncton Glifosato 2,4-d Perifiton Phytoplankton Glyphosate Periphyton Ácido 2,4-diclorofenoxiacético |
| url | https://www.sciencedirect.com/science/article/pii/S0147651317308345#! http://hdl.handle.net/20.500.12123/2208 https://doi.org/10.1016/j.ecoenv.2017.12.006 |
| work_keys_str_mv | AT lozanovl effectsofglyphosateand24dmixtureonfreshwaterphytoplanktonandperiphytoncommunitiesamicrocosmsapproach AT vinocuralicialiliana effectsofglyphosateand24dmixtureonfreshwaterphytoplanktonandperiphytoncommunitiesamicrocosmsapproach AT sabioygarciacarmenalejandra effectsofglyphosateand24dmixtureonfreshwaterphytoplanktonandperiphytoncommunitiesamicrocosmsapproach AT allendel effectsofglyphosateand24dmixtureonfreshwaterphytoplanktonandperiphytoncommunitiesamicrocosmsapproach AT cristosdiegosebastian effectsofglyphosateand24dmixtureonfreshwaterphytoplanktonandperiphytoncommunitiesamicrocosmsapproach AT rojasdanteemanuel effectsofglyphosateand24dmixtureonfreshwaterphytoplanktonandperiphytoncommunitiesamicrocosmsapproach AT wolanskymarcelojavier effectsofglyphosateand24dmixtureonfreshwaterphytoplanktonandperiphytoncommunitiesamicrocosmsapproach AT pizarroh effectsofglyphosateand24dmixtureonfreshwaterphytoplanktonandperiphytoncommunitiesamicrocosmsapproach |