Pizarro, H.; Vera, M.S.; Vinocur, A.; Pérez, G.; Ferraro, M.; Menéndez Helman, R.J.; dos Santos Afonso, M. "Glyphosate input modifies microbial community structure in clear and turbid freshwater systems" (2016) Environmental Science and Pollution Research. 23(6):5143-5153
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Since it was commercially introduced in 1974, glyphosate has been one of the most commonly used herbicides in agriculture worldwide, and there is growing concern about its adverse effects on the environment. Assuming that glyphosate may increase the organic turbidity of water bodies, we evaluated the effect of a single application of 2.4 ± 0.1 mg l−1 of glyphosate (technical grade) on freshwater bacterioplankton and phytoplankton (pico, micro, and nanophytoplankton) and on the physical and chemical properties of the water. We used outdoor experimental mesocosms under clear and oligotrophic (phytoplanktonic chlorophyll a = 2.04 μg l−1; turbidity = 2.0 NTU) and organic turbid and eutrophic (phytoplanktonic chlorophyll a = 50.3 μg l−1; turbidity = 16.0 NTU) scenarios. Samplings were conducted at the beginning of the experiment and at 1, 8, 19, and 33 days after glyphosate addition. For both typologies, the herbicide affected the abiotic water properties (with a marked increase in total phosphorus), but it did not affect the structure of micro and nanophytoplankton. In clear waters, glyphosate treatment induced a trend toward higher bacteria and picoeukaryotes abundances, while there was a 2 to 2.5-fold increase in picocyanobacteria number. In turbid waters, without picoeukaryotes at the beginning of the experiment, glyphosate decreased bacteria abundance but increased the number of picocyanobacteria, suggesting a direct favorable effect. Moreover, our results show that the impact of the herbicide was observed in microorganisms from both oligo and eutrophic conditions, indicating that the impact would be independent of the trophic status of the water body. © 2015, Springer-Verlag Berlin Heidelberg.


Documento: Artículo
Título:Glyphosate input modifies microbial community structure in clear and turbid freshwater systems
Autor:Pizarro, H.; Vera, M.S.; Vinocur, A.; Pérez, G.; Ferraro, M.; Menéndez Helman, R.J.; dos Santos Afonso, M.
Filiación:Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IEGEBA-CONICET, Buenos Aires, Argentina
Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
INIBIOMA, CRUB Comahue, CONICET, Bariloche, Argentina
Instituto de Investigaciones Biotecnológicas, Instituto Tecnológico de Chascomús (IIB-INTECH), Buenos Aires, Argentina
Departamento de Química Inorgánica, INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Freshwater ecosystems; Herbicide; Mesocosms; Microbial structure; Organic turbidity; Picocyanobacteria; Trophic status; abundance; community structure; cyanobacterium; freshwater; freshwater ecosystem; glyphosate; mesocosm; microbial community; pesticide application; phytoplankton; trophic status; turbidity; water chemistry; Bacteria (microorganisms); chlorophyll; chlorophyll a; fresh water; glycine; glyphosate; herbicide; water pollutant; analogs and derivatives; bacterium; chemistry; drug effects; microbiology; pharmacology; phytoplankton; water pollutant; Bacteria; Chlorophyll; Fresh Water; Glycine; Herbicides; Phytoplankton; Water Microbiology; Water Pollutants, Chemical
Página de inicio:5143
Página de fin:5153
Título revista:Environmental Science and Pollution Research
Título revista abreviado:Environ. Sci. Pollut. Res.
CAS:chlorophyll, 1406-65-1, 15611-43-5; chlorophyll a, 479-61-8; glycine, 56-40-6, 6000-43-7, 6000-44-8; glyphosate, 1071-83-6; Chlorophyll; chlorophyll a; Glycine; glyphosate; Herbicides; Water Pollutants, Chemical


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---------- APA ----------
Pizarro, H., Vera, M.S., Vinocur, A., Pérez, G., Ferraro, M., Menéndez Helman, R.J. & dos Santos Afonso, M. (2016) . Glyphosate input modifies microbial community structure in clear and turbid freshwater systems. Environmental Science and Pollution Research, 23(6), 5143-5153.
---------- CHICAGO ----------
Pizarro, H., Vera, M.S., Vinocur, A., Pérez, G., Ferraro, M., Menéndez Helman, R.J., et al. "Glyphosate input modifies microbial community structure in clear and turbid freshwater systems" . Environmental Science and Pollution Research 23, no. 6 (2016) : 5143-5153.
---------- MLA ----------
Pizarro, H., Vera, M.S., Vinocur, A., Pérez, G., Ferraro, M., Menéndez Helman, R.J., et al. "Glyphosate input modifies microbial community structure in clear and turbid freshwater systems" . Environmental Science and Pollution Research, vol. 23, no. 6, 2016, pp. 5143-5153.
---------- VANCOUVER ----------
Pizarro, H., Vera, M.S., Vinocur, A., Pérez, G., Ferraro, M., Menéndez Helman, R.J., et al. Glyphosate input modifies microbial community structure in clear and turbid freshwater systems. Environ. Sci. Pollut. Res. 2016;23(6):5143-5153.