Arsenic toxicity in the freshwater microalga Euglena gracilis

Metals and metalloids may be toxic to algae and can generate reactive oxygen species, leading to oxidative stress, which impairs antioxidant defenses and produces oxidation of essential molecules. As a consequence of the development of water-dependent activities such as mining, industry, and agricul...

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Detalles Bibliográficos
Autores principales:	Nannavecchia, P., Conforti, V., Juárez, Á., Ríos De Molina, M.D.C., et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM)
Formato:	CONF
Materias:	Algae Sodium Toxicity Water Anti-oxidant response Antioxidant defense Arsenic toxicity Contaminated environment Euglena gracilis Metals and metalloids Oxidative damage Reactive oxygen species Arsenic
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_97811380_v_n_p269_Nannavecchia
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_97811380_v_n_p269_Nannavecchia
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spelling	todo:paper_97811380_v_n_p269_Nannavecchia2023-10-03T16:42:58Z Arsenic toxicity in the freshwater microalga Euglena gracilis Nannavecchia, P. Conforti, V. Juárez, Á. Ríos De Molina, M.D.C. et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM) Algae Sodium Toxicity Water Anti-oxidant response Antioxidant defense Arsenic toxicity Contaminated environment Euglena gracilis Metals and metalloids Oxidative damage Reactive oxygen species Arsenic Metals and metalloids may be toxic to algae and can generate reactive oxygen species, leading to oxidative stress, which impairs antioxidant defenses and produces oxidation of essential molecules. As a consequence of the development of water-dependent activities such as mining, industry, and agriculture, arsenic levels in aquatic ecosystems have been increasing. The microalga Euglena gracilis is one of the few planktonic microorganisms that grow in highly contaminated environments with arsenic, such as in mining tailings. The toxicity of sodium arsenite in two strains of the freshwater microalga E. gracilis was studied by comparing culture growth and by measuring some indicators of the antioxidant response and oxidative damage. We show evidence for the two E. gracilis strains that the toxicity response to sodium arsenite involves oxidative stress processes. © 2014 Taylor & Francis Group. Fil:Nannavecchia, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Conforti, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Juárez, Á. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ríos De Molina, M.D.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_97811380_v_n_p269_Nannavecchia
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Algae Sodium Toxicity Water Anti-oxidant response Antioxidant defense Arsenic toxicity Contaminated environment Euglena gracilis Metals and metalloids Oxidative damage Reactive oxygen species Arsenic
spellingShingle	Algae Sodium Toxicity Water Anti-oxidant response Antioxidant defense Arsenic toxicity Contaminated environment Euglena gracilis Metals and metalloids Oxidative damage Reactive oxygen species Arsenic Nannavecchia, P. Conforti, V. Juárez, Á. Ríos De Molina, M.D.C. et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM) Arsenic toxicity in the freshwater microalga Euglena gracilis
topic_facet	Algae Sodium Toxicity Water Anti-oxidant response Antioxidant defense Arsenic toxicity Contaminated environment Euglena gracilis Metals and metalloids Oxidative damage Reactive oxygen species Arsenic
description	Metals and metalloids may be toxic to algae and can generate reactive oxygen species, leading to oxidative stress, which impairs antioxidant defenses and produces oxidation of essential molecules. As a consequence of the development of water-dependent activities such as mining, industry, and agriculture, arsenic levels in aquatic ecosystems have been increasing. The microalga Euglena gracilis is one of the few planktonic microorganisms that grow in highly contaminated environments with arsenic, such as in mining tailings. The toxicity of sodium arsenite in two strains of the freshwater microalga E. gracilis was studied by comparing culture growth and by measuring some indicators of the antioxidant response and oxidative damage. We show evidence for the two E. gracilis strains that the toxicity response to sodium arsenite involves oxidative stress processes. © 2014 Taylor & Francis Group.
format	CONF
author	Nannavecchia, P. Conforti, V. Juárez, Á. Ríos De Molina, M.D.C. et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM)
author_facet	Nannavecchia, P. Conforti, V. Juárez, Á. Ríos De Molina, M.D.C. et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM)
author_sort	Nannavecchia, P.
title	Arsenic toxicity in the freshwater microalga Euglena gracilis
title_short	Arsenic toxicity in the freshwater microalga Euglena gracilis
title_full	Arsenic toxicity in the freshwater microalga Euglena gracilis
title_fullStr	Arsenic toxicity in the freshwater microalga Euglena gracilis
title_full_unstemmed	Arsenic toxicity in the freshwater microalga Euglena gracilis
title_sort	arsenic toxicity in the freshwater microalga euglena gracilis
url	http://hdl.handle.net/20.500.12110/paper_97811380_v_n_p269_Nannavecchia
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Arsenic toxicity in the freshwater microalga Euglena gracilis

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