Effect of chromium on the fatty acid composition of two strains of Euglena gracilis

The effect of hexavalent chromium on fatty acid composition was studied in two strains of Euglena gracilis; UTEX 753 (from the Culture Collection of Algae of Texas University, USA) and MAT (isolated from a highly polluted River). Both were grown in photoauxotrophic and photoheterotrophic conditions...

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Detalles Bibliográficos
Autores: Rocchetta, Iara, Mazzuca, Marcia, Conforti, Visitacion Teresa D., Ruiz, Laura Beatriz, Balzaretti, Vilma Teresa, Rios, Maria del Carmen
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/98722
Acceso en línea:http://hdl.handle.net/11336/98722
Access Level:acceso abierto
Palabra clave:EUGLENA GRACILIS
FATTY ACIDS
HEAVY METAL
HEXAVALENT CHROMIUM
LIPIDS
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
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network_acronym_str AR
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repository_id_str
spelling Effect of chromium on the fatty acid composition of two strains of Euglena gracilisRocchetta, IaraMazzuca, MarciaConforti, Visitacion Teresa D.Ruiz, Laura BeatrizBalzaretti, Vilma TeresaRios, Maria del CarmenEUGLENA GRACILISFATTY ACIDSHEAVY METALHEXAVALENT CHROMIUMLIPIDShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The effect of hexavalent chromium on fatty acid composition was studied in two strains of Euglena gracilis; UTEX 753 (from the Culture Collection of Algae of Texas University, USA) and MAT (isolated from a highly polluted River). Both were grown in photoauxotrophic and photoheterotrophic conditions and exposed to two metal concentrations, one below and one above IC50. The high malondialdehyde (MDA) levels (3 to 7-fold) obtained with chromium concentration above IC50, suggested the existence of metal-induced lipid peroxidation. Total lipid content increased only with concentration below IC50, whereas it was inhibited by higher metal concentration. Photoheterotrophic control strains exhibited a significantly higher proportion of saturated and polyunsaturated fatty acids. Polyunsaturated acids were most affected by chromium, especially those related to chloroplast structures. Ultra-structure studies showed clear thylakoid disorganization in all treated cells. The results indicate that hexavalent chromium affects levels of fatty acids, especially those related to photosynthetic activity.Fil: Rocchetta, Iara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; ArgentinaFil: Mazzuca, Marcia. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Comodoro. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Conforti, Visitacion Teresa D.. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; ArgentinaFil: Ruiz, Laura Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; ArgentinaFil: Balzaretti, Vilma Teresa. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Comodoro. Departamento de Química; ArgentinaFil: Rios, Maria del Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica; ArgentinaElsevier2006-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98722Rocchetta, Iara; Mazzuca, Marcia; Conforti, Visitacion Teresa D.; Ruiz, Laura Beatriz; Balzaretti, Vilma Teresa; et al.; Effect of chromium on the fatty acid composition of two strains of Euglena gracilis; Elsevier; Environmental Pollution; 141; 2; 5-2006; 353-3580269-7491CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.envpol.2005.08.035info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0269749105004392info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:23:58Zoai:ri.conicet.gov.ar:11336/98722instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982024-05-08 14:23:59.03CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of chromium on the fatty acid composition of two strains of Euglena gracilis
title Effect of chromium on the fatty acid composition of two strains of Euglena gracilis
spellingShingle Effect of chromium on the fatty acid composition of two strains of Euglena gracilis
Rocchetta, Iara
EUGLENA GRACILIS
FATTY ACIDS
HEAVY METAL
HEXAVALENT CHROMIUM
LIPIDS
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short Effect of chromium on the fatty acid composition of two strains of Euglena gracilis
title_full Effect of chromium on the fatty acid composition of two strains of Euglena gracilis
title_fullStr Effect of chromium on the fatty acid composition of two strains of Euglena gracilis
title_full_unstemmed Effect of chromium on the fatty acid composition of two strains of Euglena gracilis
title_sort Effect of chromium on the fatty acid composition of two strains of Euglena gracilis
dc.creator.none.fl_str_mv Rocchetta, Iara
Mazzuca, Marcia
Conforti, Visitacion Teresa D.
Ruiz, Laura Beatriz
Balzaretti, Vilma Teresa
Rios, Maria del Carmen
author Rocchetta, Iara
author_facet Rocchetta, Iara
Mazzuca, Marcia
Conforti, Visitacion Teresa D.
Ruiz, Laura Beatriz
Balzaretti, Vilma Teresa
Rios, Maria del Carmen
author_role author
author2 Mazzuca, Marcia
Conforti, Visitacion Teresa D.
Ruiz, Laura Beatriz
Balzaretti, Vilma Teresa
Rios, Maria del Carmen
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv EUGLENA GRACILIS
FATTY ACIDS
HEAVY METAL
HEXAVALENT CHROMIUM
LIPIDS
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic EUGLENA GRACILIS
FATTY ACIDS
HEAVY METAL
HEXAVALENT CHROMIUM
LIPIDS
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description The effect of hexavalent chromium on fatty acid composition was studied in two strains of Euglena gracilis; UTEX 753 (from the Culture Collection of Algae of Texas University, USA) and MAT (isolated from a highly polluted River). Both were grown in photoauxotrophic and photoheterotrophic conditions and exposed to two metal concentrations, one below and one above IC50. The high malondialdehyde (MDA) levels (3 to 7-fold) obtained with chromium concentration above IC50, suggested the existence of metal-induced lipid peroxidation. Total lipid content increased only with concentration below IC50, whereas it was inhibited by higher metal concentration. Photoheterotrophic control strains exhibited a significantly higher proportion of saturated and polyunsaturated fatty acids. Polyunsaturated acids were most affected by chromium, especially those related to chloroplast structures. Ultra-structure studies showed clear thylakoid disorganization in all treated cells. The results indicate that hexavalent chromium affects levels of fatty acids, especially those related to photosynthetic activity.
publishDate 2006
dc.date.none.fl_str_mv 2006-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/98722
Rocchetta, Iara; Mazzuca, Marcia; Conforti, Visitacion Teresa D.; Ruiz, Laura Beatriz; Balzaretti, Vilma Teresa; et al.; Effect of chromium on the fatty acid composition of two strains of Euglena gracilis; Elsevier; Environmental Pollution; 141; 2; 5-2006; 353-358
0269-7491
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98722
identifier_str_mv Rocchetta, Iara; Mazzuca, Marcia; Conforti, Visitacion Teresa D.; Ruiz, Laura Beatriz; Balzaretti, Vilma Teresa; et al.; Effect of chromium on the fatty acid composition of two strains of Euglena gracilis; Elsevier; Environmental Pollution; 141; 2; 5-2006; 353-358
0269-7491
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.envpol.2005.08.035
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0269749105004392
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 15.81155

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