Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal

Autores
de la Peña, Laura G.; Sabatini, Sebastian Eduardo; Rodríguez, María Cecilia
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Extracellular mucilage from cells of Dictyosphaerium pulchellum Wood 1872 was removed by controlled ultrasonication. Batches of exponentially growing cells, with and without mucilaginous capsules, were incubated during 48 hours with 50, 100, 200 and 300ug.l-1 of copper (added as copper sulfate). Free divalent cation concentration at the beggining of the experiment was estimated by MINEQL+. Both cellular yield and total chlorophyll content were negatively affected by the increment of copper concentration in the incubation media. Mucilage removal enhanced susceptibility to bleaching, while it did not modify significantly cellular density at the end of the experiment.
Fil: de la Peña, Laura G.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina
Fil: Sabatini, Sebastian Eduardo. 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 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: Rodríguez, María Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina
Materia
COPPER TOXICITY
CHLOROPHYCEAE
EXTRACELLULAR COPPER BINDING
BLEACHING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/102877
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removalde la Peña, Laura G.Sabatini, Sebastian EduardoRodríguez, María CeciliaCOPPER TOXICITYCHLOROPHYCEAEEXTRACELLULAR COPPER BINDINGBLEACHINGhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Extracellular mucilage from cells of Dictyosphaerium pulchellum Wood 1872 was removed by controlled ultrasonication. Batches of exponentially growing cells, with and without mucilaginous capsules, were incubated during 48 hours with 50, 100, 200 and 300ug.l-1 of copper (added as copper sulfate). Free divalent cation concentration at the beggining of the experiment was estimated by MINEQL+. Both cellular yield and total chlorophyll content were negatively affected by the increment of copper concentration in the incubation media. Mucilage removal enhanced susceptibility to bleaching, while it did not modify significantly cellular density at the end of the experiment.Fil: de la Peña, Laura G.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; ArgentinaFil: Sabatini, Sebastian Eduardo. 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 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; ArgentinaFil: Rodríguez, María Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; ArgentinaSchweizerbart Science Publishers2005-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/102877de la Peña, Laura G.; Sabatini, Sebastian Eduardo; Rodríguez, María Cecilia; Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal; Schweizerbart Science Publishers; Algological Studies; 115; 4-2005; 65-780342-1120CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/archiv_algolstud/detail/115/74572/Enhancement_of_copper_toxicity_in_cultures_of_Dictyosphaerium_pulchellum_Chlorophyceae_by_mucilage_removalinfo:eu-repo/semantics/altIdentifier/doi/10.1127/1864-1318/2005/0115-0065info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:31Zoai:ri.conicet.gov.ar:11336/102877instacron: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:34982025-09-29 10:09:31.351CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal
title Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal
spellingShingle Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal
de la Peña, Laura G.
COPPER TOXICITY
CHLOROPHYCEAE
EXTRACELLULAR COPPER BINDING
BLEACHING
title_short Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal
title_full Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal
title_fullStr Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal
title_full_unstemmed Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal
title_sort Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal
dc.creator.none.fl_str_mv de la Peña, Laura G.
Sabatini, Sebastian Eduardo
Rodríguez, María Cecilia
author de la Peña, Laura G.
author_facet de la Peña, Laura G.
Sabatini, Sebastian Eduardo
Rodríguez, María Cecilia
author_role author
author2 Sabatini, Sebastian Eduardo
Rodríguez, María Cecilia
author2_role author
author
dc.subject.none.fl_str_mv COPPER TOXICITY
CHLOROPHYCEAE
EXTRACELLULAR COPPER BINDING
BLEACHING
topic COPPER TOXICITY
CHLOROPHYCEAE
EXTRACELLULAR COPPER BINDING
BLEACHING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Extracellular mucilage from cells of Dictyosphaerium pulchellum Wood 1872 was removed by controlled ultrasonication. Batches of exponentially growing cells, with and without mucilaginous capsules, were incubated during 48 hours with 50, 100, 200 and 300ug.l-1 of copper (added as copper sulfate). Free divalent cation concentration at the beggining of the experiment was estimated by MINEQL+. Both cellular yield and total chlorophyll content were negatively affected by the increment of copper concentration in the incubation media. Mucilage removal enhanced susceptibility to bleaching, while it did not modify significantly cellular density at the end of the experiment.
Fil: de la Peña, Laura G.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina
Fil: Sabatini, Sebastian Eduardo. 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 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: Rodríguez, María Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina
description Extracellular mucilage from cells of Dictyosphaerium pulchellum Wood 1872 was removed by controlled ultrasonication. Batches of exponentially growing cells, with and without mucilaginous capsules, were incubated during 48 hours with 50, 100, 200 and 300ug.l-1 of copper (added as copper sulfate). Free divalent cation concentration at the beggining of the experiment was estimated by MINEQL+. Both cellular yield and total chlorophyll content were negatively affected by the increment of copper concentration in the incubation media. Mucilage removal enhanced susceptibility to bleaching, while it did not modify significantly cellular density at the end of the experiment.
publishDate 2005
dc.date.none.fl_str_mv 2005-04
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/11336/102877
de la Peña, Laura G.; Sabatini, Sebastian Eduardo; Rodríguez, María Cecilia; Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal; Schweizerbart Science Publishers; Algological Studies; 115; 4-2005; 65-78
0342-1120
CONICET Digital
CONICET
url http://hdl.handle.net/11336/102877
identifier_str_mv de la Peña, Laura G.; Sabatini, Sebastian Eduardo; Rodríguez, María Cecilia; Enhancement of copper toxicity in cultures of Dictyosphaerium pulchellum (Chlorophyceae) by mucilage removal; Schweizerbart Science Publishers; Algological Studies; 115; 4-2005; 65-78
0342-1120
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/archiv_algolstud/detail/115/74572/Enhancement_of_copper_toxicity_in_cultures_of_Dictyosphaerium_pulchellum_Chlorophyceae_by_mucilage_removal
info:eu-repo/semantics/altIdentifier/doi/10.1127/1864-1318/2005/0115-0065
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Schweizerbart Science Publishers
publisher.none.fl_str_mv Schweizerbart Science Publishers
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
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 13.070432

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