Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus
- Autores
- Castro, Camila Andrea; Vera, Mario; Donati, Edgardo Ruben; Sand, Wolfgang
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this work we have studied the attachment and colonization of pyrite surfaces by the recently isolated thermophilic archaeon Candidatus Acidianus copahuensis (from the geothermal Caviahue-Copahue system, Argentina). Cells pregrown with sulfur, iron(II) or pyrite were tested. In order to characterize the EPS glycoconjugates of this strain, fluorescent lectins were used. Concanavalin A (ConA) gave the best signal and was selected for further studies. Coupons and grains of pyrite were treated with DAPI (to stain attached cells) and TRITC-ConA (to stain polysaccharides from EPS). Pyrite surfaces were imaged by epifluorescence (EFM) and confocal laser microscopy (CLSM). Initial cell attachment to pyrite grains was estimated to be 26%, 35% and 43% when cells were pregrown with sulfur, iron(II) and pyrite as electron donors, respectively. It was observed that the cell adhesion correlated with an increase of EPS production; both processes were favoured when cells were pregrown with pyrite or iron(II). Also the effect of inorganic phosphate (Pi) starvation in the attachment of Acidianus was studied in similar tests using a base medium without Pi. An increase of cell attachment under Pi starvation conditions was detectable.
Fil: Castro, Camila Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Fermentaciones Industriales (i); Argentina
Fil: Vera, Mario. Universitat Duisburg - Essen. Aquatische Biotechnologie Biofilm Centre; Alemania
Fil: Donati, Edgardo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Fermentaciones Industriales (i); Argentina
Fil: Sand, Wolfgang. Universitat Duisburg - Essen. Aquatische Biotechnologie Biofilm Centre; Alemania - Materia
-
Acidianus
Archaea
Biofilm
Bioleaching
Eps
Thermophiles - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/4306
Ver los metadatos del registro completo
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Visualization of attachment and colonization of pyrite surfaces by a novel species of AcidianusCastro, Camila AndreaVera, MarioDonati, Edgardo RubenSand, WolfgangAcidianusArchaeaBiofilmBioleachingEpsThermophileshttps://purl.org/becyt/ford/2.8https://purl.org/becyt/ford/2In this work we have studied the attachment and colonization of pyrite surfaces by the recently isolated thermophilic archaeon Candidatus Acidianus copahuensis (from the geothermal Caviahue-Copahue system, Argentina). Cells pregrown with sulfur, iron(II) or pyrite were tested. In order to characterize the EPS glycoconjugates of this strain, fluorescent lectins were used. Concanavalin A (ConA) gave the best signal and was selected for further studies. Coupons and grains of pyrite were treated with DAPI (to stain attached cells) and TRITC-ConA (to stain polysaccharides from EPS). Pyrite surfaces were imaged by epifluorescence (EFM) and confocal laser microscopy (CLSM). Initial cell attachment to pyrite grains was estimated to be 26%, 35% and 43% when cells were pregrown with sulfur, iron(II) and pyrite as electron donors, respectively. It was observed that the cell adhesion correlated with an increase of EPS production; both processes were favoured when cells were pregrown with pyrite or iron(II). Also the effect of inorganic phosphate (Pi) starvation in the attachment of Acidianus was studied in similar tests using a base medium without Pi. An increase of cell attachment under Pi starvation conditions was detectable.Fil: Castro, Camila Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Fermentaciones Industriales (i); ArgentinaFil: Vera, Mario. Universitat Duisburg - Essen. Aquatische Biotechnologie Biofilm Centre; AlemaniaFil: Donati, Edgardo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Fermentaciones Industriales (i); ArgentinaFil: Sand, Wolfgang. Universitat Duisburg - Essen. Aquatische Biotechnologie Biofilm Centre; AlemaniaTrans Tech Publications2013-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4306Castro, Camila Andrea; Vera, Mario; Donati, Edgardo Ruben; Sand, Wolfgang; Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus; Trans Tech Publications; Advanced Materials Research; 825; 10-2013; 70-731022-6680enginfo:eu-repo/semantics/altIdentifier/url/http://www.scientific.net/AMR.825.70info:eu-repo/semantics/altIdentifier/doi/10.4028/www.scientific.net/AMR.825.70info:eu-repo/semantics/altIdentifier/issn/1022-6680info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:46:16Zoai:ri.conicet.gov.ar:11336/4306instacron: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 09:46:17.035CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus |
title |
Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus |
spellingShingle |
Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus Castro, Camila Andrea Acidianus Archaea Biofilm Bioleaching Eps Thermophiles |
title_short |
Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus |
title_full |
Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus |
title_fullStr |
Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus |
title_full_unstemmed |
Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus |
title_sort |
Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus |
dc.creator.none.fl_str_mv |
Castro, Camila Andrea Vera, Mario Donati, Edgardo Ruben Sand, Wolfgang |
author |
Castro, Camila Andrea |
author_facet |
Castro, Camila Andrea Vera, Mario Donati, Edgardo Ruben Sand, Wolfgang |
author_role |
author |
author2 |
Vera, Mario Donati, Edgardo Ruben Sand, Wolfgang |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Acidianus Archaea Biofilm Bioleaching Eps Thermophiles |
topic |
Acidianus Archaea Biofilm Bioleaching Eps Thermophiles |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.8 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
In this work we have studied the attachment and colonization of pyrite surfaces by the recently isolated thermophilic archaeon Candidatus Acidianus copahuensis (from the geothermal Caviahue-Copahue system, Argentina). Cells pregrown with sulfur, iron(II) or pyrite were tested. In order to characterize the EPS glycoconjugates of this strain, fluorescent lectins were used. Concanavalin A (ConA) gave the best signal and was selected for further studies. Coupons and grains of pyrite were treated with DAPI (to stain attached cells) and TRITC-ConA (to stain polysaccharides from EPS). Pyrite surfaces were imaged by epifluorescence (EFM) and confocal laser microscopy (CLSM). Initial cell attachment to pyrite grains was estimated to be 26%, 35% and 43% when cells were pregrown with sulfur, iron(II) and pyrite as electron donors, respectively. It was observed that the cell adhesion correlated with an increase of EPS production; both processes were favoured when cells were pregrown with pyrite or iron(II). Also the effect of inorganic phosphate (Pi) starvation in the attachment of Acidianus was studied in similar tests using a base medium without Pi. An increase of cell attachment under Pi starvation conditions was detectable. Fil: Castro, Camila Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Fermentaciones Industriales (i); Argentina Fil: Vera, Mario. Universitat Duisburg - Essen. Aquatische Biotechnologie Biofilm Centre; Alemania Fil: Donati, Edgardo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Fermentaciones Industriales (i); Argentina Fil: Sand, Wolfgang. Universitat Duisburg - Essen. Aquatische Biotechnologie Biofilm Centre; Alemania |
description |
In this work we have studied the attachment and colonization of pyrite surfaces by the recently isolated thermophilic archaeon Candidatus Acidianus copahuensis (from the geothermal Caviahue-Copahue system, Argentina). Cells pregrown with sulfur, iron(II) or pyrite were tested. In order to characterize the EPS glycoconjugates of this strain, fluorescent lectins were used. Concanavalin A (ConA) gave the best signal and was selected for further studies. Coupons and grains of pyrite were treated with DAPI (to stain attached cells) and TRITC-ConA (to stain polysaccharides from EPS). Pyrite surfaces were imaged by epifluorescence (EFM) and confocal laser microscopy (CLSM). Initial cell attachment to pyrite grains was estimated to be 26%, 35% and 43% when cells were pregrown with sulfur, iron(II) and pyrite as electron donors, respectively. It was observed that the cell adhesion correlated with an increase of EPS production; both processes were favoured when cells were pregrown with pyrite or iron(II). Also the effect of inorganic phosphate (Pi) starvation in the attachment of Acidianus was studied in similar tests using a base medium without Pi. An increase of cell attachment under Pi starvation conditions was detectable. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-10 |
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/11336/4306 Castro, Camila Andrea; Vera, Mario; Donati, Edgardo Ruben; Sand, Wolfgang; Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus; Trans Tech Publications; Advanced Materials Research; 825; 10-2013; 70-73 1022-6680 |
url |
http://hdl.handle.net/11336/4306 |
identifier_str_mv |
Castro, Camila Andrea; Vera, Mario; Donati, Edgardo Ruben; Sand, Wolfgang; Visualization of attachment and colonization of pyrite surfaces by a novel species of Acidianus; Trans Tech Publications; Advanced Materials Research; 825; 10-2013; 70-73 1022-6680 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.scientific.net/AMR.825.70 info:eu-repo/semantics/altIdentifier/doi/10.4028/www.scientific.net/AMR.825.70 info:eu-repo/semantics/altIdentifier/issn/1022-6680 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
Trans Tech Publications |
publisher.none.fl_str_mv |
Trans Tech Publications |
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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1844613445673025536 |
score |
13.070432 |