A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)

Autores
Michetti, Karina Mariel; Leonardi, Patricia Ines; Caceres, Eduardo Jorge
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The diplobiontic–haplodiplontic life cycle with alternating isomorphic generations in Stigeoclonium tenue (C. Agardh) Kütz. is described for the first time. Sporophytes (2n = 10) arise from tetraflagellate zoospores that are produced by meiosis. Sporic meiosis might be inferred from the cruciform divisions formed during zoosporogenesis and is confirmed through observations of prophase I substages. Zoospores do not germinate directly but produce a haploid cyst that germinates to give rise to a gametophyte (n = 5). Gametophytes produce biflagellate isogametes, which fuse to produce zygotes that germinate by mitosis into the sporophytic stage. Gametophytes and sporophytes reproduce asexually both via mitotic tetraflagellate zoospores and by thallus fragmentation. Results from this study indicate that both the cosmopolitan distribution and dominance of S. tenue in many periphytic communities might be due to its multiple reproductive strategies.
Fil: Michetti, Karina Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Leonardi, Patricia Ines. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Caceres, Eduardo Jorge. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Materia
KARYOLOGY
CHAETOPHORALES
LIFE CYCLE
SEXUAL REPRODUCTION
STIGEOCLONIUM TENUE
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:11336/247441
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/247441
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)Michetti, Karina MarielLeonardi, Patricia InesCaceres, Eduardo JorgeKARYOLOGYCHAETOPHORALESLIFE CYCLESEXUAL REPRODUCTIONSTIGEOCLONIUM TENUEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The diplobiontic–haplodiplontic life cycle with alternating isomorphic generations in Stigeoclonium tenue (C. Agardh) Kütz. is described for the first time. Sporophytes (2n = 10) arise from tetraflagellate zoospores that are produced by meiosis. Sporic meiosis might be inferred from the cruciform divisions formed during zoosporogenesis and is confirmed through observations of prophase I substages. Zoospores do not germinate directly but produce a haploid cyst that germinates to give rise to a gametophyte (n = 5). Gametophytes produce biflagellate isogametes, which fuse to produce zygotes that germinate by mitosis into the sporophytic stage. Gametophytes and sporophytes reproduce asexually both via mitotic tetraflagellate zoospores and by thallus fragmentation. Results from this study indicate that both the cosmopolitan distribution and dominance of S. tenue in many periphytic communities might be due to its multiple reproductive strategies.Fil: Michetti, Karina Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Leonardi, Patricia Ines. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaFil: Caceres, Eduardo Jorge. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaWiley Blackwell Publishing, Inc2010-08-04info: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/11336/247441Michetti, Karina Mariel; Leonardi, Patricia Ines; Caceres, Eduardo Jorge; A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta); Wiley Blackwell Publishing, Inc; Journal of Phycology; 46; 5; 4-8-2010; 997-10050022-36461529-8817CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1529-8817.2010.00872.xinfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1529-8817.2010.00872.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:55Zoai:ri.conicet.gov.ar:11336/247441instacron: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 10:40:55.91CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)
title A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)
spellingShingle A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)
Michetti, Karina Mariel
KARYOLOGY
CHAETOPHORALES
LIFE CYCLE
SEXUAL REPRODUCTION
STIGEOCLONIUM TENUE
title_short A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)
title_full A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)
title_fullStr A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)
title_full_unstemmed A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)
title_sort A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta)
dc.creator.none.fl_str_mv Michetti, Karina Mariel
Leonardi, Patricia Ines
Caceres, Eduardo Jorge
author Michetti, Karina Mariel
author_facet Michetti, Karina Mariel
Leonardi, Patricia Ines
Caceres, Eduardo Jorge
author_role author
author2 Leonardi, Patricia Ines
Caceres, Eduardo Jorge
author2_role author
author
dc.subject.none.fl_str_mv KARYOLOGY
CHAETOPHORALES
LIFE CYCLE
SEXUAL REPRODUCTION
STIGEOCLONIUM TENUE
topic KARYOLOGY
CHAETOPHORALES
LIFE CYCLE
SEXUAL REPRODUCTION
STIGEOCLONIUM TENUE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The diplobiontic–haplodiplontic life cycle with alternating isomorphic generations in Stigeoclonium tenue (C. Agardh) Kütz. is described for the first time. Sporophytes (2n = 10) arise from tetraflagellate zoospores that are produced by meiosis. Sporic meiosis might be inferred from the cruciform divisions formed during zoosporogenesis and is confirmed through observations of prophase I substages. Zoospores do not germinate directly but produce a haploid cyst that germinates to give rise to a gametophyte (n = 5). Gametophytes produce biflagellate isogametes, which fuse to produce zygotes that germinate by mitosis into the sporophytic stage. Gametophytes and sporophytes reproduce asexually both via mitotic tetraflagellate zoospores and by thallus fragmentation. Results from this study indicate that both the cosmopolitan distribution and dominance of S. tenue in many periphytic communities might be due to its multiple reproductive strategies.
Fil: Michetti, Karina Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Leonardi, Patricia Ines. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Caceres, Eduardo Jorge. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
description The diplobiontic–haplodiplontic life cycle with alternating isomorphic generations in Stigeoclonium tenue (C. Agardh) Kütz. is described for the first time. Sporophytes (2n = 10) arise from tetraflagellate zoospores that are produced by meiosis. Sporic meiosis might be inferred from the cruciform divisions formed during zoosporogenesis and is confirmed through observations of prophase I substages. Zoospores do not germinate directly but produce a haploid cyst that germinates to give rise to a gametophyte (n = 5). Gametophytes produce biflagellate isogametes, which fuse to produce zygotes that germinate by mitosis into the sporophytic stage. Gametophytes and sporophytes reproduce asexually both via mitotic tetraflagellate zoospores and by thallus fragmentation. Results from this study indicate that both the cosmopolitan distribution and dominance of S. tenue in many periphytic communities might be due to its multiple reproductive strategies.
publishDate 2010
dc.date.none.fl_str_mv 2010-08-04
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/11336/247441
Michetti, Karina Mariel; Leonardi, Patricia Ines; Caceres, Eduardo Jorge; A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta); Wiley Blackwell Publishing, Inc; Journal of Phycology; 46; 5; 4-8-2010; 997-1005
0022-3646
1529-8817
CONICET Digital
CONICET
url http://hdl.handle.net/11336/247441
identifier_str_mv Michetti, Karina Mariel; Leonardi, Patricia Ines; Caceres, Eduardo Jorge; A comprehensive study of the life cycle of a South-American population of Stigeoclonium tenue (Chaetophorales, Chlorophyta); Wiley Blackwell Publishing, Inc; Journal of Phycology; 46; 5; 4-8-2010; 997-1005
0022-3646
1529-8817
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1529-8817.2010.00872.x
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1529-8817.2010.00872.x
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
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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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