Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America

Autores
Gauna, Maria Cecilia; Parodi, Elisa Rosalia
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objective of this study was to describe the morphology of Punctaria latifolia individuals from the natural environment, their life cycle under culture conditions and the caryology of different phases. The life cycle of Punctaria latifolia was studied under culture conditions (140 μmol m-2 s-1; 12 h/12 h; 21 ± 1 °C). Fertile sporophytes were collected in the intertidal zone of Bahía San Blas (Buenos Aires, Argentina, South America), in August and December 2003. These macroscopic laminar plants were found adhered to the rocky substrate and on Spartina alterniflora plants. Sporophytes from the natural environment presented both plurilocular and unilocular sporangia, which released plurispores and unispores, respectively. The asexual reproduction was evidenced by the germination of unispores by formation of a single - pole germination that formed microscopic filamentous gametophytes. Terminal and intercalar gametangia released isogametes. Zygotes reconstituted the macroscopic phase. Chromosome counts gave 16 and 8 for sporophytic and gametophytic phases, respectively. This species presented a haplodiplobiontic heteromorphic life cycle as well as a direct type, when plurispores produced plethysmothalli.
Fil: Gauna, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología Acuática; Argentina
Fil: Parodi, Elisa Rosalia. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología Acuática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina
Materia
Argentina
Chromosomic Number
Life Cycle
Phaeophyceae
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:11336/78014
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South AmericaGauna, Maria CeciliaParodi, Elisa RosaliaArgentinaChromosomic NumberLife CyclePhaeophyceaehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The objective of this study was to describe the morphology of Punctaria latifolia individuals from the natural environment, their life cycle under culture conditions and the caryology of different phases. The life cycle of Punctaria latifolia was studied under culture conditions (140 μmol m-2 s-1; 12 h/12 h; 21 ± 1 °C). Fertile sporophytes were collected in the intertidal zone of Bahía San Blas (Buenos Aires, Argentina, South America), in August and December 2003. These macroscopic laminar plants were found adhered to the rocky substrate and on Spartina alterniflora plants. Sporophytes from the natural environment presented both plurilocular and unilocular sporangia, which released plurispores and unispores, respectively. The asexual reproduction was evidenced by the germination of unispores by formation of a single - pole germination that formed microscopic filamentous gametophytes. Terminal and intercalar gametangia released isogametes. Zygotes reconstituted the macroscopic phase. Chromosome counts gave 16 and 8 for sporophytic and gametophytic phases, respectively. This species presented a haplodiplobiontic heteromorphic life cycle as well as a direct type, when plurispores produced plethysmothalli.Fil: Gauna, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología Acuática; ArgentinaFil: Parodi, Elisa Rosalia. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología Acuática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; ArgentinaE. Schweizerbart'sche Verlagsbuchhandlung2010-07info: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/11336/78014Gauna, Maria Cecilia; Parodi, Elisa Rosalia; Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America; E. Schweizerbart'sche Verlagsbuchhandlung; Algological Studies; 134; 1; 7-2010; 55-660342-11201864-1318CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1127/1864-1318/2010/0134-0055info:eu-repo/semantics/altIdentifier/url/https://www.ingentaconnect.com/content/schweiz/algo/2010/00000134/00000001/art00005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:51Zoai:ri.conicet.gov.ar:11336/78014instacron: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:34982025-09-03 10:02:51.877CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America
title Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America
spellingShingle Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America
Gauna, Maria Cecilia
Argentina
Chromosomic Number
Life Cycle
Phaeophyceae
title_short Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America
title_full Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America
title_fullStr Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America
title_full_unstemmed Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America
title_sort Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America
dc.creator.none.fl_str_mv Gauna, Maria Cecilia
Parodi, Elisa Rosalia
author Gauna, Maria Cecilia
author_facet Gauna, Maria Cecilia
Parodi, Elisa Rosalia
author_role author
author2 Parodi, Elisa Rosalia
author2_role author
dc.subject.none.fl_str_mv Argentina
Chromosomic Number
Life Cycle
Phaeophyceae
topic Argentina
Chromosomic Number
Life Cycle
Phaeophyceae
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 objective of this study was to describe the morphology of Punctaria latifolia individuals from the natural environment, their life cycle under culture conditions and the caryology of different phases. The life cycle of Punctaria latifolia was studied under culture conditions (140 μmol m-2 s-1; 12 h/12 h; 21 ± 1 °C). Fertile sporophytes were collected in the intertidal zone of Bahía San Blas (Buenos Aires, Argentina, South America), in August and December 2003. These macroscopic laminar plants were found adhered to the rocky substrate and on Spartina alterniflora plants. Sporophytes from the natural environment presented both plurilocular and unilocular sporangia, which released plurispores and unispores, respectively. The asexual reproduction was evidenced by the germination of unispores by formation of a single - pole germination that formed microscopic filamentous gametophytes. Terminal and intercalar gametangia released isogametes. Zygotes reconstituted the macroscopic phase. Chromosome counts gave 16 and 8 for sporophytic and gametophytic phases, respectively. This species presented a haplodiplobiontic heteromorphic life cycle as well as a direct type, when plurispores produced plethysmothalli.
Fil: Gauna, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología Acuática; Argentina
Fil: Parodi, Elisa Rosalia. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología Acuática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina
description The objective of this study was to describe the morphology of Punctaria latifolia individuals from the natural environment, their life cycle under culture conditions and the caryology of different phases. The life cycle of Punctaria latifolia was studied under culture conditions (140 μmol m-2 s-1; 12 h/12 h; 21 ± 1 °C). Fertile sporophytes were collected in the intertidal zone of Bahía San Blas (Buenos Aires, Argentina, South America), in August and December 2003. These macroscopic laminar plants were found adhered to the rocky substrate and on Spartina alterniflora plants. Sporophytes from the natural environment presented both plurilocular and unilocular sporangia, which released plurispores and unispores, respectively. The asexual reproduction was evidenced by the germination of unispores by formation of a single - pole germination that formed microscopic filamentous gametophytes. Terminal and intercalar gametangia released isogametes. Zygotes reconstituted the macroscopic phase. Chromosome counts gave 16 and 8 for sporophytic and gametophytic phases, respectively. This species presented a haplodiplobiontic heteromorphic life cycle as well as a direct type, when plurispores produced plethysmothalli.
publishDate 2010
dc.date.none.fl_str_mv 2010-07
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/11336/78014
Gauna, Maria Cecilia; Parodi, Elisa Rosalia; Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America; E. Schweizerbart'sche Verlagsbuchhandlung; Algological Studies; 134; 1; 7-2010; 55-66
0342-1120
1864-1318
CONICET Digital
CONICET
url http://hdl.handle.net/11336/78014
identifier_str_mv Gauna, Maria Cecilia; Parodi, Elisa Rosalia; Life cycle of Punctaria latifolia (Chordariaceae, Phaeophyceae) from the coast of Buenos Aires Province, South America; E. Schweizerbart'sche Verlagsbuchhandlung; Algological Studies; 134; 1; 7-2010; 55-66
0342-1120
1864-1318
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1127/1864-1318/2010/0134-0055
info:eu-repo/semantics/altIdentifier/url/https://www.ingentaconnect.com/content/schweiz/algo/2010/00000134/00000001/art00005
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 E. Schweizerbart'sche Verlagsbuchhandlung
publisher.none.fl_str_mv E. Schweizerbart'sche Verlagsbuchhandlung
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
_version_ 1842269774431649792
score 13.13397

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