Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells

Autores
Vouilloud. Amelia A.; Leonardi, Patricia Ines; Cáceres, Eduardo J.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The ultrastructure of vegetative internodal cells in a representative of the genus Tolypella (section Rothia)is described for the first time for Tolypella intricata. The most striking difference compared with the cells ofChara and Nitella is that the four-layered lateral cell wall shows the regular presence of unique refractivelenticular thickenings, which we designate as ?tolysomes?, considering their unique ultrastructure eluci-dated here for the first time. Tolysomes greatly amplify the plasma membrane surface; thereby definingparticular spaces of the cytoplasm. There are similar structures in the cell walls of the non-charaleancharophyte Coleochaete orbicularis and also in bryophytes, angiosperms and gymnosperms. As the func-tion of tolysomes is hitherto elusive, a bona fide analysis of evolutionary significance is not yet possible.C-shaped amitotic nuclei are similar to those described for young internodal Chara cells. Resting amitoticnuclei exhibit normal nuclear envelope, dispersed granular chromatin and numerous nucleoli with vari-able size. Nevertheless, they show neither the single, central nucleolus characteristic of dividing Charanuclei nor the bundles of tubular elements running parallel to the long axis of the nucleus, which arealso normal in Chara and Nitella amitotic nuclei. The presence of C-shaped resting nuclei of Tolypella andChara and their absence in Nitella and the presence of spindle-shaped nuclei in Nitella, but not in Tolypella,suggest that Tolypella (section Rothia) divergence took place earlier than did Nitella in accordance with,but also in contradiction to molecular data. Mature echinoid bodies and chloroplasts in Tolypella intricataare entirely similar to those previously described for Chara and Nitella.
Fil: Vouilloud. Amelia A.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ficología y Micología; Argentina
Fil: Leonardi, Patricia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida(i); Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ficología y Micología; Argentina
Fil: Cáceres, Eduardo J.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ficología y Micología; Argentina
Materia
Charales
Tolypella
Tolysome
Ultrastructure
Vegetative Cells
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/11419
Acceder
id CONICETDig_8c5963cc151ba2439492773c0eb0118f
oai_identifier_str oai:ri.conicet.gov.ar:11336/11419
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cellsVouilloud. Amelia A.Leonardi, Patricia InesCáceres, Eduardo J.CharalesTolypellaTolysomeUltrastructureVegetative Cellshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The ultrastructure of vegetative internodal cells in a representative of the genus Tolypella (section Rothia)is described for the first time for Tolypella intricata. The most striking difference compared with the cells ofChara and Nitella is that the four-layered lateral cell wall shows the regular presence of unique refractivelenticular thickenings, which we designate as ?tolysomes?, considering their unique ultrastructure eluci-dated here for the first time. Tolysomes greatly amplify the plasma membrane surface; thereby definingparticular spaces of the cytoplasm. There are similar structures in the cell walls of the non-charaleancharophyte Coleochaete orbicularis and also in bryophytes, angiosperms and gymnosperms. As the func-tion of tolysomes is hitherto elusive, a bona fide analysis of evolutionary significance is not yet possible.C-shaped amitotic nuclei are similar to those described for young internodal Chara cells. Resting amitoticnuclei exhibit normal nuclear envelope, dispersed granular chromatin and numerous nucleoli with vari-able size. Nevertheless, they show neither the single, central nucleolus characteristic of dividing Charanuclei nor the bundles of tubular elements running parallel to the long axis of the nucleus, which arealso normal in Chara and Nitella amitotic nuclei. The presence of C-shaped resting nuclei of Tolypella andChara and their absence in Nitella and the presence of spindle-shaped nuclei in Nitella, but not in Tolypella,suggest that Tolypella (section Rothia) divergence took place earlier than did Nitella in accordance with,but also in contradiction to molecular data. Mature echinoid bodies and chloroplasts in Tolypella intricataare entirely similar to those previously described for Chara and Nitella.Fil: Vouilloud. Amelia A.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ficología y Micología; ArgentinaFil: Leonardi, Patricia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida(i); Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ficología y Micología; ArgentinaFil: Cáceres, Eduardo J.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ficología y Micología; ArgentinaElsevier Science2015-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11419Vouilloud. Amelia A.; Leonardi, Patricia Ines; Cáceres, Eduardo J.; Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells; Elsevier Science; Aquatic Botany; 120; Part A; 1-2015; 67-720304-3770enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304377014000783info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1016/j.aquabot.2014.05.013info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:52Zoai:ri.conicet.gov.ar:11336/11419instacron: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 10:02:53.479CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells
title Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells
spellingShingle Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells
Vouilloud. Amelia A.
Charales
Tolypella
Tolysome
Ultrastructure
Vegetative Cells
title_short Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells
title_full Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells
title_fullStr Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells
title_full_unstemmed Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells
title_sort Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells
dc.creator.none.fl_str_mv Vouilloud. Amelia A.
Leonardi, Patricia Ines
Cáceres, Eduardo J.
author Vouilloud. Amelia A.
author_facet Vouilloud. Amelia A.
Leonardi, Patricia Ines
Cáceres, Eduardo J.
author_role author
author2 Leonardi, Patricia Ines
Cáceres, Eduardo J.
author2_role author
author
dc.subject.none.fl_str_mv Charales
Tolypella
Tolysome
Ultrastructure
Vegetative Cells
topic Charales
Tolypella
Tolysome
Ultrastructure
Vegetative Cells
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 ultrastructure of vegetative internodal cells in a representative of the genus Tolypella (section Rothia)is described for the first time for Tolypella intricata. The most striking difference compared with the cells ofChara and Nitella is that the four-layered lateral cell wall shows the regular presence of unique refractivelenticular thickenings, which we designate as ?tolysomes?, considering their unique ultrastructure eluci-dated here for the first time. Tolysomes greatly amplify the plasma membrane surface; thereby definingparticular spaces of the cytoplasm. There are similar structures in the cell walls of the non-charaleancharophyte Coleochaete orbicularis and also in bryophytes, angiosperms and gymnosperms. As the func-tion of tolysomes is hitherto elusive, a bona fide analysis of evolutionary significance is not yet possible.C-shaped amitotic nuclei are similar to those described for young internodal Chara cells. Resting amitoticnuclei exhibit normal nuclear envelope, dispersed granular chromatin and numerous nucleoli with vari-able size. Nevertheless, they show neither the single, central nucleolus characteristic of dividing Charanuclei nor the bundles of tubular elements running parallel to the long axis of the nucleus, which arealso normal in Chara and Nitella amitotic nuclei. The presence of C-shaped resting nuclei of Tolypella andChara and their absence in Nitella and the presence of spindle-shaped nuclei in Nitella, but not in Tolypella,suggest that Tolypella (section Rothia) divergence took place earlier than did Nitella in accordance with,but also in contradiction to molecular data. Mature echinoid bodies and chloroplasts in Tolypella intricataare entirely similar to those previously described for Chara and Nitella.
Fil: Vouilloud. Amelia A.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ficología y Micología; Argentina
Fil: Leonardi, Patricia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida(i); Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ficología y Micología; Argentina
Fil: Cáceres, Eduardo J.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ficología y Micología; Argentina
description The ultrastructure of vegetative internodal cells in a representative of the genus Tolypella (section Rothia)is described for the first time for Tolypella intricata. The most striking difference compared with the cells ofChara and Nitella is that the four-layered lateral cell wall shows the regular presence of unique refractivelenticular thickenings, which we designate as ?tolysomes?, considering their unique ultrastructure eluci-dated here for the first time. Tolysomes greatly amplify the plasma membrane surface; thereby definingparticular spaces of the cytoplasm. There are similar structures in the cell walls of the non-charaleancharophyte Coleochaete orbicularis and also in bryophytes, angiosperms and gymnosperms. As the func-tion of tolysomes is hitherto elusive, a bona fide analysis of evolutionary significance is not yet possible.C-shaped amitotic nuclei are similar to those described for young internodal Chara cells. Resting amitoticnuclei exhibit normal nuclear envelope, dispersed granular chromatin and numerous nucleoli with vari-able size. Nevertheless, they show neither the single, central nucleolus characteristic of dividing Charanuclei nor the bundles of tubular elements running parallel to the long axis of the nucleus, which arealso normal in Chara and Nitella amitotic nuclei. The presence of C-shaped resting nuclei of Tolypella andChara and their absence in Nitella and the presence of spindle-shaped nuclei in Nitella, but not in Tolypella,suggest that Tolypella (section Rothia) divergence took place earlier than did Nitella in accordance with,but also in contradiction to molecular data. Mature echinoid bodies and chloroplasts in Tolypella intricataare entirely similar to those previously described for Chara and Nitella.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/11419
Vouilloud. Amelia A.; Leonardi, Patricia Ines; Cáceres, Eduardo J.; Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells; Elsevier Science; Aquatic Botany; 120; Part A; 1-2015; 67-72
0304-3770
url http://hdl.handle.net/11336/11419
identifier_str_mv Vouilloud. Amelia A.; Leonardi, Patricia Ines; Cáceres, Eduardo J.; Mixed evolutionary traits of Tolypella (section Rothia, Charales) compared with Chara and Nitella shown by ultrastructure of vegetative internodal cells; Elsevier Science; Aquatic Botany; 120; Part A; 1-2015; 67-72
0304-3770
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304377014000783
info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1016/j.aquabot.2014.05.013
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
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 13.13397

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