The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance

According to traditional taxonomical criteria, the fertilization aperture in the genus Oedogonium has been classified into pore or circumcision type. To contribute with information useful to clarify the systematics of the Oedogoniales, we have studied the oogonial aperture in O. decipiens var. decip...

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Detalles Bibliográficos
Autores principales: Alberghina, J.S., Vélez, C.G., Vigna, M.S.
Formato: JOUR
Materias:
Chlorophyta
Oedogonium
Oogonial aperture
Systematics
Ultrastructure
algae
Oedogoniales
Oedogonium cardiacum
Oedogonium decipiens
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03782697_v280_n1-2_p99_Alberghina
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03782697_v280_n1-2_p99_Alberghina
record_format dspace
spelling todo:paper_03782697_v280_n1-2_p99_Alberghina2023-10-03T15:32:08Z The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance Alberghina, J.S. Vélez, C.G. Vigna, M.S. Chlorophyta Oedogonium Oogonial aperture Systematics Ultrastructure algae Chlorophyta Oedogoniales Oedogonium Oedogonium cardiacum Oedogonium decipiens According to traditional taxonomical criteria, the fertilization aperture in the genus Oedogonium has been classified into pore or circumcision type. To contribute with information useful to clarify the systematics of the Oedogoniales, we have studied the oogonial aperture in O. decipiens var. decipiens showing a circumcision in median position. The aperture mechanism and associated structures (line of weakness and thin layer) are similar to those previously described in O. cardiacum. The type and position of the aperture in mature oogonia was also studied in other seven Oedogonium species. In all the analyzed species, the fertilization aperture occurs along the line of weakness, but they would differ only in the opening degree of this line. Therefore, the types of oogonial aperture would not be so different as to discriminate groups of species belonging to the genus Oedogonium, in agreement with a previous molecular phylogenetic study of this group of algae. © 2009 Springer-Verlag. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03782697_v280_n1-2_p99_Alberghina
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Chlorophyta
Oedogonium
Oogonial aperture
Systematics
Ultrastructure
algae
Chlorophyta
Oedogoniales
Oedogonium
Oedogonium cardiacum
Oedogonium decipiens
spellingShingle Chlorophyta
Oedogonium
Oogonial aperture
Systematics
Ultrastructure
algae
Chlorophyta
Oedogoniales
Oedogonium
Oedogonium cardiacum
Oedogonium decipiens
Alberghina, J.S.
Vélez, C.G.
Vigna, M.S.
The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance
topic_facet Chlorophyta
Oedogonium
Oogonial aperture
Systematics
Ultrastructure
algae
Chlorophyta
Oedogoniales
Oedogonium
Oedogonium cardiacum
Oedogonium decipiens
description According to traditional taxonomical criteria, the fertilization aperture in the genus Oedogonium has been classified into pore or circumcision type. To contribute with information useful to clarify the systematics of the Oedogoniales, we have studied the oogonial aperture in O. decipiens var. decipiens showing a circumcision in median position. The aperture mechanism and associated structures (line of weakness and thin layer) are similar to those previously described in O. cardiacum. The type and position of the aperture in mature oogonia was also studied in other seven Oedogonium species. In all the analyzed species, the fertilization aperture occurs along the line of weakness, but they would differ only in the opening degree of this line. Therefore, the types of oogonial aperture would not be so different as to discriminate groups of species belonging to the genus Oedogonium, in agreement with a previous molecular phylogenetic study of this group of algae. © 2009 Springer-Verlag.
format JOUR
author Alberghina, J.S.
Vélez, C.G.
Vigna, M.S.
author_facet Alberghina, J.S.
Vélez, C.G.
Vigna, M.S.
author_sort Alberghina, J.S.
title The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance
title_short The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance
title_full The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance
title_fullStr The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance
title_full_unstemmed The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance
title_sort oogonial aperture of oedogonium decipiens var. decipiens (oedogoniales, chlorophyta) and its systematic significance
url http://hdl.handle.net/20.500.12110/paper_03782697_v280_n1-2_p99_Alberghina
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