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Abstract:

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.

Registro:

Documento: Artículo
Título:The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance
Autor:Alberghina, J.S.; Vélez, C.G.; Vigna, M.S.
Filiación:Departamento de Ecología, Genética y Evolución, Laboratorio de Genética Evolutiva, Universidad de Buenos Aires, Ciudad Universitaria-Pabellón 2, Buenos Aires 1428, Argentina
Departamento de Biodiversidad y Biología Experimental, Laboratorio de Ficología y Cultivo Experimental de Microalgas, Buenos Aires, Argentina
Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Av. Angel Gallardo 470, Buenos Aires 1405, Argentina
Palabras clave:Chlorophyta; Oedogonium; Oogonial aperture; Systematics; Ultrastructure; algae; Chlorophyta; Oedogoniales; Oedogonium; Oedogonium cardiacum; Oedogonium decipiens
Año:2009
Volumen:280
Número:1-2
Página de inicio:99
Página de fin:104
DOI: http://dx.doi.org/10.1007/s00606-009-0163-y
Título revista:Plant Systematics and Evolution
Título revista abreviado:Plant Syst. Evol.
ISSN:03782697
CODEN:ESPFB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03782697_v280_n1-2_p99_Alberghina

Referencias:

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  • Alberghina, J.S., Vigna, M.S., Confalonieri, V.A., Phylogenetic position of the Oedogoniales within the green algae (Chlorophyta) and the evolution of the absolute orientation of the flagellar apparatus (2006) Plant Systematics and Evolution, 261 (1-4), pp. 151-163. , DOI 10.1007/s00606-006-0449-2
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Citas:

---------- APA ----------
Alberghina, J.S., Vélez, C.G. & Vigna, M.S. (2009) . The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance. Plant Systematics and Evolution, 280(1-2), 99-104.
http://dx.doi.org/10.1007/s00606-009-0163-y
---------- CHICAGO ----------
Alberghina, J.S., Vélez, C.G., Vigna, M.S. "The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance" . Plant Systematics and Evolution 280, no. 1-2 (2009) : 99-104.
http://dx.doi.org/10.1007/s00606-009-0163-y
---------- MLA ----------
Alberghina, J.S., Vélez, C.G., Vigna, M.S. "The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance" . Plant Systematics and Evolution, vol. 280, no. 1-2, 2009, pp. 99-104.
http://dx.doi.org/10.1007/s00606-009-0163-y
---------- VANCOUVER ----------
Alberghina, J.S., Vélez, C.G., Vigna, M.S. The oogonial aperture of Oedogonium decipiens var. decipiens (Oedogoniales, Chlorophyta) and its systematic significance. Plant Syst. Evol. 2009;280(1-2):99-104.
http://dx.doi.org/10.1007/s00606-009-0163-y