The development of the megagametophyte in Ceiba insignis (Kunth) Gibbs & Semir (Ex. Chorisia speciosa St. Hil.) (Bombacaceae)

The development of the female gametophyte in Ceiba insignis (Kunth) Gibbs & Semir has been investigated. A normal linear tetrad of megaspores is formed of which the lowermost one is functional and produces a seven-celled embryo-sac of Polygonum type. The antipodals are ephemeral. The filiform ap...

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Autores principales: Galati, Beatriz Gloria, Rosenfeldt, Sonia
Publicado: 1997
Materias:
Ceiba
Hypostase
Megagametophyte
Megaspores
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319449_v47_n2_p221_Galati
http://hdl.handle.net/20.500.12110/paper_00319449_v47_n2_p221_Galati
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00319449_v47_n2_p221_Galati
record_format dspace
spelling paper:paper_00319449_v47_n2_p221_Galati2023-06-08T14:59:43Z The development of the megagametophyte in Ceiba insignis (Kunth) Gibbs & Semir (Ex. Chorisia speciosa St. Hil.) (Bombacaceae) Galati, Beatriz Gloria Rosenfeldt, Sonia Ceiba Hypostase Megagametophyte Megaspores The development of the female gametophyte in Ceiba insignis (Kunth) Gibbs & Semir has been investigated. A normal linear tetrad of megaspores is formed of which the lowermost one is functional and produces a seven-celled embryo-sac of Polygonum type. The antipodals are ephemeral. The filiform apparatus of the synergids is very conspicuous. An hypostase with callosic walls is present in the chalazal tissue. Fil:Galati, B.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rosenfeldt, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319449_v47_n2_p221_Galati http://hdl.handle.net/20.500.12110/paper_00319449_v47_n2_p221_Galati
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ceiba
Hypostase
Megagametophyte
Megaspores
spellingShingle Ceiba
Hypostase
Megagametophyte
Megaspores
Galati, Beatriz Gloria
Rosenfeldt, Sonia
The development of the megagametophyte in Ceiba insignis (Kunth) Gibbs & Semir (Ex. Chorisia speciosa St. Hil.) (Bombacaceae)
topic_facet Ceiba
Hypostase
Megagametophyte
Megaspores
description The development of the female gametophyte in Ceiba insignis (Kunth) Gibbs & Semir has been investigated. A normal linear tetrad of megaspores is formed of which the lowermost one is functional and produces a seven-celled embryo-sac of Polygonum type. The antipodals are ephemeral. The filiform apparatus of the synergids is very conspicuous. An hypostase with callosic walls is present in the chalazal tissue.
author Galati, Beatriz Gloria
Rosenfeldt, Sonia
author_facet Galati, Beatriz Gloria
Rosenfeldt, Sonia
author_sort Galati, Beatriz Gloria
title The development of the megagametophyte in Ceiba insignis (Kunth) Gibbs & Semir (Ex. Chorisia speciosa St. Hil.) (Bombacaceae)
title_short The development of the megagametophyte in Ceiba insignis (Kunth) Gibbs & Semir (Ex. Chorisia speciosa St. Hil.) (Bombacaceae)
title_full The development of the megagametophyte in Ceiba insignis (Kunth) Gibbs & Semir (Ex. Chorisia speciosa St. Hil.) (Bombacaceae)
title_fullStr The development of the megagametophyte in Ceiba insignis (Kunth) Gibbs & Semir (Ex. Chorisia speciosa St. Hil.) (Bombacaceae)
title_full_unstemmed The development of the megagametophyte in Ceiba insignis (Kunth) Gibbs & Semir (Ex. Chorisia speciosa St. Hil.) (Bombacaceae)
title_sort development of the megagametophyte in ceiba insignis (kunth) gibbs & semir (ex. chorisia speciosa st. hil.) (bombacaceae)
publishDate 1997
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319449_v47_n2_p221_Galati
http://hdl.handle.net/20.500.12110/paper_00319449_v47_n2_p221_Galati
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