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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Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00319449_v47_n2_p221_Galati |
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todo:paper_00319449_v47_n2_p221_Galati2023-10-03T14:44:34Z The development of the megagametophyte in Ceiba insignis (Kunth) Gibbs & Semir (Ex. Chorisia speciosa St. Hil.) (Bombacaceae) Galati, B.G. Rosenfeldt, S. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, B.G. Rosenfeldt, S. 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. |
format |
JOUR |
author |
Galati, B.G. Rosenfeldt, S. |
author_facet |
Galati, B.G. Rosenfeldt, S. |
author_sort |
Galati, B.G. |
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) |
url |
http://hdl.handle.net/20.500.12110/paper_00319449_v47_n2_p221_Galati |
work_keys_str_mv |
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1807317051469987840 |