Ovule ontogenesis in Ceiba insignis (Kunth) Gibbs & Semir (ex. Chorisia speciosa St. Hil.) (Bombacaceae)
Ontogeny of the ovule in Ceiba insignis was examined. There is no previous account about ovular initiation in the family Bombacaceae while Ceiba is embryologically unknown. The mature ovule is anatropous, crassinucellate and bitegmic; integuments form a zig-zag micropyle. The ovule primordium is tri...
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1997
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319449_v47_n3_p247_Galati http://hdl.handle.net/20.500.12110/paper_00319449_v47_n3_p247_Galati |
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paper:paper_00319449_v47_n3_p247_Galati2023-06-08T14:59:43Z Ovule ontogenesis in Ceiba insignis (Kunth) Gibbs & Semir (ex. Chorisia speciosa St. Hil.) (Bombacaceae) Galati, Beatriz Gloria Rosenfeldt, Sonia Ceiba insignis Development Ovule Zig-zag micropyle Ontogeny of the ovule in Ceiba insignis was examined. There is no previous account about ovular initiation in the family Bombacaceae while Ceiba is embryologically unknown. The mature ovule is anatropous, crassinucellate and bitegmic; integuments form a zig-zag micropyle. The ovule primordium is trizonate. The outer and inner integuments are of dermal origin. The cells of the nucellar epidermis undergo periclinal divisions and form a nucellar cap. 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_n3_p247_Galati http://hdl.handle.net/20.500.12110/paper_00319449_v47_n3_p247_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 insignis Development Ovule Zig-zag micropyle |
spellingShingle |
Ceiba insignis Development Ovule Zig-zag micropyle Galati, Beatriz Gloria Rosenfeldt, Sonia Ovule ontogenesis in Ceiba insignis (Kunth) Gibbs & Semir (ex. Chorisia speciosa St. Hil.) (Bombacaceae) |
topic_facet |
Ceiba insignis Development Ovule Zig-zag micropyle |
description |
Ontogeny of the ovule in Ceiba insignis was examined. There is no previous account about ovular initiation in the family Bombacaceae while Ceiba is embryologically unknown. The mature ovule is anatropous, crassinucellate and bitegmic; integuments form a zig-zag micropyle. The ovule primordium is trizonate. The outer and inner integuments are of dermal origin. The cells of the nucellar epidermis undergo periclinal divisions and form a nucellar cap. |
author |
Galati, Beatriz Gloria Rosenfeldt, Sonia |
author_facet |
Galati, Beatriz Gloria Rosenfeldt, Sonia |
author_sort |
Galati, Beatriz Gloria |
title |
Ovule ontogenesis in Ceiba insignis (Kunth) Gibbs & Semir (ex. Chorisia speciosa St. Hil.) (Bombacaceae) |
title_short |
Ovule ontogenesis in Ceiba insignis (Kunth) Gibbs & Semir (ex. Chorisia speciosa St. Hil.) (Bombacaceae) |
title_full |
Ovule ontogenesis in Ceiba insignis (Kunth) Gibbs & Semir (ex. Chorisia speciosa St. Hil.) (Bombacaceae) |
title_fullStr |
Ovule ontogenesis in Ceiba insignis (Kunth) Gibbs & Semir (ex. Chorisia speciosa St. Hil.) (Bombacaceae) |
title_full_unstemmed |
Ovule ontogenesis in Ceiba insignis (Kunth) Gibbs & Semir (ex. Chorisia speciosa St. Hil.) (Bombacaceae) |
title_sort |
ovule ontogenesis 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_n3_p247_Galati http://hdl.handle.net/20.500.12110/paper_00319449_v47_n3_p247_Galati |
work_keys_str_mv |
AT galatibeatrizgloria ovuleontogenesisinceibainsigniskunthgibbssemirexchorisiaspeciosasthilbombacaceae AT rosenfeldtsonia ovuleontogenesisinceibainsigniskunthgibbssemirexchorisiaspeciosasthilbombacaceae |
_version_ |
1768545085548396544 |