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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Galati, B.G., Rosenfeldt, S.
Formato: JOUR
Materias:
Ceiba insignis
Development
Ovule
Zig-zag micropyle
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00319449_v47_n3_p247_Galati
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00319449_v47_n3_p247_Galati
record_format dspace
spelling todo:paper_00319449_v47_n3_p247_Galati2023-10-03T14:44:34Z Ovule ontogenesis in Ceiba insignis (Kunth) Gibbs & Semir (ex. Chorisia speciosa St. Hil.) (Bombacaceae) Galati, B.G. Rosenfeldt, S. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, B.G.
Rosenfeldt, S.
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.
format JOUR
author Galati, B.G.
Rosenfeldt, S.
author_facet Galati, B.G.
Rosenfeldt, S.
author_sort Galati, B.G.
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)
url http://hdl.handle.net/20.500.12110/paper_00319449_v47_n3_p247_Galati
work_keys_str_mv AT galatibg ovuleontogenesisinceibainsigniskunthgibbssemirexchorisiaspeciosasthilbombacaceae
AT rosenfeldts ovuleontogenesisinceibainsigniskunthgibbssemirexchorisiaspeciosasthilbombacaceae
_version_ 1807324470236413952

Ejemplares similares