Embryological studies in Lotus glaber (Fabaceae)

The development of the female gametophyte and the pollen grain, the ultrastructure of the mature megagametophyte and the endothelial cells in Lotus glaber were examined. The anther wall development follows the dicotyledonous type. The tapetum is secretory, the microspore tetrads are tetrahedral and...

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Detalles Bibliográficos
Autores principales: Galati, Beatriz Gloria, Rosenfeldt, Sonia
Publicado: 2006
Materias:
Embryology
Endothelium
Lotus
Megagametophyte
Ultrastructure
Fabaceae
Lotus glaber
Polygonum
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00033847_v43_n2_p97_Galati
http://hdl.handle.net/20.500.12110/paper_00033847_v43_n2_p97_Galati
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00033847_v43_n2_p97_Galati
record_format dspace
spelling paper:paper_00033847_v43_n2_p97_Galati2023-06-08T14:24:25Z Embryological studies in Lotus glaber (Fabaceae) Galati, Beatriz Gloria Rosenfeldt, Sonia Embryology Endothelium Lotus Megagametophyte Ultrastructure Fabaceae Lotus glaber Polygonum The development of the female gametophyte and the pollen grain, the ultrastructure of the mature megagametophyte and the endothelial cells in Lotus glaber were examined. The anther wall development follows the dicotyledonous type. The tapetum is secretory, the microspore tetrads are tetrahedral and pollen grains are shed at a bicellular stage. The mature ovule is anatropous, crassinucellar and bitegmic; integuments form a zig-zag micropyle. A T-shaped megaspore tetrad is formed and the lowest megaspore is functional and produces a 7-celled embryo-sac corresponding to the Polygonum type. The synergids show ultrastructural differences, involving dictyosomes and ERr; these differences suggest a functional differentiation, probably related to the reception of the pollen tube. © Finnish Zoological and Botanical Publishing Board 2006. 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. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00033847_v43_n2_p97_Galati http://hdl.handle.net/20.500.12110/paper_00033847_v43_n2_p97_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 Embryology
Endothelium
Lotus
Megagametophyte
Ultrastructure
Fabaceae
Lotus glaber
Polygonum
spellingShingle Embryology
Endothelium
Lotus
Megagametophyte
Ultrastructure
Fabaceae
Lotus glaber
Polygonum
Galati, Beatriz Gloria
Rosenfeldt, Sonia
Embryological studies in Lotus glaber (Fabaceae)
topic_facet Embryology
Endothelium
Lotus
Megagametophyte
Ultrastructure
Fabaceae
Lotus glaber
Polygonum
description The development of the female gametophyte and the pollen grain, the ultrastructure of the mature megagametophyte and the endothelial cells in Lotus glaber were examined. The anther wall development follows the dicotyledonous type. The tapetum is secretory, the microspore tetrads are tetrahedral and pollen grains are shed at a bicellular stage. The mature ovule is anatropous, crassinucellar and bitegmic; integuments form a zig-zag micropyle. A T-shaped megaspore tetrad is formed and the lowest megaspore is functional and produces a 7-celled embryo-sac corresponding to the Polygonum type. The synergids show ultrastructural differences, involving dictyosomes and ERr; these differences suggest a functional differentiation, probably related to the reception of the pollen tube. © Finnish Zoological and Botanical Publishing Board 2006.
author Galati, Beatriz Gloria
Rosenfeldt, Sonia
author_facet Galati, Beatriz Gloria
Rosenfeldt, Sonia
author_sort Galati, Beatriz Gloria
title Embryological studies in Lotus glaber (Fabaceae)
title_short Embryological studies in Lotus glaber (Fabaceae)
title_full Embryological studies in Lotus glaber (Fabaceae)
title_fullStr Embryological studies in Lotus glaber (Fabaceae)
title_full_unstemmed Embryological studies in Lotus glaber (Fabaceae)
title_sort embryological studies in lotus glaber (fabaceae)
publishDate 2006
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00033847_v43_n2_p97_Galati
http://hdl.handle.net/20.500.12110/paper_00033847_v43_n2_p97_Galati
work_keys_str_mv AT galatibeatrizgloria embryologicalstudiesinlotusglaberfabaceae
AT rosenfeldtsonia embryologicalstudiesinlotusglaberfabaceae
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