Seed structure and histochemistry in the palm Euterpe edulis

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The Euterpe edulis embryo consists of a prominent single cotyledon, a very short radicle-hypocotyl axis and an epicotyl. The epicotyl is obliquely angled with respect to the cotyledon; consequently it corresponds to one of the two categories recognized for palm seeds by DeMason (1988). Parenchyma, p...

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Detalles Bibliográficos
Autores principales: Panza, V., Láinez, V., Maldonado, S.
Formato: JOUR
Materias:
Embryo
Minerals
Mitochondria
Palmito
Phytoferritin
Proteinbodies
Recalcitrance
Vacuole
cell organelle
embryo
histology
seed
Euterpe
Euterpe edulis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00244074_v145_n4_p445_Panza
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00244074_v145_n4_p445_Panza2023-10-03T14:35:02Z Seed structure and histochemistry in the palm Euterpe edulis Panza, V. Láinez, V. Maldonado, S. Embryo Minerals Mitochondria Palmito Phytoferritin Proteinbodies Recalcitrance Vacuole cell organelle embryo histology seed Euterpe Euterpe edulis The Euterpe edulis embryo consists of a prominent single cotyledon, a very short radicle-hypocotyl axis and an epicotyl. The epicotyl is obliquely angled with respect to the cotyledon; consequently it corresponds to one of the two categories recognized for palm seeds by DeMason (1988). Parenchyma, protoderm and procambium can be distinguished on the basis of position and shape of their cells, which are highly vacuolated with one central vacuole and the cytoplasm restricted to a thin parietal layer. Initial cells from both apical meristems are also vacuolated but they have small vacuoles distributed around the nuclei. Silica occurs in cell walls of some protodermal cells. Raphides, silica bodies and tannins all occur occasionally in vacuoles, especially in the basal cotyledon region. Most embryo cells lack storage reserves and exhibit an active state, with numerous mitochondria, RER cisternae and Golgi apparatus, indicating a strategy of continuous development without the interposition, at maturity, of a dry state. The endosperm consists of living cells with very large nuclei and thickened cell walls. Similar to the endosperm of other studied palm species, their cells exhibit a quiescent appearance with lipid, protein, minerals (in the cytoplasm) and mannans (in the cell walls) as the insoluble storage reserves. © 2004 The Linnean Society of London. Fil:Láinez, V. 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_00244074_v145_n4_p445_Panza
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Embryo
Minerals
Mitochondria
Palmito
Phytoferritin
Proteinbodies
Recalcitrance
Vacuole
cell organelle
embryo
histology
seed
Euterpe
Euterpe edulis
spellingShingle Embryo
Minerals
Mitochondria
Palmito
Phytoferritin
Proteinbodies
Recalcitrance
Vacuole
cell organelle
embryo
histology
seed
Euterpe
Euterpe edulis
Panza, V.
Láinez, V.
Maldonado, S.
Seed structure and histochemistry in the palm Euterpe edulis
topic_facet Embryo
Minerals
Mitochondria
Palmito
Phytoferritin
Proteinbodies
Recalcitrance
Vacuole
cell organelle
embryo
histology
seed
Euterpe
Euterpe edulis
description The Euterpe edulis embryo consists of a prominent single cotyledon, a very short radicle-hypocotyl axis and an epicotyl. The epicotyl is obliquely angled with respect to the cotyledon; consequently it corresponds to one of the two categories recognized for palm seeds by DeMason (1988). Parenchyma, protoderm and procambium can be distinguished on the basis of position and shape of their cells, which are highly vacuolated with one central vacuole and the cytoplasm restricted to a thin parietal layer. Initial cells from both apical meristems are also vacuolated but they have small vacuoles distributed around the nuclei. Silica occurs in cell walls of some protodermal cells. Raphides, silica bodies and tannins all occur occasionally in vacuoles, especially in the basal cotyledon region. Most embryo cells lack storage reserves and exhibit an active state, with numerous mitochondria, RER cisternae and Golgi apparatus, indicating a strategy of continuous development without the interposition, at maturity, of a dry state. The endosperm consists of living cells with very large nuclei and thickened cell walls. Similar to the endosperm of other studied palm species, their cells exhibit a quiescent appearance with lipid, protein, minerals (in the cytoplasm) and mannans (in the cell walls) as the insoluble storage reserves. © 2004 The Linnean Society of London.
format JOUR
author Panza, V.
Láinez, V.
Maldonado, S.
author_facet Panza, V.
Láinez, V.
Maldonado, S.
author_sort Panza, V.
title Seed structure and histochemistry in the palm Euterpe edulis
title_short Seed structure and histochemistry in the palm Euterpe edulis
title_full Seed structure and histochemistry in the palm Euterpe edulis
title_fullStr Seed structure and histochemistry in the palm Euterpe edulis
title_full_unstemmed Seed structure and histochemistry in the palm Euterpe edulis
title_sort seed structure and histochemistry in the palm euterpe edulis
url http://hdl.handle.net/20.500.12110/paper_00244074_v145_n4_p445_Panza
work_keys_str_mv AT panzav seedstructureandhistochemistryinthepalmeuterpeedulis
AT lainezv seedstructureandhistochemistryinthepalmeuterpeedulis
AT maldonados seedstructureandhistochemistryinthepalmeuterpeedulis
_version_ 1807319159049027584

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