Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae Racif

This paper describes the morphology of the sexual phase and spores of Platycerium andinum and Platycerium wandae. Spores were sown in Thompson's media and the cultures were kept at 24-25 degrees C, with 12 h light/darkness photoperiod. Developmental phases were fixed in FAA and processed for ob...

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Autores: Mendoza-Ruiz, A, Espinosa-Matias, S, Gomez-Pignataro, LD, Perez-García, B
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Sistema de Información de la Facultad de Ciencias, UNAM
OAI Identifier:oai:repositorio.fciencias.unam.mx:11154/165
Acceso en línea:http://hdlhandlenet/123456789/184
Access Level:acceso abierto
Palabra clave:Microscopy
Gametophytes
Morphogenesis
Morphology
Platycerium
Polypodiaceae
Polypodiidae
Sexual phase
Scanning electron microscopy
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spelling Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae RacifMendoza-Ruiz, AEspinosa-Matias, SGomez-Pignataro, LDPerez-García, BMicroscopyGametophytesMorphogenesisMorphologyPlatyceriumPolypodiaceaePolypodiidaeSexual phaseScanning electron microscopyThis paper describes the morphology of the sexual phase and spores of Platycerium andinum and Platycerium wandae. Spores were sown in Thompson's media and the cultures were kept at 24-25 degrees C, with 12 h light/darkness photoperiod. Developmental phases were fixed in FAA and processed for observation with the scanning electron microscope. Spores of both species are monolete: Vittaria-type germination and Aspidium-type prothallial development were observed. In the phase of development, the gametophytes develop unicellular secretory and as they mature, develop bifurcated or branched pluricellular trichomes, both in the cushion and near the meristematic zone. Adult gametophytes in culture are cordiform-spatulate to cordiform-reniform, most are unisexual and a few are bisexual. Gametangia belong to the le ptosporangiate fern type. Archegonial morphology is uniform, with an elongate, thin neck curved toward the base of the gametophyte. Antheridia have a basal cell, an annular cell and an undivided opercular cell. Three hundred days after the spores were sown, sporophytes still had not developed. In both species, some spores germinate inside the sporangial capsule (intra-sporangial germination). We provide new information on morphogenesis in the genus Platycerium. (c) 2010 Elsevier Ltd. All rights reserved.2011-01-21T10:35:23Z2011-01-21T10:35:23Z2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0968-4328http://hdlhandlenet/123456789/1848910.1016/j.micron.2010.05.00541(7):806-813reponame:Sistema de Información de la Facultad de Ciencias, UNAMinstname:Universidad Nacional Autónoma de Méxicoinstacron:UNAMenMicroninfo:eu-repo/semantics/openAccessoai:repositorio.fciencias.unam.mx:11154/1652025-09-17T19:19:46Z
dc.title.none.fl_str_mv Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae Racif
title Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae Racif
spellingShingle Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae Racif
Mendoza-Ruiz, A
Microscopy
Gametophytes
Morphogenesis
Morphology
Platycerium
Polypodiaceae
Polypodiidae
Sexual phase
Scanning electron microscopy
title_short Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae Racif
title_full Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae Racif
title_fullStr Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae Racif
title_full_unstemmed Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae Racif
title_sort Gametophyte morphology of Platycerium andinum Baker and Platycerium wandae Racif
dc.creator.none.fl_str_mv Mendoza-Ruiz, A
Espinosa-Matias, S
Gomez-Pignataro, LD
Perez-García, B
author Mendoza-Ruiz, A
author_facet Mendoza-Ruiz, A
Espinosa-Matias, S
Gomez-Pignataro, LD
Perez-García, B
author_role author
author2 Espinosa-Matias, S
Gomez-Pignataro, LD
Perez-García, B
author2_role author
author
author
dc.subject.none.fl_str_mv Microscopy
Gametophytes
Morphogenesis
Morphology
Platycerium
Polypodiaceae
Polypodiidae
Sexual phase
Scanning electron microscopy
topic Microscopy
Gametophytes
Morphogenesis
Morphology
Platycerium
Polypodiaceae
Polypodiidae
Sexual phase
Scanning electron microscopy
description This paper describes the morphology of the sexual phase and spores of Platycerium andinum and Platycerium wandae. Spores were sown in Thompson's media and the cultures were kept at 24-25 degrees C, with 12 h light/darkness photoperiod. Developmental phases were fixed in FAA and processed for observation with the scanning electron microscope. Spores of both species are monolete: Vittaria-type germination and Aspidium-type prothallial development were observed. In the phase of development, the gametophytes develop unicellular secretory and as they mature, develop bifurcated or branched pluricellular trichomes, both in the cushion and near the meristematic zone. Adult gametophytes in culture are cordiform-spatulate to cordiform-reniform, most are unisexual and a few are bisexual. Gametangia belong to the le ptosporangiate fern type. Archegonial morphology is uniform, with an elongate, thin neck curved toward the base of the gametophyte. Antheridia have a basal cell, an annular cell and an undivided opercular cell. Three hundred days after the spores were sown, sporophytes still had not developed. In both species, some spores germinate inside the sporangial capsule (intra-sporangial germination). We provide new information on morphogenesis in the genus Platycerium. (c) 2010 Elsevier Ltd. All rights reserved.
publishDate 2010
dc.date.none.fl_str_mv 2010
2011-01-21T10:35:23Z
2011-01-21T10:35:23Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0968-4328
http://hdlhandlenet/123456789/184
89
10.1016/j.micron.2010.05.005
identifier_str_mv 0968-4328
89
10.1016/j.micron.2010.05.005
url http://hdlhandlenet/123456789/184
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv Micron
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv 41(7):806-813
reponame:Sistema de Información de la Facultad de Ciencias, UNAM
instname:Universidad Nacional Autónoma de México
instacron:UNAM
instname_str Universidad Nacional Autónoma de México
instacron_str UNAM
institution UNAM
reponame_str Sistema de Información de la Facultad de Ciencias, UNAM
collection Sistema de Información de la Facultad de Ciencias, UNAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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