Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic Value

The seeds of 121 species belonging to 38 genera of the subtribe Angraecinae (Orchidaceae) were studied in terms of their morphological characteristics under a scanning electron microscope (SEM). This study provided new data about the seed micromorphology of 17 genera and 100 species. Ten qualitative...

Full description

Bibliographic Details
Authors: Gamarra, Roberto, Ortúñez, Emma, De La Fuente, Pablo, Valdelvira, Guillermo, Hernando, Álvaro
Format: article
Publication Date:2025
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/120888
Online Access:https://hdl.handle.net/20.500.14352/120888
Access Level:Open access
Keyword:582.594
581.48
581.15
575.1:58
57.063
Anticlinal zone
Epiphytes
Micromorphology
Periclinal walls
SEM
Testa
Testa extensions
Botánica (Biología)
Fisiología vegetal (Biología)
Genética
2417 Biología Vegetal (Botánica)
2417.20 Taxonomía Vegetal
2417.11 Anatomía Vegetal
2409.92 Genética Molecular de Plantas
id ES_d0bb6a0b2db0a7e1decdbec08c4f9284
oai_identifier_str oai:docta.ucm.es:20.500.14352/120888
network_acronym_str ES
network_name_str España
repository_id_str
spelling Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic ValueGamarra, RobertoOrtúñez, EmmaDe La Fuente, PabloValdelvira, GuillermoHernando, Álvaro582.594581.48581.15575.1:5857.063Anticlinal zoneEpiphytesMicromorphologyPericlinal wallsSEMTestaTesta extensionsBotánica (Biología)Fisiología vegetal (Biología)Genética2417 Biología Vegetal (Botánica)2417.20 Taxonomía Vegetal2417.11 Anatomía Vegetal2409.92 Genética Molecular de PlantasThe seeds of 121 species belonging to 38 genera of the subtribe Angraecinae (Orchidaceae) were studied in terms of their morphological characteristics under a scanning electron microscope (SEM). This study provided new data about the seed micromorphology of 17 genera and 100 species. Ten qualitative traits of the seed coat were analyzed, of which four were common for all the examined samples: elongated testa cells, anticlinal zone, curved transverse anticlinal walls, and sunken and narrow-to-not visible periclinal walls. These features are consistent with the epiphytic life-form of the genera studied. However, variation among genera was observed with reference to the seed shape, the morphology of the apical and the basal poles, the arrangement of the medial cells, the morphology of the longitudinal anticlinal walls, and the presence of testa extensions. A cluster analysis was performed, and two large groups were segregated according to the seed shape. Within a genus, all the examined species showed the same pattern of seed coat, except in Diaphananthe, Mystacidium, and Rhipidoglossum. On the other hand, the variation in the seed coat observed in Angraecum sensu lato supported its segregation into different genera. Our results perfectly fitted with recent taxonomic proposals.MDPIUniversidad Complutense de Madrid20252025-04-1620252025-04-16journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/120888reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1208882026-06-02T12:44:21Z
dc.title.none.fl_str_mv Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic Value
title Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic Value
spellingShingle Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic Value
Gamarra, Roberto
582.594
581.48
581.15
575.1:58
57.063
Anticlinal zone
Epiphytes
Micromorphology
Periclinal walls
SEM
Testa
Testa extensions
Botánica (Biología)
Fisiología vegetal (Biología)
Genética
2417 Biología Vegetal (Botánica)
2417.20 Taxonomía Vegetal
2417.11 Anatomía Vegetal
2409.92 Genética Molecular de Plantas
title_short Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic Value
title_full Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic Value
title_fullStr Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic Value
title_full_unstemmed Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic Value
title_sort Characterizing the Seed Coat in the Subtribe Angraecinae (Orchidaceae, Vandeae) and Its Taxonomic Value
dc.creator.none.fl_str_mv Gamarra, Roberto
Ortúñez, Emma
De La Fuente, Pablo
Valdelvira, Guillermo
Hernando, Álvaro
author Gamarra, Roberto
author_facet Gamarra, Roberto
Ortúñez, Emma
De La Fuente, Pablo
Valdelvira, Guillermo
Hernando, Álvaro
author_role author
author2 Ortúñez, Emma
De La Fuente, Pablo
Valdelvira, Guillermo
Hernando, Álvaro
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 582.594
581.48
581.15
575.1:58
57.063
Anticlinal zone
Epiphytes
Micromorphology
Periclinal walls
SEM
Testa
Testa extensions
Botánica (Biología)
Fisiología vegetal (Biología)
Genética
2417 Biología Vegetal (Botánica)
2417.20 Taxonomía Vegetal
2417.11 Anatomía Vegetal
2409.92 Genética Molecular de Plantas
topic 582.594
581.48
581.15
575.1:58
57.063
Anticlinal zone
Epiphytes
Micromorphology
Periclinal walls
SEM
Testa
Testa extensions
Botánica (Biología)
Fisiología vegetal (Biología)
Genética
2417 Biología Vegetal (Botánica)
2417.20 Taxonomía Vegetal
2417.11 Anatomía Vegetal
2409.92 Genética Molecular de Plantas
description The seeds of 121 species belonging to 38 genera of the subtribe Angraecinae (Orchidaceae) were studied in terms of their morphological characteristics under a scanning electron microscope (SEM). This study provided new data about the seed micromorphology of 17 genera and 100 species. Ten qualitative traits of the seed coat were analyzed, of which four were common for all the examined samples: elongated testa cells, anticlinal zone, curved transverse anticlinal walls, and sunken and narrow-to-not visible periclinal walls. These features are consistent with the epiphytic life-form of the genera studied. However, variation among genera was observed with reference to the seed shape, the morphology of the apical and the basal poles, the arrangement of the medial cells, the morphology of the longitudinal anticlinal walls, and the presence of testa extensions. A cluster analysis was performed, and two large groups were segregated according to the seed shape. Within a genus, all the examined species showed the same pattern of seed coat, except in Diaphananthe, Mystacidium, and Rhipidoglossum. On the other hand, the variation in the seed coat observed in Angraecum sensu lato supported its segregation into different genera. Our results perfectly fitted with recent taxonomic proposals.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-04-16
2025
2025-04-16
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/120888
url https://hdl.handle.net/20.500.14352/120888
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869420200375353344
score 15,81155

Similar Items