Palynological analysis of the genus Dryopteris Adans. (Dryopteridaceae) in Argentina

The spore morphology and wall ultrastructure of Dryopteris filix-mas, D. patula and D. wallichiana from Argentina were studied using light microscope, scanning and transmission electron microscope. The study was carried out with herbarium material from Argentine institutions. Equatorial diameters, p...

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Autores principales: Gorrer, Daniel Alejandro, Ramos Giacosa, Juan Pablo, Giudice, Gabriela Elena
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Botánica
Argentina
Dryopteris
Ornamentation
Spore
Ultrastructure
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123699
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123699
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Botánica
Argentina
Dryopteris
Ornamentation
Spore
Ultrastructure
spellingShingle Botánica
Argentina
Dryopteris
Ornamentation
Spore
Ultrastructure
Gorrer, Daniel Alejandro
Ramos Giacosa, Juan Pablo
Giudice, Gabriela Elena
Palynological analysis of the genus Dryopteris Adans. (Dryopteridaceae) in Argentina
topic_facet Botánica
Argentina
Dryopteris
Ornamentation
Spore
Ultrastructure
description The spore morphology and wall ultrastructure of Dryopteris filix-mas, D. patula and D. wallichiana from Argentina were studied using light microscope, scanning and transmission electron microscope. The study was carried out with herbarium material from Argentine institutions. Equatorial diameters, polar diameters and laesura length were measured. The spores are monoletes with a rugate ornamentation. The folds are short to long, inflate, irregular in shape and size, and varying from subglobose to elongate. The perispore surface is rugulate. The exospore of all the species analyzed is two-layered in section. Simple and branched channels are also present. The perispore is composed of two layers, the inner one forms the ornamentation and the outer covers all the outer and inner surfaces. Some abnormalities, such as globose, triangular or twisted spores were observed. The morphology and ultrastructure of the species are very similar. The differences observed are related to the length and thickness of the perispore folds. The characteristics of these spores would not provide relevant information to differentiate species or sections within the genus, but can provide information for phylogenetic studies as well as for alterations in the biological cycles.
format Articulo
Articulo
author Gorrer, Daniel Alejandro
Ramos Giacosa, Juan Pablo
Giudice, Gabriela Elena
author_facet Gorrer, Daniel Alejandro
Ramos Giacosa, Juan Pablo
Giudice, Gabriela Elena
author_sort Gorrer, Daniel Alejandro
title Palynological analysis of the genus Dryopteris Adans. (Dryopteridaceae) in Argentina
title_short Palynological analysis of the genus Dryopteris Adans. (Dryopteridaceae) in Argentina
title_full Palynological analysis of the genus Dryopteris Adans. (Dryopteridaceae) in Argentina
title_fullStr Palynological analysis of the genus Dryopteris Adans. (Dryopteridaceae) in Argentina
title_full_unstemmed Palynological analysis of the genus Dryopteris Adans. (Dryopteridaceae) in Argentina
title_sort palynological analysis of the genus dryopteris adans. (dryopteridaceae) in argentina
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/123699
work_keys_str_mv AT gorrerdanielalejandro palynologicalanalysisofthegenusdryopterisadansdryopteridaceaeinargentina
AT ramosgiacosajuanpablo palynologicalanalysisofthegenusdryopterisadansdryopteridaceaeinargentina
AT giudicegabrielaelena palynologicalanalysisofthegenusdryopterisadansdryopteridaceaeinargentina
bdutipo_str Repositorios
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