Spore wall ultrastructure in Anogramma species (Pteridaceae) from Argentina

The sporoderm ultrastructure of Anogramma Link species, which grow in Argentina, was studied using scanning and transmission electron microscopy. The species A. chaerophylla (Desv.) Link and A. lorentzii (Hieron.) Diels were studied with TEM for the first time. The spores of both species have a scul...

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Autores principales: Ramos Giacosa, Juan Pablo, Morbelli, Marta Alicia, Giudice, Gabriela Elena
Formato: Articulo
Lenguaje:Inglés
Publicado: 2004
Materias:
Botánica
Anogramma
sporoderm ultrastructure
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83318
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83318
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Botánica
Anogramma
sporoderm ultrastructure
spellingShingle Botánica
Anogramma
sporoderm ultrastructure
Ramos Giacosa, Juan Pablo
Morbelli, Marta Alicia
Giudice, Gabriela Elena
Spore wall ultrastructure in Anogramma species (Pteridaceae) from Argentina
topic_facet Botánica
Anogramma
sporoderm ultrastructure
description The sporoderm ultrastructure of Anogramma Link species, which grow in Argentina, was studied using scanning and transmission electron microscopy. The species A. chaerophylla (Desv.) Link and A. lorentzii (Hieron.) Diels were studied with TEM for the first time. The spores of both species have a sculptured, apparently two-layered exospore. The perispore is uniformly thickened on the whole surface: in A. chaerophylla it is three-layered, while, in A. lorentzii it is single-layered with a complex structure. Spherules are present on the perispore surface or incorporated into the structure of A. chaerophylla while, globules exist on and within the perispore in A. lorentzii. The sporoderm ultrastructure in these two species was compared with other cingulate genera within the Pteridaceae. The characteristics found in this work, with respect to spore wall structure and general morphology, suggest that these characters may differentiate species within genus.
format Articulo
Articulo
author Ramos Giacosa, Juan Pablo
Morbelli, Marta Alicia
Giudice, Gabriela Elena
author_facet Ramos Giacosa, Juan Pablo
Morbelli, Marta Alicia
Giudice, Gabriela Elena
author_sort Ramos Giacosa, Juan Pablo
title Spore wall ultrastructure in Anogramma species (Pteridaceae) from Argentina
title_short Spore wall ultrastructure in Anogramma species (Pteridaceae) from Argentina
title_full Spore wall ultrastructure in Anogramma species (Pteridaceae) from Argentina
title_fullStr Spore wall ultrastructure in Anogramma species (Pteridaceae) from Argentina
title_full_unstemmed Spore wall ultrastructure in Anogramma species (Pteridaceae) from Argentina
title_sort spore wall ultrastructure in anogramma species (pteridaceae) from argentina
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/83318
work_keys_str_mv AT ramosgiacosajuanpablo sporewallultrastructureinanogrammaspeciespteridaceaefromargentina
AT morbellimartaalicia sporewallultrastructureinanogrammaspeciespteridaceaefromargentina
AT giudicegabrielaelena sporewallultrastructureinanogrammaspeciespteridaceaefromargentina
bdutipo_str Repositorios
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