Abnormal spore morphology and wall ultrastructure in Anemia tomentosa var. anthriscifolia and A. tomentosa var. tomentosa (Anemiaceae)

The spores of Anemia tomentosa var. anthriscifolia and A. tomentosa var. tomentosa were studied focusing the attention on their abnormalities. The study was based on fresh and herbarium material and the spores were examined with light, scanning and transmission electron microscopy. Normal, abnormal...

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Autor principal: Ramos Giacosa, Juan Pablo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Naturales
Botánica
Anemia
Anemiaceae
Spores
Abnormalities
Morphology
Ultrastructure
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/141498
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-141498
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Botánica
Anemia
Anemiaceae
Spores
Abnormalities
Morphology
Ultrastructure
spellingShingle Ciencias Naturales
Botánica
Anemia
Anemiaceae
Spores
Abnormalities
Morphology
Ultrastructure
Ramos Giacosa, Juan Pablo
Abnormal spore morphology and wall ultrastructure in Anemia tomentosa var. anthriscifolia and A. tomentosa var. tomentosa (Anemiaceae)
topic_facet Ciencias Naturales
Botánica
Anemia
Anemiaceae
Spores
Abnormalities
Morphology
Ultrastructure
description The spores of Anemia tomentosa var. anthriscifolia and A. tomentosa var. tomentosa were studied focusing the attention on their abnormalities. The study was based on fresh and herbarium material and the spores were examined with light, scanning and transmission electron microscopy. Normal, abnormal and abortive spores were observed in both taxa. The normal spores were trilete, triangular in polar view, and the ornamentation consisted of parallel ridges separated by narrow and smooth grooves. The spores were observed in monads, dyads, triads and tetrads. The abnormal spores were monolete, trilete, tetralete or alete with great variations in size. In fact, some spores were almost double the size of the normal ones. Some differences were also found in the ornamentation of the spores. Aborted and not completely developed spores were also observed in the specimens. The wall ultrastructure of the taxa was studied for the first time. The exospore was two-layered with numerous cavities inside its structure, and the perispore was also two-layered. The results revealed that the sporoderm ultrastructure of both normal and abnormal spores of the taxa analyzed was very similar.
format Articulo
Articulo
author Ramos Giacosa, Juan Pablo
author_facet Ramos Giacosa, Juan Pablo
author_sort Ramos Giacosa, Juan Pablo
title Abnormal spore morphology and wall ultrastructure in Anemia tomentosa var. anthriscifolia and A. tomentosa var. tomentosa (Anemiaceae)
title_short Abnormal spore morphology and wall ultrastructure in Anemia tomentosa var. anthriscifolia and A. tomentosa var. tomentosa (Anemiaceae)
title_full Abnormal spore morphology and wall ultrastructure in Anemia tomentosa var. anthriscifolia and A. tomentosa var. tomentosa (Anemiaceae)
title_fullStr Abnormal spore morphology and wall ultrastructure in Anemia tomentosa var. anthriscifolia and A. tomentosa var. tomentosa (Anemiaceae)
title_full_unstemmed Abnormal spore morphology and wall ultrastructure in Anemia tomentosa var. anthriscifolia and A. tomentosa var. tomentosa (Anemiaceae)
title_sort abnormal spore morphology and wall ultrastructure in anemia tomentosa var. anthriscifolia and a. tomentosa var. tomentosa (anemiaceae)
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/141498
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bdutipo_str Repositorios
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