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dc.contributor.author
Yañez, Agustina  
dc.contributor.author
Marquez, Gonzalo Javier  
dc.contributor.author
Morbelli, Marta Alicia  
dc.date.available
2018-07-31T18:59:03Z  
dc.date.issued
2016-01  
dc.identifier.citation
Yañez, Agustina; Marquez, Gonzalo Javier; Morbelli, Marta Alicia; Spore morphology and ultrastructure of Dennstaedtiaceae from Paranaense Phytogeographic Province I.: Genus Dennstaedtia; Elsevier Science; Review of Palaeobotany and Palynology; 224; 1-2016; 181-194  
dc.identifier.issn
0034-6667  
dc.identifier.uri
http://hdl.handle.net/11336/53635  
dc.description.abstract
The spore morphology and wall structure of Dennstaedtia species from the Phytogeographic Paranaense Province: Dennstaedtia cicutaria, D. cornuta, D. dissecta, D. globulifera, D. obtusifolia were studied using light microscopy (LM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The spores are trilete, brown, triangular in polar view and plane-hemispheric to plane-convex in equatorial view. The exospore is homogeneous, with two layers. The perispore has an alveolar structure and is composed of one or two layers. The outer perispore surface bears the sculpture, which has elements of varied shapes (verrucae, ridges, reticles), an different sizes and fusion. This variation allows characterize species or groups of species. Three different types of perispore ornamentation can be found: 1. Verrucate with verrucae covered with rodlets; 2. Verrucate-rugate with verrucae and smooth ridges; 3. Reticulate. The spores constitute an important source of characters with a systematic value for the genus Dennstaedtia and they are a useful tool for the identification of herbarium samples.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/  
dc.subject
Dennstaedtia  
dc.subject
Morphology  
dc.subject
Paranaense Province  
dc.subject
Spores  
dc.subject
Ultrastructure  
dc.subject.classification
Otras Ciencias Biológicas  
dc.subject.classification
Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Spore morphology and ultrastructure of Dennstaedtiaceae from Paranaense Phytogeographic Province I.: Genus Dennstaedtia  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-07-31T17:21:53Z  
dc.journal.volume
224  
dc.journal.pagination
181-194  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Yañez, Agustina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Marquez, Gonzalo Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Morbelli, Marta Alicia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.journal.title
Review of Palaeobotany and Palynology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.revpalbo.2015.06.012  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S003466671500127X