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dc.contributor.author
Tellería, María Cristina
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dc.date.available
2023-03-01T17:40:13Z
dc.date.issued
2012-04
dc.identifier.citation
Tellería, María Cristina; Palynological survey of the subtribe Elephantopinae (Asteraceae, Vernonieae); Springer Wien; Plant Systematics and Evolution; 298; 6; 4-2012; 1133-1139
dc.identifier.issn
0378-2697
dc.identifier.uri
http://hdl.handle.net/11336/189260
dc.description.abstract
Despite the taxonomic value of pollen morphology within the tribe Vernonieae, a detailed study of the pollen of the subtribe Elephantopinae is still lacking. The pollen morphology of ten species, representing three of the four genera of the subtribe, Elephantopus, Pseudoelephantopus and Orthopappus, was studied with LM, SEM, and TEM. The pollen of all the species studied was found to be echinolophate, although the differences in aperture features and both sculpture and exine structure allowed recognizing two pollen types. The species of Elephantopus (except for E. elongatus) and Pseudoelephantopus share the regular or more or less regular ridges pattern, the colporate condition but with the ectoapertures little developed, and the acaveate exine structure. From the sculpture and the apertures, the pollen of Caatinganthus harleyi was found to be similar to that of Elephantopus and Pseudoelephantopus. The pollen morphology of the monotypic Orthopappus, which is shared with that of E. elongatus, was further investigated for the first time. We found that it differs from that of the other species in having an irregular pattern of ridges, colporate condition but with a well-developed ectoapertures, and caveate exine. Additional studies of the exine structure and apertures features, coupled with molecular phylogeny, are needed to understand the evolution of pollen characters and re-evaluate the intergeneric relationships within the tribe.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Wien
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ASTERACEAE
dc.subject
ELEPHANTOPINAE
dc.subject
LM
dc.subject
POLLEN MORPHOLOGY
dc.subject
SEM
dc.subject
TEM
dc.subject
VERNONIEAE
dc.subject.classification
Ciencias de las Plantas, Botánica
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Palynological survey of the subtribe Elephantopinae (Asteraceae, Vernonieae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-03-01T17:13:50Z
dc.journal.volume
298
dc.journal.number
6
dc.journal.pagination
1133-1139
dc.journal.pais
Austria
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dc.journal.ciudad
Viena
dc.description.fil
Fil: Tellería, María Cristina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Sistemática y Biología Evolutiva; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.journal.title
Plant Systematics and Evolution
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00606-012-0625-5
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00606-012-0625-5
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