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dc.contributor.author
Pérez Cuadra, Vanesa
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dc.contributor.author
Hermann, P.
dc.date.available
2016-08-10T22:46:58Z
dc.date.issued
2013-02
dc.identifier.citation
Pérez Cuadra, Vanesa; Hermann, P.; Characterization and macropattern of calcium oxalate phytoliths in Argentinean endemic species of Chenopodioideae (Amaranthaceae); Elsevier; Quaternary International; 287; 2-2013; 83-88
dc.identifier.issn
1040-6182
dc.identifier.uri
http://hdl.handle.net/11336/7083
dc.description.abstract
The Chenopodioideae comprises species with a worldwide distribution, mainly confined to xeric or saline areas. Calcium oxalate crystals (calciphytoliths) are abundant in these species and relatively poorly studied. The aim of this work is to characterize the different types of calciphytoliths and describe their macropatterns in Atriplex undulata, Nitrophila australis var. australis and Suaeda divaricata (Chenopodioideae). Mature leaves of the three species were collected in Salitral de la Vidriera (Argentina), killed and fixed in formalin-acetic acid-alcohol and processed using common techniques for anatomical studies and crystal macropattern identification. Cross sections of A. undulata show that crystals occur subepidermically in the chlorenchymatic tissue while in N. australis var. australis and S. divaricata they occur deeper in the aquaeous tissue. Only A. undulata has two types of crystals: prims and druses; the latter may be of two kinds: druses type A1 and B according to the shape of the individual crystals involved. N. australis var. australis presents type A1 druses while S. divaricata has a third type, A2. In cleared leaves of A. undulata and N. australis var. australis crystals can be observed in intercostal areas; in S. divaricata they are associated with the vascular bundles. The characterization of crystals and their macropatterns are useful for the identification of these species, wich implies their taxonomic value.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Phytolihts
dc.subject
Chenopodioideae
dc.subject
Calcium Oxalate Crystals
dc.subject
Macropatterns
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
Characterization and macropattern of calcium oxalate phytoliths in Argentinean endemic species of Chenopodioideae (Amaranthaceae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-05-10T14:34:14Z
dc.journal.volume
287
dc.journal.pagination
83-88
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Pérez Cuadra, Vanesa. Universidad Nacional del Sur; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Bahia Blanca. Instituto de Ciencias Biologicas y Biomedicas del Sur; Argentina
dc.description.fil
Fil: Hermann, P.. Universidad Nacional del Sur; Argentina
dc.journal.title
Quaternary International
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1040618211005830
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.quaint.2011.10.010
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2011.10.010
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