Characterization of biominerals in species of Canna (Cannaceae)

 

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Detalles Bibliográficos
Autores: J. Baran, Enrique, C. González Baró, Ana, M. Ciciarelli, María, H. Rolleri, Cristina
Formato: artículo original
Estado:Versión publicada
Fecha de Publicación:2010
Descripción:Plant biominerals are not always well characterized, although this information is important for plant physiology and can be useful for taxonomic purposes. In this work, fresh plant material of seven wild neotropical species of genus Canna, C. ascendens, C. coccinea, C. indica, C. glauca, C. plurituberosa, C. variegatifolia and C. fuchsina sp. ined., taken from different habitats, were studied to characterize the biominerals in their internal tissues. For the first time, samples from primary and secondary veins of leaves were investigated by means of infrared spectroscopy, complemented with X-ray powder diffractometry and scanning electron microscopy. The spectroscopic results, supported by X-ray powder diffractometry, suggest that the calcium oxalate is present in the form of whewellite (CaC2O4×H2O) in all the investigated samples. It is interesting to emphasize that all IR spectra obtained were strongly similar in all species studied, thus indicating an identical chemical composition in terms of the biominerals found. In this sense, the results suggest that the species of Canna show similar ability to produce biogenic silica and produce an identical type of calcium oxalate within their tissues. These results can be an additional trait to support the relationship among the families of Zingiberales.
País:Portal de Revistas UCR
Institución:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Lenguaje:Inglés
OAI Identifier:oai:portal.ucr.ac.cr:article/5427
Acceso en línea:https://revistas.ucr.ac.cr/index.php/rbt/article/view/5427
Access Level:acceso abierto
Palabra clave:Canna
Cannaceae
biominerales
espectroscopía de infrarrojo
difractometría de rayos X
ópalo
sílice biogénica
oxalato de calcio
whewellita
biominerals
infrared spectroscopy
X-ray powder diffractometry
opal
biogenic silica
calcium oxalate
whewellite