Título

Tolerance to cadmium of agave lechuguilla (agavaceae) seeds and seedlings from sites contaminated with heavy metals

Autor

CARMEN ALEJANDRA MENDEZ HURTADO

JOSE RENE RANGEL MENDEZ

LAURA YAÑEZ ESPINOSA

JOEL DAVID FLORES RIVAS

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Identificador alterno

doi: http://dx.doi.org/10.1155/2013/167834

Materias

INGENIERÍA Y TECNOLOGÍA - (CTI) CIENCIAS TECNOLÓGICAS - (CTI)

Resumen o descripción

"We investigated if seeds of Agave lechuguilla from contaminated sites with heavy metals were more tolerant to Cd ions than seeds from noncontaminated sites. Seeds from a highly contaminated site (Villa de la Paz) and from a noncontaminated site (Villa de Zaragoza) were evaluated. We tested the effect of Cd concentrations on several ecophysiological, morphological, genetical, and anatomical responses. Seed viability, seed germination, seedling biomass, and radicle length were higher for the non-polluted site than for the contaminated one. The leaves of seedlings from the contaminated place had more cadmium and showed peaks attributed to chemical functional groups such as amines, amides, carboxyl, and alkenes that tended to disappear due to increasing the concentration of cadmium than those from Villa de Zaragoza. Malformed cells in the parenchyma surrounding the vascular bundles were found in seedlings grown with Cd from both sites. The leaves from the contaminated place showed a higher metallothioneins expression in seedlings from the control group than that of seedlings at different Cd concentrations. Most of our results fitted into the hypothesis that plants from metal-contaminated places do not tolerate more pollution, because of the accumulative effect that cadmium might have on them."

Editor

Hindawi Publishing Corporation

Fecha de publicación

2013

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/1288

Formato

application/pdf

Idioma

Inglés

Audiencia

Público en general

Sugerencia de citación

Alejandra Méndez-Hurtado, René Rangel-Méndez, Laura Yáñez-Espinosa, and Joel Flores, “Tolerance to Cadmium of Agave lechuguilla (Agavaceae) Seeds and Seedlings from Sites Contaminated with Heavy Metals,” The Scientific World Journal, vol. 2013, Article ID 167834, 11 pages, 2013. doi:10.1155/2013/167834

Repositorio Orígen

Repositorio IPICYT

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