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

dc.contributor.authorMéndez Hurtado, Carmen Alejandra
dc.contributor.authorRangel Méndez, José René
dc.contributor.authorYáñez Espinosa, Laura
dc.contributor.authorFlores Rivas, Joel David
dc.date.accessioned2018-03-23T19:26:02Z
dc.date.available2018-03-23T19:26:02Z
dc.date.issued2013
dc.identifier.citationAlejandra 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
dc.identifier.urihttp://hdl.handle.net/11627/3655
dc.description.abstract"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."
dc.publisherHindawi
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.classificationCIENCIAS TECNOLÓGICAS
dc.titleTolerance to cadmium of agave lechuguilla (agavaceae) seeds and seedlings from sites contaminated with heavy metals
dc.typearticle
dc.identifier.doihttp://dx.doi.org/10.1155/2013/167834
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional