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Effect of cadmium and calcium treatments on phytochelatin and glutathione levels in citrus plants
dc.contributor.author | López Climent, María Fernanda | |
dc.contributor.author | Arbona, Vicent | |
dc.contributor.author | Perez-Clemente, Rosa Maria | |
dc.contributor.author | I Zandalinas, Sara | |
dc.contributor.author | Gomez-Cadenas, Aurelio | |
dc.date.accessioned | 2015-07-16T09:26:41Z | |
dc.date.available | 2015-07-16T09:26:41Z | |
dc.date.issued | 2014 | |
dc.identifier.issn | 1435-8603 | |
dc.identifier.issn | 1438-8677 | |
dc.identifier.uri | http://hdl.handle.net/10234/127767 | |
dc.description.abstract | Industry residues, phosphate fertilisers and wastewater as a source of irrigation have considerably increased levels of heavy metals in the soil, mainly cadmium (Cd2+). To test the effects of a calcium (Ca2+) treatment on Cd2+ accumulation and plant tolerance to this heavy metal, plants of two citrus genotypes, Cleopatra mandarin (CM) and Carrizo citrange (CC), were watered with increasing concentrations of Cd2+, and phytochelatin (PC) and glutathione (GSH) content were measured. Both genotypes were able to synthesise PCs in response to heavy metal intoxication, although CM seems to be a better Cd2+ excluder than CC. However, data indicate that CC plants had a higher capacity for regenerating GSH than CM plants. In this context, the effects of Ca2+ treatment on Cd2+ accumulation, plant survival and PC, GSH and oxidised glutathione (GSSG) content were assessed. Data indicate that treatment with Ca2+ had two positive effects on citrus physiology: it reduced Cd+2 uptake into roots and also increased GSH content (even in the absence of Cd2+). Overall, the data indicate that although Cd2+ exclusion is a powerful mechanism to avoid heavy metal build-up into photosynthetic organs, the capacity to maintain optimum GSH levels to feed PC biosynthesis could also be an important factor in stress tolerance. | ca_CA |
dc.format.extent | 11 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Wiley | ca_CA |
dc.relation.isPartOf | Plant Biology 16 (2014) 79–87 | ca_CA |
dc.rights | © 2013 German Botanical Society and The Royal Botanical Society of the Netherlands. "This is the accepted version of the following article: López-Climent, M. F., Arbona, V., Pérez-Clemente, R. M., Zandalinas, S. I., Gómez-Cadenas, A. (2014), Effect of cadmium and calcium treatments on phytochelatin and glutathione levels in citrus plants. Plant Biology, 16: 79–87. doi: 10.1111/plb.12006, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/plb.12006/pdf | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Abiotic stress | ca_CA |
dc.subject | cadmium toxicity | ca_CA |
dc.subject | heavy metal | ca_CA |
dc.subject | palliative treatment | ca_CA |
dc.title | Effect of cadmium and calcium treatments on phytochelatin and glutathione levels in citrus plants | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1111/plb.12006 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | http://onlinelibrary.wiley.com/doi/10.1111/plb.12006/pdf | ca_CA |
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