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dc.contributor.author
Prado, Carolina del Valle
dc.contributor.author
Rosa, Mariana Daniela
dc.contributor.author
Pagano, Eduardo
dc.contributor.author
Prado, Fernando Eduardo
dc.date.available
2016-08-16T13:21:22Z
dc.date.issued
2013-03
dc.identifier.citation
Prado, Carolina del Valle; Rosa, Mariana Daniela; Pagano, Eduardo; Prado, Fernando Eduardo; Metabolic interconnectivity among alternative respiration, residual respiration, carbohydrates and phenolics in leaves of Salvinia minima exposed to Cr(VI); Elsevier; Environmental and Experimental Botany; 87; 3-2013; 32-38
dc.identifier.issn
0098-8472
dc.identifier.uri
http://hdl.handle.net/11336/7162
dc.description.abstract
Floating and submerged leaves of the aquatic fern Salvinia minima were used to analyze a metabolic interconnectivity among mitochondrial alternative respiration, residual respiration (Rresp), carbohydrate metabolism and soluble phenolics (SP) accumulation occurring under Cr(VI) stress. Treatment with Cr enhanced alternative pathway capacity (APcap) and (Rresp) in both leaf types. APcap/Tresp ratio revealed an increasing relative contribution of the alternative respiration to total respiration rate under Cr(VI) treatment. Sucrose content increased in Cr-treated leaves, but glucose and starch decreased. Enzyme profile showed that sucrose synthase (SS) rather than soluble acid invertase (AI) seems to be involved in sucrose metabolism of Cr-treated plants. Accumulation of SP showed a positive correlation with both APcap and Rresp in floating leaves. Decreases of SP in submerged leaves can be explained by an increased synthesis of polymerized phenolics. Results provide important new insights about influence of alternative and residual respirations on the synthesis of phenylpropanoid-derivative compounds. This work could also represent the first communication about involvement of the Rresp in defence mechanism of S. minima against Cr(VI) toxicity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Cr(Vi)
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Alternative Pathway Capacity
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Residual Respiration
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Carbohydrates
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Enzymes
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Phenolics
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Otros Tópicos Biológicos
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Metabolic interconnectivity among alternative respiration, residual respiration, carbohydrates and phenolics in leaves of Salvinia minima exposed to Cr(VI)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-08-11T19:36:19Z
dc.journal.volume
87
dc.journal.pagination
32-38
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Prado, Carolina del Valle. Universidad Nacional de Tucuman. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Catedra de Fisiologia Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina
dc.description.fil
Fil: Rosa, Mariana Daniela. Universidad Nacional de Tucuman. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Catedra de Fisiologia Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina
dc.description.fil
Fil: Pagano, Eduardo. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Biologia Aplicada y Alimentos; Argentina
dc.description.fil
Fil: Prado, Fernando Eduardo. Universidad Nacional de Tucuman. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Catedra de Fisiologia Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina
dc.journal.title
Environmental and Experimental Botany
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0098847212002018
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.envexpbot.2012.10.005
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.envexpbot.2012.10.005


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