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dc.title Inoculation with mycorrhizal fungi modifies praline metabolism and increases chromium tolerance in pepper plants (Capsicum annuum L.) en
dc.type Artículo es
dcterms.abstract In general, heavy metals interfere with several physiological processes and reduce plant growth. Plants naturally establish symbiotic associations with soil microorganisms, such as mycorrhizal fungi. The aim of this research was to determine if inoculation with mycorrhizal fungi increases tolerance to Cr, evidenced by growth and biochemical parameters and the effect on roots membranes in Capsicum annum. Plants were either non-inoculated or inoculated with Glomus mosseae or Glomus intraradices, and grown in the presence of different concentration of Cr (K2Cr2O4) in soil. Pepper plants grown without Cr behaved as mycotrophic species. At the highest concentration (200 mM K2Cr2O4), Cr reduced root colonization by G. mosseae or G. intraradices (to 23 and 20% respectively). Moderate and high concentrations of Cr reduced all growth parameters. The interaction of inoculation and Cr increased leaf chlorophyll and proline content while reduced the leaf protein and root proline content. Carotenoid content was not affected by treatments. High Cr concentrations increased significantly electrolytes leakage in roots, either non-inoculated or inoculated plants. At the highest Cr concentration, inoculated plants had double the biomass of non-inoculated plants. Cr content in roots of inoculated plants was significantly higher than in non-inoculated plants. Chromium accumulation was low in leaves and showed no differences between treatments. Mycorrhization increased pepper plant tolerance to Cr in the soil, modifying proline metabolism to assure a more efficient response. en
dcterms.extent p. 15-25 es
dcterms.issued 2011
dcterms.language Inglés es
dcterms.license Attribution 4.0 International (BY 4.0) es
dcterms.relation Informe científico de investigador: Beltrano, José (2011-2012) es
dcterms.subject Capsicum annuum es
dcterms.subject Glomus es
dcterms.subject Metales Pesados es
dcterms.subject Electrólitos es
cic.version info:eu-repo/semantics/publishedVersion es Beltrano, José es Ronco, Marta es Ruscitti, Marcela es Arango, María es
cic.lugarDesarrollo Universidad Nacional de La Plata es
dcterms.subject.materia Ciencias Agrícolas es
dcterms.identifier.url Enlace externo es
dcterms.isPartOf.issue vol. 23, no. 1 es
dcterms.isPartOf.series Brazilian Journal of Plant Physiology es
cic.isPeerReviewed true es
cic.isFulltext true es


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