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dc.contributor.authorLópez-Serrano, Lidia
dc.contributor.authorCanet-Sanchis, Guillermo
dc.contributor.authorVuletin Selak, Gabriela
dc.contributor.authorPenella, Consuelo
dc.contributor.authorSan Bautista, Alberto
dc.contributor.authorLópez-Galarza, Salvador
dc.contributor.authorCalatayud, Ángeles
dc.date.accessioned2020-01-28T12:37:15Z
dc.date.available2020-01-28T12:37:15Z
dc.date.issued2020es
dc.identifier.citationLópez-Serrano, L., Canet-Sanchis, G., Selak, G. V., Penella, C., San Bautista, A., López-Galarza, S., & Calatayud, Á. (2020). Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress. Plant Physiology and Biochemistry, 148, 207-219es
dc.identifier.issn0981-9428
dc.identifier.urihttp://hdl.handle.net/20.500.11939/6292
dc.description.abstractIn pepper crops, rootstocks that tolerate salt stress are not used because available commercial rootstocks offer limited profits. In this context, we obtained the hybrid NIBER®, a new salinity-tolerant rootstock that has been tested under real salinity field conditions for 3 years with 32%–80% higher yields than ungrafted pepper plants. This study aimed to set up the initial mechanisms involved in the salinity tolerance of grafted pepper plants using NIBER® as a rootstock to study root-shoot behavior, a basic requirement to develop efficient rootstocks. Gas exchange, Na+/K+, antioxidant capacity, nitrate reductase activity, ABA, proline, H2O2, phenols, MDA concentration and biomass were measured in ungrafted plants of cultivar Adige (A), self-grafted (A/A), grafted onto NIBER® (A/N) and reciprocal grafted plants (N/A), all exposed to 0 mM and 70 mM NaCl over a 10-day period. Salinity significantly and quickly decreased photosynthesis, stomatal conductance and nitrate reductase activity, but to lower extent in A/N plants compared to A, A/A and N/A. A/N plants showed decreases in the Na+/K+ ratio, ABA content and lipid peroxidation activity. This oxidative damage alleviation in A/N was probably due to an enhanced H2O2 level that activates antioxidant capacity to cope salinity stress, and acts as a signal molecule rather than a damaging one by contributing a major increase in phenols and, to a lesser extent, in proline concentration. These traits led to a minor impact on biomass in A/N plants under salinity conditions. Only the plants with the NIBER® rootstock controlled the scion by modulating responses to salinity.es
dc.language.isoenes
dc.publisherElsevieres
dc.subjectH2O2es
dc.titlePhysiological characterization of a pepper hybrid rootstock designed to cope with salinity stresses
dc.typearticlees
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes
dc.entidadIVIACentro de Citricultura y Producción Vegetales
dc.identifier.doi10.1016/j.plaphy.2020.01.016es
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0981942820300164es
dc.journal.issueNumber148es
dc.journal.titlePlant Physiology and Biochemistryes
dc.page.final219es
dc.page.initial207es
dc.relation.projectIDRTA2017-00030-C02es
dc.source.typeelectronicoes
dc.subject.agrisA Agriculturees
dc.subject.agrisF62 Plant physiology - Growth and developmentes
dc.subject.agrisF60 Plant physiology and biochemistryes
dc.subject.agrovocHorticulturees
dc.subject.agrovocPlant physiologyes
dc.subject.agrovocGraftinges
dc.subject.agrovocSalt stresses
dc.subject.agrovocPepperes
dc.subject.agrovocSalt tolerancees
dc.subject.agrovocAntioxidantses
dc.subject.agrovocPhotosynthesises
dc.subject.agrovocRootstockses
dc.type.hasVersionacceptedVersion


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