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dc.contributor.authorMartínez-Cuenca, Mary-Rus
dc.contributor.authorPrimo-Capella, Amparo
dc.contributor.authorForner-Giner, María A.
dc.date.accessioned2021-11-09T15:05:59Z
dc.date.available2021-11-09T15:05:59Z
dc.date.issued2021es
dc.identifier.citationMartínez-Cuenca, M. R., Primo-Capella, A. & Forner-Giner, M.Á. (2021) Screening of ‘King’ Mandarin Hybrids as Tolerant Citrus Rootstocks to Flooding Stress. Horticulturae, 7(10), 388.es
dc.identifier.issn2311-7524
dc.identifier.urihttp://hdl.handle.net/20.500.11939/7742
dc.description.abstractThis work compares the tolerance to long-term anoxia conditions (35 days) of five new citrus ‘King’ mandarin (Citrus nobilis L. Lour) Poncirus trifoliata ((L.) Raf.) hybrids (named 0501XX) and Carrizo citrange (CC, Citrus sinensis (L.) Osb. Poncirus trifoliata (L.) Raf.), the widely used citrus rootstock in Spain. Growth parameters, chlorophyll concentration, gas exchange and fluorescence parameters, water relations in leaves, abscisic acid (ABA) concentration, and PIP1 and PIP2 gene expressions were assessed. With a waterlogging treatment, the root system biomass of most hybrids went down, and the chlorophyll a and b concentrations substantially dropped. The net CO2 assimilation rates (An) and stomatal conductance (gs) lowered significantly due to flooding, and the transpiration rate (E) closely paralleled the changes in gs. The leaf water and osmotic potentials significantly increased in most 0501 hybrids. As a trend, flooding stress lowered the ABA concentration in roots from most hybrids, but increased in the leaves of CC, 05019 and 050110. Under the control treatment (Ct) conditions, most 0501 hybrids showed higher PIP1 and PIP2 expressions than the control rootstock CC, but were impaired due to the flooding conditions in 05019 and 050110. From this study, we conclude that 0501 genotypes develop some adaptive responses in plants against flooding stress such as (1) stomata closure to prevent water loss likely mediated by ABA levels, and (2) enhanced water and osmotic potentials and the downregulation of those genes regulating aquaporin channels to maintain water relations in plants. Although these traits seemed especially relevant in hybrids 050110 and 050125, further experiments must be done to determine their behavior under field conditions, particularly their influence on commercial varieties and their suitability as flooding-tolerant hybrids for replacing CC, one of the main genotypes that is widely used as a citrus rootstock in Spain, under these conditionses
dc.language.isoenes
dc.publisherMDPIes
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subjectChlorophyll concentrationes
dc.subjectCitrus hybridses
dc.subjectGas exchange parameterses
dc.subjectPIPses
dc.titleScreening of ‘King’ Mandarin Hybrids as Tolerant Citrus Rootstocks to Flooding Stresses
dc.typearticlees
dc.authorAddressforner_margin@gva.eses
dc.entidadIVIACentro de Citricultura y Producción Vegetales
dc.identifier.doi10.3390/horticulturae7100388es
dc.identifier.urlhttps://www.mdpi.com/2311-7524/7/10/388es
dc.journal.issueNumber10es
dc.journal.titleHorticulturaees
dc.journal.volumeNumber7es
dc.page.final388es
dc.page.initial388es
dc.relation.projectIDThis study was cofunded by the Ministerio de Ciencia e Innovación (RTI2018-098379-R-I00) and by the European Union through the European Regional Development Fund (ERDF) of the Generalitat Valenciana 2014–2020 (IVIA-51913).es
dc.rights.accessRightsopenAccesses
dc.source.typeelectronicoes
dc.subject.agrisF30 Plant genetics and breedinges
dc.subject.agrisF60 Plant physiology and biochemistryes
dc.subject.agrisF06 Irrigationes
dc.subject.agrisF61 Plant physiology - Nutritiones
dc.subject.agrovocAbscisic acides
dc.subject.agrovocFluorescencees
dc.subject.agrovocOsmotic potentiales
dc.subject.agrovocWater potentiales
dc.subject.agrovocWaterlogginges
dc.type.hasVersionpublishedVersiones


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