title: Are commercial sweet cherry rootstocks adapted to climate change? Short-term waterlogging and CO2effects on sweet cherry cv. 'Burlat'.
abstract: High CO2is able to ameliorate some negative effects due to climate change and intensify others. This study involves the sweet cherry (Prunus avium) cultivar 'Burlat' grafted on the 'Mariana 2624', 'Adara' and 'LC 52' rootstocks. In a climate chamber at two CO2concentrations, ambient (400 µmol mol-1) and elevated (800 µmol mol-1), the plants were submitted to waterlogging for 7 d, followed by 7 d of recovery after drainage. Waterlogging drastically decreased the rate of photosynthesis, significantly endangering plant survival, particularly for the 'LC 52' and 'Adara' rootstocks. 'Mariana 2624' was also clearly affected by waterlogging that increased lipid peroxidation and the Cl-and SO42-concentrations in all the studied plants. Nevertheless, CO2was able to overcome this reduction in photosynthesis, augmenting growth, increasing soluble sugars and starch, raising turgor and regulating the concentrations of Cl-and SO42-, while lowering the NO3-concentration in leaves of all the studied rootstocks. In concordance with these results, the proline levels indicated a more intense stress at control CO2than at high CO2for waterlogged plants. 'Mariana 2624' was more resistant to waterlogging than 'Adara', and both were more resistant than 'LC 52' in control CO2conditions; this clearly enhanced the chance of survival under hypoxia.
authors.affiliation: Departamento de Hortofruticultura, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), 30150, Murcia, Spain.
authors.forename: Margarita
authors.identifier: 0000-0003-1005-3280
authors.initials: M
authors.lastname: Pérez-Jiménez
authors.affiliation: Departamento de Hortofruticultura, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), 30150, Murcia, Spain.
authors.forename: María
authors.initials: M
authors.lastname: Hernández-Munuera
authors.affiliation: Departamento de Hortofruticultura, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), 30150, Murcia, Spain.
authors.forename: M Carmen
authors.initials: MC
authors.lastname: Piñero
authors.affiliation: Departamento de Hortofruticultura, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), 30150, Murcia, Spain.
authors.forename: Gregorio
authors.initials: G
authors.lastname: López-Ortega
authors.affiliation: Departamento de Hortofruticultura, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), 30150, Murcia, Spain.
authors.forename: Francisco M
authors.initials: FM
authors.lastname: Del Amor
mesh_terms: D000222:Adaptation, Physiological; D002245:Carbon Dioxide / Q000502:physiology*; D057231:Climate Change; D055868:Floods; D010100:Oxygen / Q000378:metabolism*; D010788:Photosynthesis / Q000502:physiology; D018515:Plant Leaves / Q000502:physiology; D018517:Plant Roots / Q000502:physiology; D000068220:Prunus avium / Q000502:physiology*; D013312:Stress, Physiological; D013997:Time Factors; D014867:Water / Q000502:physiology*
chemical_list: D014867:Water; D002245:Carbon Dioxide; D010100:Oxygen
keywords: Prunus avium; flood; hypoxia; nitrate; photosynthesis