title: Evaluating wild grapevine tolerance to copper toxicity.
abstract: We evaluate copper tolerance and accumulation in Vitis vinifera ssp. sylvestris in populations from a copper contaminated site and an uncontaminated site, and in the grapevine rootstock "41B", investigating the effects of copper (0-23 mM) on growth, photosynthetic performance and mineral nutrient content. The highest Cu treatment induced nutrient imbalances and inhibited photosynthetic function, causing a drastic reduction in growth in the three study plants. Effective concentration was higher than 23 mM Cu in the wild grapevines and around 9 mM in the "41B" plants. The wild grapevine accessions studied controlled root Cu concentration more efficiently than is the case with the "41B" rootstock and must be considered Cu-tolerant. Wild grapevines from the Cu-contaminated site present certain physiological characteristics that make them relatively more suitable for exploitation in the genetic improvement of vines against conditions of excess Cu, compared to wild grapevine populations from uncontaminated sites.
authors.affiliation: Facultad de Biología, Universidad de Sevilla, P.O. Box 1095, 41080 Sevilla, Spain. Electronic address: cambrolle@us.es.
authors.forename: J
authors.initials: J
authors.lastname: Cambrollé
authors.affiliation: Instituto de Recursos Naturales y Agrobiología de Sevilla (C.S.I.C.), P.O. Box 1052, 41080 Sevilla, Spain.
authors.forename: J L
authors.initials: JL
authors.lastname: García
authors.affiliation: Facultad de Biología, Universidad de Sevilla, P.O. Box 1095, 41080 Sevilla, Spain.
authors.forename: M E
authors.initials: ME
authors.lastname: Figueroa
authors.affiliation: Instituto de Recursos Naturales y Agrobiología de Sevilla (C.S.I.C.), P.O. Box 1052, 41080 Sevilla, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Cantos
mesh_terms: D003300:Copper / Q000378:metabolism* / Q000633:toxicity*; D012989:Soil Pollutants / Q000378:metabolism* / Q000633:toxicity*; D013030:Spain; D027843:Vitis / Q000187:drug effects* / Q000378:metabolism*
chemical_list: D012989:Soil Pollutants; D003300:Copper
keywords: Copper; Tolerance; Toxicity; Wild grapevine