title: Leaf manganese accumulation and phosphorus-acquisition efficiency.
abstract: Plants that deploy a phosphorus (P)-mobilising strategy based on the release of carboxylates tend to have high leaf manganese concentrations ([Mn]). This occurs because the carboxylates mobilise not only soil inorganic and organic P, but also a range of micronutrients, including Mn. Concentrations of most other micronutrients increase to a small extent, but Mn accumulates to significant levels, even when plants grow in soil with low concentrations of exchangeable Mn availability. Here, we propose that leaf [Mn] can be used to select for genotypes that are more efficient at acquiring P when soil P availability is low. Likewise, leaf [Mn] can be used to screen for belowground functional traits related to nutrient-acquisition strategies among species in low-P habitats.
authors.affiliation: School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia. Electronic address: hans.lambers@uwa.edu.au.
authors.forename: Hans
authors.initials: H
authors.lastname: Lambers
authors.affiliation: School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia.
authors.forename: Patrick E
authors.initials: PE
authors.lastname: Hayes
authors.affiliation: School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia.
authors.forename: Etienne
authors.initials: E
authors.lastname: Laliberté
authors.affiliation: School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia; Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Rua Monteiro Lobato 255, Campinas 13083-862, Brazil.
authors.forename: Rafael S
authors.initials: RS
authors.lastname: Oliveira
authors.affiliation: Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancon, Republic of Panama; School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia.
authors.forename: Benjamin L
authors.initials: BL
authors.lastname: Turner
mesh_terms: D002264:Carboxylic Acids / Q000378:metabolism; D017753:Ecosystem; D005838:Genotype; D008345:Manganese / Q000378:metabolism*; D010758:Phosphorus / Q000378:metabolism*; D018515:Plant Leaves / Q000378:metabolism; D018521:Plant Physiological Phenomena / Q000235:genetics*; D012987:Soil / Q000737:chemistry*
chemical_list: D002264:Carboxylic Acids; D012987:Soil; D010758:Phosphorus; D008345:Manganese
keywords: carboxylates; exudation; manganese; phosphorus; phosphorus-acquisition efficiency