Article ID Journal Published Year Pages File Type
2826018 Trends in Plant Science 2015 8 Pages PDF
Abstract

•Plants that use a phosphorus (P)-mobilising strategy based on carboxylate release 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.•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.

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.

Related Topics
Life Sciences Agricultural and Biological Sciences Plant Science
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