Rice increases phosphorus uptake in strongly sorbing soils by intra-root facilitation

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dc.contributor.authorKuppe, Christian W.
dc.contributor.authorKirk, Guy J. D.
dc.contributor.authorWissuwa, Matthias
dc.contributor.authorPostma, Johannes A.
dc.date.accessioned2022-03-08T14:56:36Z
dc.date.available2022-03-08T14:56:36Z
dc.date.issued2022-02-09
dc.description.abstractUpland rice (Oryza sativa) is adapted to strongly phosphorus (P) sorbing soils. The mechanisms underlying P acquisition, however, are not well understood, and models typically underestimate uptake. This complicates root ideotype development and trait-based selection for further improvement. We present a novel model, which correctly simulates the P uptake by a P-efficient rice genotype measured over 48 days of growth. The model represents root morphology at the local rhizosphere scale, including root hairs and fine S-type laterals. It simulates fast- and slowly reacting soil P and the P-solubilizing effect of root-induced pH changes in the soil. Simulations predict that the zone of pH changes and P solubilization around a root spreads further into the soil than the zone of P depletion. A root needs to place laterals outside its depletion- but inside its solubilization zone to maximize P uptake. S-type laterals, which are short but hairy, appear to be the key root structures to achieve that. Thus, thicker roots facilitate the P uptake by fine lateral roots. Uptake can be enhanced through longer root hairs and greater root length density but was less sensitive to total root length and root class proportions.en_UK
dc.description.sponsorshipBiotechnology and Biological Sciences Research Council (BBSRC): BB/R020388/1en_UK
dc.identifier.citationKuppe CW, Kirk GJ, Wissuwa M, Postma JA. (2022) Rice increases phosphorus uptake in strongly sorbing soils by intra-root facilitation, Plant, Cell and Environment, Volume 45, Issue 3, February 2022, pp. 884-899en_UK
dc.identifier.eissn1365-3040
dc.identifier.issn0140-7791
dc.identifier.urihttps://doi.org/10.1111/pce.14285
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/17633
dc.language.isoenen_UK
dc.publisherWileyen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectcoupled transport modelen_UK
dc.subjectphosphateen_UK
dc.subjectphosphorus uptake efficiencyen_UK
dc.subjectrhizosphere pHen_UK
dc.subjectslow sorptionen_UK
dc.subjectsolubilizationen_UK
dc.subjectupscalingen_UK
dc.titleRice increases phosphorus uptake in strongly sorbing soils by intra-root facilitationen_UK
dc.typeArticleen_UK

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