Below-ground plant-soil interactions affecting adaptations of rice to iron toxicity

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dc.contributor.authorKirk, Guy J. D.
dc.contributor.authorManwaring, Hanna R.
dc.contributor.authorUeda, Yoshiaki
dc.contributor.authorSemwal, Vimal K.
dc.contributor.authorWissuwa, Matthias
dc.date.accessioned2021-11-02T16:30:27Z
dc.date.available2021-11-02T16:30:27Z
dc.date.issued2021-10-09
dc.description.abstractIron toxicity is a major constraint to rice production, particularly in highly weathered soils of inland valleys in sub-Saharan Africa where the rice growing area is rapidly expanding. There is wide variation in tolerance of iron toxicity in the rice germplasm. However, introgression of tolerance traits into high-yielding germplasm has been slow owing to the complexity of the tolerance mechanisms and large genotype-by-environment effects. We review current understanding of tolerance mechanisms, particularly those involving below-ground plant–soil interactions. Until now these have been less studied than above-ground mechanisms. We cover processes in the rhizosphere linked to exclusion of toxic ferrous iron by oxidation, and resulting effects on the mobility of nutrient ions. We also cover the molecular physiology of below-ground processes controlling iron retention in roots and root-shoot transport, and also plant iron sensing. We conclude that future breeding programmes should be based on well-characterized molecular markers for iron toxicity tolerance traits. To successfully identify such markers, the complex tolerance response should be broken down into its components based on understanding of tolerance mechanisms, and tailored screening methods should be developed for individual mechanisms.en_UK
dc.identifier.citationKirk G, Manwaring H, Ueda Y, et al., (2022) Below-ground plant-soil interactions affecting adaptations of rice to iron toxicity. Plant, Cell and Environment, Volume 45, Issue 3, Special Issue: Root phenotypes for the future, March 2022, pp. 705-718en_UK
dc.identifier.issn0140-7791
dc.identifier.urihttps://doi.org/10.1111/pce.14199
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/17228
dc.language.isoenen_UK
dc.publisherWileyen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectrice rhizosphereen_UK
dc.subjectroot-soil interfaceen_UK
dc.subjectstress tolerance markersen_UK
dc.subjectsubmerged paddy soilsen_UK
dc.titleBelow-ground plant-soil interactions affecting adaptations of rice to iron toxicityen_UK
dc.typeArticleen_UK

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