Soil CO2 venting as one of the mechanisms for tolerance of Zn deficiency by rice in flooded soils

Simple item page
dc.contributor.authorAffholder, Marie-Cecile
dc.contributor.authorWeiss, Dominik J.
dc.contributor.authorWissuwa, Matthias
dc.contributor.authorJohnson-Beebout, Sarah E.
dc.contributor.authorKirk, Guy J. D.
dc.date.accessioned2017-10-04T09:47:56Z
dc.date.available2017-10-04T09:47:56Z
dc.date.issued2017-09-12
dc.description.abstractWe sought to explain rice (Oryza sativa) genotype differences in tolerance of zinc (Zn) deficiency in flooded paddy soils and the counter-intuitive observation, made in earlier field experiments, that Zn uptake per plant increases with increasing planting density. We grew tolerant and intolerant genotypes in a Zn-deficient flooded soil at high and low planting densities, and found (a) plant Zn concentrations and growth increased with planting density and more so in the tolerant genotype, whereas the concentrations of other nutrients decreased, indicating a specific effect on Zn uptake; (b) the effects of planting density and genotype on Zn uptake could only be explained if the plants induced changes in the soil to make Zn more soluble; and (c) the genotype and planting density effects were both associated with decreases in dissolved CO2 in the rhizosphere soil solution and resulting increases in pH. We suggest the increases in pH caused solubilisation of soil Zn by dissolution of alkali-soluble, Zn-complexing organic ligands from soil organic matter. We conclude that differences in venting of soil CO2 through root aerenchyma were responsible for the genotype and planting density effects.en_UK
dc.identifier.citationAffholder MC, Weiss DJ, Wissuwa M, et al., (2017) Soil CO2 venting as one of the mechanisms for tolerance of Zn deficiency by rice in flooded soils. Plant, Cell and Environment, Volume 40, Issue 12, December 2017, pp. 3018-3030en_UK
dc.identifier.issn0140-7791
dc.identifier.urihttp://dx.doi.org/10.1111/pce.13069
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/12587
dc.language.isoenen_UK
dc.publisherWileyen_UK
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectDissolved CO2en_UK
dc.subjectGenotype nutrient uptake differencesen_UK
dc.subjectRhizosphere pHen_UK
dc.subjectZinc solubilisationen_UK
dc.titleSoil CO2 venting as one of the mechanisms for tolerance of Zn deficiency by rice in flooded soilsen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Soil_CO2_venting-Zn_deficiency_by_rice_in_flooded_soils-2017.pdf
Size:
872.09 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.79 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)