uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A meta-analysis of crop response patterns to nitrogen limitation for improved model representation
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Plant Ecology and Evolution.ORCID iD: 0000-0002-3632-9102
2019 (English)In: PLoS ONE, E-ISSN 1932-6203, Vol. 14, no 10, p. e0223508-e0223508Article in journal (Refereed) Published
Abstract [en]

The representation of carbon-nitrogen (N) interactions in global models of the natural or managed land surface remains an important knowledge gap. To improve global process-based models we require a better understanding of how N limitation affects photosynthesis and plant growth. Here we present the findings of a meta-analysis to quantitatively assess the impact of N limitation on source (photosynthate production) versus sink (photosynthate use) activity, based on 77 highly controlled experimental N availability studies on 11 crop species. Using meta-regressions, we find that it can be insufficient to represent N limitation in models merely as inhibiting carbon assimilation, because in crops complete N limitation more strongly influences leaf area expansion (-50%) than photosynthesis (-34%), while leaf starch is accumulating (+83%). Our analysis thus offers support for the hypothesis of sink limitation of photosynthesis and encourages the exploration of more sink-driven crop modelling approaches. We also show that leaf N concentration changes with N availability and that the allocation of N to Rubisco is reduced more strongly compared to other photosynthetic proteins at low N availability. Furthermore, our results suggest that different crop species show generally similar response patterns to N limitation, with the exception of leguminous crops, which respond differently. Our meta-analysis offers lessons for the improved depiction of N limitation in global terrestrial ecosystem models, as well as highlights knowledge gaps that need to be filled by future experimental studies on crop N limitation response.

Place, publisher, year, edition, pages
Public Library of Science , 2019. Vol. 14, no 10, p. e0223508-e0223508
National Category
Botany
Identifiers
URN: urn:nbn:se:uu:diva-397697DOI: 10.1371/journal.pone.0223508OAI: oai:DiVA.org:uu-397697DiVA, id: diva2:1372393
Note

31622350[pmid]; PMC6797162[pmcid]; PONE-D-19-13317[PII]

Available from: 2019-11-22 Created: 2019-11-22 Last updated: 2020-01-29Bibliographically approved

Open Access in DiVA

fulltext(1824 kB)5 downloads
File information
File name FULLTEXT01.pdfFile size 1824 kBChecksum SHA-512
5831cf2136a4aedc47cda8c82612c334c60a1085e80bd12bbdab3448b7651a3b1cdab430754715b9fe29ef7f5b93a526279190b1d9edc99ce0681de26d15ca57
Type fulltextMimetype application/pdf

Other links

Publisher's full texthttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0223508

Authority records BETA

Granath, Gustaf

Search in DiVA

By author/editor
Granath, Gustaf
By organisation
Plant Ecology and Evolution
In the same journal
PLoS ONE
Botany

Search outside of DiVA

GoogleGoogle Scholar
Total: 5 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 7 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf