uu.seUppsala universitets publikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
A meta-analysis of crop response patterns to nitrogen limitation for improved model representation
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för ekologi och genetik, Växtekologi och evolution.ORCID-id: 0000-0002-3632-9102
2019 (Engelska)Ingår i: PLoS ONE, E-ISSN 1932-6203, Vol. 14, nr 10, s. e0223508-e0223508Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
Public Library of Science , 2019. Vol. 14, nr 10, s. e0223508-e0223508
Nationell ämneskategori
Botanik
Identifikatorer
URN: urn:nbn:se:uu:diva-397697DOI: 10.1371/journal.pone.0223508OAI: oai:DiVA.org:uu-397697DiVA, id: diva2:1372393
Anmärkning

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

Tillgänglig från: 2019-11-22 Skapad: 2019-11-22 Senast uppdaterad: 2020-01-29Bibliografiskt granskad

Open Access i DiVA

fulltext(1824 kB)5 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 1824 kBChecksumma SHA-512
5831cf2136a4aedc47cda8c82612c334c60a1085e80bd12bbdab3448b7651a3b1cdab430754715b9fe29ef7f5b93a526279190b1d9edc99ce0681de26d15ca57
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltexthttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0223508

Personposter BETA

Granath, Gustaf

Sök vidare i DiVA

Av författaren/redaktören
Granath, Gustaf
Av organisationen
Växtekologi och evolution
I samma tidskrift
PLoS ONE
Botanik

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 5 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 7 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf