oru.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Epidermal UV-A absorbance and whole leaf flavonoid composition in pea respond more to solar blue light than solar UV radiation
Plant Biology Division, Department of Biosciences, University of Helsinki, , Helsinki, Finland.
Valoya Ltd, , Helsinki, Finland.
Viikki Metabolomics Unit, Department of Biosciences, University of Helsinki, , Helsinki, Finland.
Plant Biology Division, Department of Biosciences, University of Helsinki, , Helsinki, Finland. (Molecular Biochemistry)ORCID-id: 0000-0002-9233-7254
Vise andre og tillknytning
2015 (engelsk)Inngår i: Plant, Cell and Environment, ISSN 0140-7791, E-ISSN 1365-3040, Vol. 38, nr 5, s. 941-952Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Plants synthesize phenolic compounds in response to certain environmental signals or stresses. One large group of phenolics, flavonoids, is considered particularly responsive to ultraviolet (UV) radiation. However, here we demonstrate that solar blue light stimulates flavonoid biosynthesis in the absence of UV‐A and UV‐B radiation. We grew pea plants (Pisum sativum cv. Meteor) outdoors, in Finland during the summer, under five types of filters differing in their spectral transmittance. These filters were used to (1) attenuate UV‐B; (2) attenuate UV‐B and UV‐A < 370 nm; (3) attenuate UV‐B and UV‐A; (4) attenuate UV‐B, UV‐A and blue light; and (5) as a control not attenuating these wavebands. Attenuation of blue light significantly reduced the flavonoid content in leaf adaxial epidermis and reduced the whole‐leaf concentrations of quercetin derivatives relative to kaempferol derivatives. In contrast, UV‐B responses were not significant. These results show that pea plants regulate epidermal UV‐A absorbance and accumulation of individual flavonoids by perceiving complex radiation signals that extend into the visible region of the solar spectrum. Furthermore, solar blue light instead of solar UV‐B radiation can be the main regulator of phenolic compound accumulation in plants that germinate and develop outdoors.

sted, utgiver, år, opplag, sider
Blackwell Publishing, 2015. Vol. 38, nr 5, s. 941-952
Emneord [en]
growth, kaempferol, phenolic compounds, quercetin, solar radiation
HSV kategori
Identifikatorer
URN: urn:nbn:se:oru:diva-72402DOI: 10.1111/pce.12403ISI: 000353898400009PubMedID: 25040832Scopus ID: 2-s2.0-84927715964OAI: oai:DiVA.org:oru-72402DiVA, id: diva2:1288044
Forskningsfinansiär
Academy of Finland, 252548, 266523
Merknad

Funding agencies:

Suomen Biologian Seura Vanamo

Societas pro Fauna et Flora Fennica

Tilgjengelig fra: 2019-02-12 Laget: 2019-02-12 Sist oppdatert: 2019-03-05bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstPubMedScopus

Personposter BETA

Morales, Luis Orlando

Søk i DiVA

Av forfatter/redaktør
Morales, Luis Orlando
I samme tidsskrift
Plant, Cell and Environment

Søk utenfor DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric

doi
pubmed
urn-nbn
Totalt: 106 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf