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  • Shevela, DmitriyUmeå universitet,Kemiska institutionen,Centre for Organelle Research, Faculty of Science and Technology, University of Stavanger, Stavanger, Norway,Univ Stavanger, Fac Sci & Technol, Ctr Organelle Res, N-4036 Stavanger, Norway.;Umea Univ, Chem Biol Ctr, Dept Chem, S-90187 Umea, Sweden. (författare)

Biogenesis of water splitting by photosystem II during de-etiolation of barley (Hordeum vulgare L.)

  • Artikel/kapitelEngelska2016

Förlag, utgivningsår, omfång ...

  • 2016-04-23
  • John Wiley & Sons,2016
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:umu-123557
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-123557URI
  • https://doi.org/10.1111/pce.12719DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-514080URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Etioplasts lack thylakoid membranes and photosystem complexes. Light triggers differentiation of etioplasts into mature chloroplasts, and photosystem complexes assemble in parallel with thylakoid membrane development. Plastids isolated at various time points of de-etiolation are ideal to study the kinetic biogenesis of photosystem complexes during chloroplast development. Here, we investigated the chronology of photosystem II (PSII) biogenesis by monitoring assembly status of chlorophyll-binding protein complexes and development of water splitting via O2 production in plastids (etiochloroplasts) isolated during de-etiolation of barley (Hordeum vulgare L.). Assembly of PSII monomers, dimers and complexes binding outer light-harvesting antenna [PSII-light-harvesting complex II (LHCII) supercomplexes] was identified after 1, 2 and 4 h of de-etiolation, respectively. Water splitting was detected in parallel with assembly of PSII monomers, and its development correlated with an increase of bound Mn in the samples. After 4 h of de-etiolation, etiochloroplasts revealed the same water-splitting efficiency as mature chloroplasts. We conclude that the capability of PSII to split water during de-etiolation precedes assembly of the PSII-LHCII supercomplexes. Taken together, data show a rapid establishment of water-splitting activity during etioplast-to-chloroplast transition and emphasize that assembly of the functional water-splitting site of PSII is not the rate-limiting step in the formation of photoactive thylakoid membranes.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Arnold, JanineUniv Stavanger, Fac Sci & Technol, Ctr Organelle Res, N-4036 Stavanger, Norway. (författare)
  • Reisinger, VeronikaUniv Stavanger, Fac Sci & Technol, Ctr Organelle Res, N-4036 Stavanger, Norway. (författare)
  • Berends, Hans-MartinUmeå universitet,Kemiska institutionen,Umea Univ, Chem Biol Ctr, Dept Chem, S-90187 Umea, Sweden.(Swepub:umu)habe0057 (författare)
  • Kmiec, KarolUniv Stavanger, Fac Sci & Technol, Ctr Organelle Res, N-4036 Stavanger, Norway. (författare)
  • Koroidov, SergeyUmeå universitet,Kemiska institutionen,PULSE Institute, SLAC National Accelerator Laboratory, Stanford University, Stanford, CA, USA,Umea Univ, Chem Biol Ctr, Dept Chem, S-90187 Umea, Sweden.;Stanford Univ, SLAC Natl Accelerator Lab, PULSE Inst, Stanford, CA 94305 USA.(Swepub:umu)seko0001 (författare)
  • Bue, Ann KristinUniv Stavanger, Fac Sci & Technol, Ctr Organelle Res, N-4036 Stavanger, Norway. (författare)
  • Messinger, JohannesUmeå universitet,Kemiska institutionen,Umea Univ, Chem Biol Ctr, Dept Chem, S-90187 Umea, Sweden.(Swepub:uu)johme269 (författare)
  • Eichacker, Lutz A.Univ Stavanger, Fac Sci & Technol, Ctr Organelle Res, N-4036 Stavanger, Norway. (författare)
  • Umeå universitetKemiska institutionen (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Plant, Cell and Environment: John Wiley & Sons39:7, s. 1524-15360140-77911365-3040

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