Photoinhibition in vivo and in vitro involves weakly coupled chlorophyll-protein complexes (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Photoinhibition in vivo and in vitro involves weakly coupled chlorophyll-protein complexes (Articolo in rivista) (literal)

Anno

• 2002-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1562/0031-8655(2002)075<0613:PIVAIV>2.0.CO;2 (literal)

Alternative label

• Santabarbara, S; Cazzalini, I; Rivadossi, A; Garlaschi, FM; Zucchelli, G; Jennings, RC (2002)
  Photoinhibition in vivo and in vitro involves weakly coupled chlorophyll-protein complexes
  in Photochemistry and photobiology
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Santabarbara, S; Cazzalini, I; Rivadossi, A; Garlaschi, FM; Zucchelli, G; Jennings, RC (literal)

Pagina inizio

• 613 (literal)

Pagina fine

• 618 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 75 (literal)

Rivista

• Photochemistry and photobiology (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 6 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 6 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• University of Milan (literal)

Titolo

• Photoinhibition in vivo and in vitro involves weakly coupled chlorophyll-protein complexes (literal)

Abstract

• In the present study the analysis of the relation between the excited state population in the photosystem 11 (PSII) antenna and photoinactivation has been extended from an in vitro system, isolated thylakoids, to an in vivo system, Chlamydomonas reinhardtii cells. The results indicate that the excited state quenching by an added singlet quencher induces maximal protection against photoinhibition of about 30% of that expected on the basis of the observed light intensity-treatment time reciprocity rule. Similar results, obtained previously with thylakoids, have been interpreted in terms of damaged or incorrectly assembled complexes that play an important role in photoinhibition in the thylakoid membranes (Santabarbara, S., K. Neverov, F. M. Garlaschi, G. Zucchelli and R. C. Jennings [2001] Involvement of uncoupled antenna chlorophylls in photoinhibition in thylakoids. FEBS Lett. 491, 109-113.). In an attempt to better define this aspect, the photoinhibition action spectra were determined for mutant barley thylakoids, lacking the chlorophyll (Chl) a-b complexes of the outer antenna, and for its wild type. The results indicate that in both systems the action spectra are significantly blueshifted (2-4 nm) and are broader than the PSII absorption in the membranes. These data are interpreted in terms of a heterogeneous population of outer and inner antenna pigment-protein complexes that contain significant levels of uncoupled Chl. (literal)

Prodotto di

• Bioenergetica e Biologia molecolare delle piante (MD.P01.005.001) (Modulo)
• Istituto di biofisica (IBF) (Istituto)

Autore CNR

• GIUSEPPE ZUCCHELLI (Unità di personale interno)
• ROBERT JENNINGS (Unità di personale esterno)
• FLAVIO MASSIMO GARLASCHI (Persona)

Incoming links:

Autore CNR di

• GIUSEPPE ZUCCHELLI (Unità di personale interno)
• ROBERT JENNINGS (Unità di personale esterno)
• FLAVIO MASSIMO GARLASCHI (Persona)

Prodotto

• Istituto di biofisica (IBF) (Istituto)
• Bioenergetica e Biologia molecolare delle piante (MD.P01.005.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Photochemistry and photobiology (Rivista)