Further identification of the exoplasmic face particles on the freeze-fractured thylakoid membranes: a study using double and triple mutants from Chlamydomonas reinhardtii lacking various photosystem II subunits and the cytochrome b6/f complex.
Eur J Cell Biol
; 59(1): 176-86, 1992 Oct.
Article
en En
| MEDLINE
| ID: mdl-1468439
ABSTRACT
About 20% of the exoplasmic face (EF) particles present in the freeze-fractured thylakoid membranes of the wild type strain of Chlamydomonas reinhardtii remain in mutants lacking photosystem II (PSII) because of the absence of either one of the two PSII subcomplexes CP43 or D1/D2/CP47. We show that about half of these residual EF particles can be accounted for by PSII subcomplexes still present in such mutants, and by cytochrome (cyt) b6/f complexes. Analysis of double mutants lacking both types of protein complexes points to an association of cyt b6/f complexes with PSII subcomplexes in some of these EF particles and to a requirement in cyt b6/f complexes for the translocation of each of the two PSII subcomplexes (the CP43 subunit and the D1/D2/CP47 subcomplex) from the unstacked to the stacked regions of the thylakoid membranes.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Cloroplastos
/
Chlamydomonas reinhardtii
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
Idioma:
En
Revista:
Eur J Cell Biol
Año:
1992
Tipo del documento:
Article
País de afiliación:
Francia