Role of phospholipid transfer protein in the exchange of phospholipids between microsomes and chloroplasts [of Pisum sativum and Spinacia oleracea]

When microsomes containing phosphatidylcholine labelled with [1-14C]-linoleate were incubated with pea or spinach chloroplasts, active transfer of this phospholipid took place in the presence of phospholipid transfer protein. This transfer also was demonstrated by incubating unlabelled microsomes, c...

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Bibliographic Details
Published in:Plant and cell physiology 1984-10, Vol.25 (7), p.1197-1204
Main Authors: Dubacq, J.P, Drapier, D, Kader, J.C. (Universite P and M Curie, Paris (France)), Tremolieres, A
Format: Article
Language:English
Subjects:
BIOCHEMISTRY
BIOCHIMIE
Biological and medical sciences
BIOQUIMICA
Cell structures and functions
Chloroplast
Chloroplast, photosynthetic membrane and photosynthesis
chloroplasts
CYTOPLASMIC ORGANELLES
FOSFOLIPIDOS
Fundamental and applied biological sciences. Psychology
lipids
Microsome
Molecular and cellular biology
ORGANITE CELLULAIRE
ORGANULOS CITOPLASMATICOS
Pea
PHOSPHATIDE
Phospholipid
PHOSPHOLIPIDS
PISUM SATIVUM
PLASTE
PLASTIDIOS
PLASTIDS
PROTEINAS
PROTEINE
PROTEINS
Spinacea oleracea
Spinach
SPINACIA OLERACEA
Transfer
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Summary:When microsomes containing phosphatidylcholine labelled with [1-14C]-linoleate were incubated with pea or spinach chloroplasts, active transfer of this phospholipid took place in the presence of phospholipid transfer protein. This transfer also was demonstrated by incubating unlabelled microsomes, chloroplasts and the phospholipid transfer protein in the presence of [1-14C]-acetate. The reconstituted systems could synthesize fatty acids which were acylated in microsomal phosphatidylcholine. The transfer of this phospholipid to chloroplasts is mediated by the transfer protein. Our results suggest a role for phospholipid transfer protein in the synthesis of chloroplast lipids.
ISSN:0032-0781
1471-9053
1471-9053
DOI:10.1093/oxfordjournals.pcp.a076827