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On the origin of oil droplets in maturing castor bean seeds, Ricinus communis
Author(s) -
Harwood J. L.,
Sodja Ann,
Stumpf P. K.,
Spurr A. R.
Publication year - 1971
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02531217
Subject(s) - ricinus , castor oil , vacuole , lipid droplet , organelle , chemistry , lipidology , biochemistry , fatty acid , oil droplet , botany , food science , biology , cytoplasm , emulsion
Abstract Fat droplets isolated from maturing castor bean seeds contain high concentrations of fatty acid synthetase and triglyceride synthesizing enzymes. These activities are not due to contamination by other organelles and account for at least 80% of the total lipid synthesis. Electron microscopy of the isolated oil droplets and the seed tissue in vivo revealed particulate containing vacuole‐like inclusions which, it is suggested, are the site of lipid synthesis and which form the original locus of the droplet.