Abstract
The galactolipid, phospholipid, and fatty acid composition of chloroplast envelope membrane fractions isolated from leaves of Vicia faba L. has been determined. The major lipids in this fraction are: monogalactosyldiglyceride, 29%; digalactosyldiglyceride, 32%; phosphatidylcholine, 30%; and phosphatidylglycerol 9%. The lipid composition of the chloroplast envelope membranes is qualitatively similar to that of the lamellar membranes isolated from the same plastids, but the proportion of each lipid present is very different. The total galactolipid to total phospholipid ratio was 1.6: 1 in the envelope and 11.1: 1 in the lamellae. The monogalactosyldiglyceride-digalactosyl-diglyceride ratio was 0.9: 1 in the envelope and 2.4: 1 in the lamellae. Both membranes lack phosphatidylethanolamine.
Linolenic acid is the major fatty acid in the envelope lipids representing 63% of the total fatty acid, whereas in the lamellae it represents 83%. The same fatty acids are present in both the envelope and lamellar lipids except the trans-Δ3-hexadecenoic acid, which is confined to the lamellar lipids, particularly the phospholipid fraction.
A quantitative comparison of the lipid and fatty acid compositions of the envelope with those of mitochondrial and microsomal fractions indicates that the chloroplast envelope has a composition intermediate between that of the chloroplast lamellae and these extrachloroplastic membranes.
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- Arnon D. I. COPPER ENZYMES IN ISOLATED CHLOROPLASTS. POLYPHENOLOXIDASE IN BETA VULGARIS. Plant Physiol. 1949 Jan;24(1):1–15. doi: 10.1104/pp.24.1.1. [DOI] [PMC free article] [PubMed] [Google Scholar]
- BARTLETT G. R. Phosphorus assay in column chromatography. J Biol Chem. 1959 Mar;234(3):466–468. [PubMed] [Google Scholar]
- Bassham J. A., Kirk M., Jensen R. G. Photosynthesis by isolated chloroplasts. I. Diffusion of labeled photosynthetic intermediates between isolated chloroplasts and suspending medium. Biochim Biophys Acta. 1968 Jan 15;153(1):211–218. doi: 10.1016/0005-2728(68)90162-x. [DOI] [PubMed] [Google Scholar]
- Devor K. A., Mudd J. B. Structural analysis of phosphatidylcholine of plant tissue. J Lipid Res. 1971 Jul;12(4):396–402. [PubMed] [Google Scholar]
- EMMELOT P., BOS C. J., BENEDETTI E. L., RUEMKE P. STUDIES ON PLASMA MEMBRANES. I. CHEMICAL COMPOSITION AND ENZYME CONTENT OF PLASMA MEMBRANES ISOLATED FROM RAT LIVER. Biochim Biophys Acta. 1964 Jul 15;90:126–145. doi: 10.1016/0304-4165(64)90125-4. [DOI] [PubMed] [Google Scholar]
- FOLCH J., LEES M., SLOANE STANLEY G. H. A simple method for the isolation and purification of total lipides from animal tissues. J Biol Chem. 1957 May;226(1):497–509. [PubMed] [Google Scholar]
- GIBBS S. P. The ultrastructure of the chloroplasts of algae. J Ultrastruct Res. 1962 Dec;7:418–435. doi: 10.1016/s0022-5320(62)90038-2. [DOI] [PubMed] [Google Scholar]
- Gardner H. W. Preparative isolation of monogalactosyl and digalactosyl diglycerides by thin-layer chromatography. J Lipid Res. 1968 Jan;9(1):139–141. [PubMed] [Google Scholar]
- HEBER U., WILLENBRINK J. SITES OF SYNTHESIS AND TRANSPORT OF PHOTOSYNTHETIC PRODUCTS WITHIN THE LEAF CELL. Biochim Biophys Acta. 1964 Feb 10;82:313–324. doi: 10.1016/0304-4165(64)90302-2. [DOI] [PubMed] [Google Scholar]
- Heber U. W., Santarius K. A. Compartmentation and reduction of pyridine nucleotides in relation to photosynthesis. Biochim Biophys Acta. 1965 Nov 29;109(2):390–408. doi: 10.1016/0926-6585(65)90166-4. [DOI] [PubMed] [Google Scholar]
- Heldt H. W. Adenine nucleotide translocation in spinach chloroplasts. FEBS Lett. 1969 Sep;5(1):11–14. doi: 10.1016/0014-5793(69)80280-2. [DOI] [PubMed] [Google Scholar]
- Heldt H. W., Rapley L. Specific transport of inorganic phosphate, 3-phosphoglycerate and dihydroxyacetonephosphate, and of dicarboxylates across the inner membrane of spinach chloroplasts. FEBS Lett. 1970 Oct 5;10(3):143–148. doi: 10.1016/0014-5793(70)80438-0. [DOI] [PubMed] [Google Scholar]
- Heldt H. W., Rapley L. Unspecific permeation and specific uptake of substances in spinach chloroplasts. FEBS Lett. 1970 Apr 2;7(2):139–142. doi: 10.1016/0014-5793(70)80140-5. [DOI] [PubMed] [Google Scholar]
- Heldt H. W., Sauer F. The inner membrane of the chloroplast envelope as the site of specific metabolite transport. Biochim Biophys Acta. 1971 Apr 6;234(1):83–91. doi: 10.1016/0005-2728(71)90133-2. [DOI] [PubMed] [Google Scholar]
- Lürssen K. Volumen, Trockengewicht und Zusammensetzung von Etioplasten und ihren Ergrünungsstadien. Z Naturforsch B. 1970 Oct;25(10):1113–1119. [PubMed] [Google Scholar]
- MORRISON W. R., SMITH L. M. PREPARATION OF FATTY ACID METHYL ESTERS AND DIMETHYLACETALS FROM LIPIDS WITH BORON FLUORIDE--METHANOL. J Lipid Res. 1964 Oct;5:600–608. [PubMed] [Google Scholar]
- Mackender R. O., Leech R. M. Isolation of chloroplast envelope membranes. Nature. 1970 Dec 26;228(5278):1347–1349. doi: 10.1038/2281347a0. [DOI] [PubMed] [Google Scholar]
- Nobel P. S., Wang C. T. Amino acid permeability of pea chloroplasts as measured by osmotically determined reflection coefficients. Biochim Biophys Acta. 1970 Jul 7;211(1):79–87. doi: 10.1016/0005-2736(70)90125-2. [DOI] [PubMed] [Google Scholar]
- Ongun A., Thomson W. W., Mudd J. B. Lipid composition of chloroplasts isolated by aqueous and nonaqueous techniques. J Lipid Res. 1968 Jul;9(4):409–415. [PubMed] [Google Scholar]
- Roughan P. G., Batt R. D. Quantitative analysis of sulfolipid (sulfoquinovosyl diglyceride) and galactolipids (monogalactosyl and digalactosyl diglycerides) in plant tissues. Anal Biochem. 1968 Jan;22(1):74–88. doi: 10.1016/0003-2697(68)90261-3. [DOI] [PubMed] [Google Scholar]
- Schwertner H. A., Biale J. B. Lipid composition of plant mitochondria and of chloroplasts. J Lipid Res. 1973 Mar;14(2):235–242. [PubMed] [Google Scholar]
- Stocking C. R., Larson S. A chloroplast cytoplasmic shuttle and the reduction of extraplastid NAD. Biochem Biophys Res Commun. 1969 Oct 8;37(2):278–282. doi: 10.1016/0006-291x(69)90731-1. [DOI] [PubMed] [Google Scholar]
- Werdan K., Heldt H. W. Accumulation of bicarbonate in intact chloroplasts following a pH gradient. Biochim Biophys Acta. 1972 Dec 14;283(3):430–441. doi: 10.1016/0005-2728(72)90260-5. [DOI] [PubMed] [Google Scholar]