574 



A. A. Benson 



LECITHINS' 



H.C-O' 0-CHi 



I 

 H-C-O-CO — R 



I 



HtC-O-CO — R' 

 Phosphatidyl Choline 



"PHOSPHOINOSITIDES" 



H.C-0' \ 



H-C-0-CO-R 



I , H 



HaC-0-CO-R 



OH 



OH 



Phosphatidyl Inositol 



"CEPHALINS" 



- + 



0*. fi NHs 



X >"• 



HtC-0 0-CHf 



I 

 H-C-O-CO— R 



I , 



HtC-O-CO— R 



Phosphatidyl Ethanoiamine 



- + 



O NHs 



Pk" )ch-cooh 



HtC-o' O-CHf 



I 

 H-C-O-CO— R 



I , 



HtC-O-CO— R 



Phosphatidyl Serine 



'POLYGLYCEROLPHOSPHATIDES 





 H.C-O-^V^— 0— CHi 



I I 



H-C-0-CO-R HO-C-H 



H.C-0-CO-R' HtC-OH 



Phosphatidyl Glycerol 



R-CO-O-C-H H-C-OH 



I I 



HtC-0-P<-0-C-Hi 



HtC-0-P-O-C-Ht 



H-C-0-CO-R 

 I 



R'-CO-O-C-Ht 



" H M-U-UM 



HtC-O-CO-R' 



01 phosphatidyl Glycerol 



Fig. 2. Phospholipids occurring in chloroplasts. 

 The most concentrated phospholipid in chloro- 

 plasts is phosphatidyl glycerol. 



REFERENCES 



(1) J.C. Goedheer, 'Optical Properties and in vivo Orientation of Photo- 



(2) 

 (3) 



(4) 



(5) 

 (6) 

 iV 

 (8) 

 (9) 

 (10) 



(11) 

 (12) 



(13) 

 (14) 



synthetic pigments,' Dissertation, Utrecht, 1957. 

 J.J. Wolken, Ann. Rev. Plant Physiol. , 10, 71 (1959). 



L. Gaines, Jr., and A. G. Tweet, J. Chem. 



Phys. 

 169, 



W. D. Bellamy, G. 

 in press (1963). 



W. Stoeckenius, J.H. Schulman, andL.M. Prince, Kolloid-Z. 



170 (1960). 



W. Menke, Protoplasma, 2]_, 279(1934). 



F. Weber, Protoplasma, 19, 455 (1933). 



W. Menke and A. A. Benson, unpublished observations. 



J.S. O'Brien and A. A. Benson, J. Lipid Res. , in press. 



W. Menke, Z. physiol. Chem. , 257, 43 (1938). 



R.O. Weenink, J. Sci. FoodAgric, 12,, 34(1961). 



P.S. SastryandM. Kates, Biochim. Biophys. Acta, 70, 214(1963). 



P. S. SastryandM. Kates, Am. Chem. Soc. 145th Mtg. , Abstracts, 

 pp. 2-C, New York, 1963. 



T. YagiandA.A. Benson, Biochim. Biophys. Acta, 57, 601 (1962), 



This work was supported by grants from the NationaFSci. Founda- 

 tion and U.S. Public Health Service (Grant AM-07115 Met). 



