PHOTOSYNTHETIC PHOSPHORYLATION I I 7, 



30. Wtter, a. E. and R. S. W'olfk. /. Bact. 75: 480, 1958. 



31. Vernon, L. P. and M. D. Kamkn. Arch. Biochem. Biophys. 44: 298, 1953. 



32. Vernon, L. P. and M. D. Kamin. Arch. Biochcni. Biop/iys. %\: 122, 1954. 



33. Warburg, D. and W. Christian. Biochem. Ztschr. 303: 40, 1939. 



34. Williams, A. M. Biochim. ct hiophys. acta 19: 570, 1956. 



DISCUSSION 



L. Ernster, M. I). Kamen 



Dr. Ernster: Do these particles exhibit pliosphate-ATP exchange or ATPase activi- 

 ties, and, if so, are these dependent on hght or dark? 



Dr. Kamen: The ATP-Pj exchange is negUgible. Practically all the incorporation of 

 inorganic P is associated with net synthesis of ATP. There is no light-dependent 

 ATPase activity. 



