482 



LIGHT AND LIFE 



.4 - 



.3 - 



2 - 



.1 - 



600 



650 



700 



750 



Mji. 



Fig. 2. Absorption spectrum of an "apple green" mutant of Chlorella pyrenoidosa, 

 showing absorption at 710 m^. The spectrum was measured with a Gary record- 

 Mig spectropJ' (tometer with opal glass to minimize the effects of scattering. 



tion is in progress. Whatever its nature, if it is, as Kok suggests 

 the ultimate energy converter in photosynthesis, it must be of great 

 interest to students of this subject. 



REFERENCES 



1. Allen, M. B., French, C. S., and Brown, J. S., in Coiiiporatwe Biochemistry nf 



Plwtoreactix'e Systems (M. B. Allen, ed). Academic Press, New York, 1960. 



2. Dangeard, P. -A., Le Botaniste, 19, 200-208 (1927). 

 ,3. Duysens, L. N. M., Nature, 168, 548-549 (1951). 



4. Duysens, L. N. M., Dissertation, Utrecht (1952). 



5. Kok, ^., Plant Physiol., 34, 184-192 (1959). 

 ('}. Kok, B., this sym]j()sium. 



7. Zscheilc, F. P.,'and Harris, D. (,., ./. Phys. Chem., 47, 623-637 (1943). 



