514 



INDEX 



Light 

 delayed emission of. See Lumines- 

 cence. 

 effect of 



on absorption, 103-104. 

 on background CO2 fixation, 207- 

 208, 211. 

 Light absorption. See Absorption, of 



light. 

 "Light" cells 

 of algae, 488. 

 life cycle of, 488. 

 Light-dark cycle, periodicity in, 487. 

 Light emission, effect on absorption 

 spectrum of chlorophyll of, 

 46-47. 

 Light flashes, 209-210. See also Flash 



illumination. 

 Light-induced phosphorylation. See 



Photophosphorylation. 

 Light intensitj^ 



of chemiluminescence 



dependence of temperature on, 1 19. 

 fluorescence jdeld as a function of, 



111, 113-117. 

 Hill reaction as function of, 375-378. 

 nitrite reduction as a function of, 

 250. 

 Light interval, effect on photosynthesis 



of, 75-84, 209-210. 

 Light reactions 



inhibition of photosynthesis by, 359. 

 kinetic effects of, 193-195. 

 of Rhodospirillurn ruhruni, 180-182. 

 Light saturation 



of chloroplast reaction, 265. 

 curves of, 265. 

 Light scattering. See Scattering of light. 

 Limiting quantum yield 

 determination of, 52. 

 variation with dyes of, 52. 

 Luminescence 



activation energy for, 119. 

 of algae, 45, 118, 128, 134. 



transients in, 135. 

 of Chlorella, 135-137, 140-141. 

 of chlorophyll 



in algae, 134. 



in solution, 124, 134. 

 of chloroplasts, 125. 

 effect of anaerobiosis on, 123, 137. 

 effect of COo on, 120, 136, 145. 

 effect of hj'droxylamine on, 126. 

 effect of inhibitors on, 124. 

 effect of intermediates on, 136. 

 effect of O2 on, 123, 136. 

 effect of phenylurethane on, 138. 

 effect of ultraviolet light on, 119. 

 intensity of, 118, 125, 128, 134. 

 of lyophilized chloroplasts, 121. 

 of photoconductors, 132. 

 of photosynthetic organisms, 118- 

 141. 



decay characteristics of, 119-120. 



enzymatic factors in, 119. 



physical parameters of, 118-119. 



relation to photosynthesis of, 120- 

 122. 



transients in, 135. 

 of plants, 118-141. 

 rate of decay of, 119. 

 relation to photosynthesis of, 120. 

 saturation of, 119, 132. 

 transients in, 134. 

 Lyophilized chloroplasts, luminescence 

 of, 121. 



Magnesium 



bond strength in chlorophyll of, 43. 

 as cof actor in photophosphorylation, 



340. 

 effect on electronic system of chloro- 



phj'll molecule of, 13-14. 

 hydration in pheophytin of, 13. 

 Magnesium-free chlorophyll, fluores- 

 cence of, 13. 

 MammaUan cytochrome c, 151-152, 



157, 179-180. 

 Manganese 



participation in COi fixation of, 248, 



291. 

 required for O2 evolution of, 243-248. 



