510 



INDEX 



Electron transfer reactions {Continued) 

 energetics in chloroplasts of, 161, 



208, 299, 390. 

 quantum requirements of, 20. 

 Elodea canadensis, Hill reaction ac- 

 tivity of, 280. 

 Emission band overlap, of similar 



molecules, 6, 20. 

 Emission energj'^ 

 in chlorophyll, 14. 

 in pheophorbide, 14. 

 Emission spectrum, of chlorophyll. 

 See Chemiluviinescence, Chloro- 

 phyll fluorescence. 

 Endogenous rhythms, 495. 

 Energy 



of electronic excitation, 0. 



of fluorescent state of chlorophj'll, 



14-15. 

 of long-lived state of chlorophyll, 14- 



15. 

 loss of, 28. 

 Energy difference, between ground and 

 metastable states of chloro- 

 phyll, 8. 

 Energy transfer, 6, 19-30, 161, 325. 



by inductive resonance, 303. 

 Enolization, of chlorophjil. See Chloro- 

 phyll reactions in vitro, enoli- 

 zation. 

 Enzymatic synthesis, of uroporphyrin 



precursors, 475-483. 

 Enzymes, in chloroplasts, 204, 289, 294. 

 Eosin, photoreduction of, 52. 

 Ethyl chlorophyllide 

 luminescence of 



with aldehyde, 41, 46. 

 with base, 46. 

 with O2, 46, 55. 

 photoreduction of, 54. 

 Ethyl chlorophyllide a 



infrared absorption spectra of, 38, 



40, 41, 42-44. 

 quantum yield of fluorescence for, 

 107-111. 

 ]']thyl chlorophyllide h, infrared specti'a 

 of, 38, 41, 42-44. 



I'jthylene diamine tetraacetic acid, 51 . 

 Ethyl pheophorbide a, infrared absorp- 

 tion spectra of, 37, 39, 42-44. 

 Ethyl pheophorbide h, infrared absorp- 

 tion spectra of, 39, 41, 42-44. 

 Ethylpheophorbide &-2,4-dinitrophenyl 

 hydrazone, infrared absorp- 

 tion spectra of, 39, 42-44. 

 Etiolated plants 



CO2 fixation by, 224-227. 

 photosynthesis by, 224-227. 

 synthesis of ribulose diphosphate in, 



225. 

 synthesis of serine in, 225. 

 Etiolated seedlings, 408, 498. 

 Excitation energy 



of chlorophyll, 19, 88. 



in grana, 21, 161. 

 time required for migration of. 111. 

 transfer of, 7. 



to different pigments, 87. 

 Exciton, defined, 323. 



Facultative bacteria, hematin com- 

 pounds of, 149, 151-153. 

 Fast light reaction, 75-84. See also 

 Spectroscopy, Transients. 

 of extracts, 192-202. 

 of inhibited cell suspensions, 192-202. 

 Fermentation, as monitor of acidifi- 

 cation, 450-452. 

 Ferrous sulfate, used in photoreduction 



of thionine, 50. 

 Fixation 



of carbon-14. See Carbon-14 fixation. 

 of carbon dioxide. See Carbon dioxide 

 fixation. 

 Flash bleaching, of chlorophyll, 31-36. 

 Flash illumination, 75-80. 



of chloroplasts, 85-88, 305, 387. 

 effect on absorption spectrum of, 



31-30. 

 kinetics of 



in Hill reaction, 387, 390. 

 in photosynthesis, 75-84, 354-357. 

 iiuninescence during, 131-135. 



