512 



INDEX 



Hematin compovinds 



in anaerobic bacteria, 153-155. 



in chloroplasts, 140, 179. 



function in piiotosyntliosis of, 155- 



1()2. 

 metabolism of, M9-l()2. 

 in photosynthrti(5 tissues, 149-102. 

 Heme factor, 2()4-2(J(>. 

 Hemoglobin 

 reduction of, 191. 



use in oxygen determination of, 265. 

 Hemoprotein 

 photoreduction in Rhodospir ilium 



rubriim of, 192. 

 reduction of, 196, 255. 

 Hersch meter, 409. 



Hill reactions, 133, 221-222, 247. See 

 also Chloroplast reactions. 

 absence of cyanide sensitivity in, 



387. 

 activity of 



in Acer saccharum, 280. 

 in Ailanthus altissima, 280. 

 in Cercis canadensis, 280. 

 in Elodea canadensis, 280. 

 in Gledilsia tricanthos, 280. 

 in grana of blue-green algae, 274. 

 in Gymnocladus dioica, 280. 

 in Lenina minor, 280. 

 in Medicago saliva, 280. 

 in Phytolacca americana, 280. 

 in plastids of red algae, 274. 

 in Robina Pseudo-Acacia, 280. 

 in Spinacea oleracea, 280. 

 in Trifolium repens, 280. 

 dark reactions in, 263, 381 

 effect of inhibitors on, 387-389. 

 effect of o.xidants on, 378-383. 

 effect of urethanes on, 388. 

 as function of light intensity, 375- 



378. 

 in heavy water, 384-387. 

 inhibitors of, 274-283. 

 kinetics of, 204-266, 373-390. 

 with flash illumination, 387. 

 pH dependence of, 383-384. 

 quantum yield of, 390. 



rate of 



effect of chloride on, 381. 

 effect of oxidants on, 379. 

 Hill reagent, 143-144, 222, 2J7, 257- 

 2()2, 378 383. 

 nitrite as, 252. 



\ise of ])henolindophenol as, 82, 382. 

 Holochrome, 404-473. 

 Hydrocarbons, as solvents for chloro- 

 phyll, 35. 

 Hydrodiclyon 



continuous culture of, 492. 

 life cycle in, 492. 

 photoperiodicity in, 490-498. 

 Hydrogen 



primary- acceptor. See Primary hydro- 

 gen acceptor. 

 transfer of, 19. 

 to DPN, 29. 

 H.ydrogen acceptors, for chloroplast 

 reaction, 263, 378-383. See 

 also Primary hydrogen 

 acceptor. 

 Hydrogenase, in photosynthesis, 235- 



237. 

 Hydrosulfite, effect on anaerobic light 



effect of, 189-191. 

 Hydroxylamine 

 effect of 



on luminescence, 126. 



on oxygen evolution, 243-244. 



on rate of photosynthesis, 78. 



Illumination 

 of cells, 61-62. 



effect on chlorophyll luminescence in 

 vivo of, 46. 

 Inactive chlorophyll, 448. 

 Index of refraction, relation to scatter- 

 ing of light of, 10.3-104,401. 

 Induced resonan(!e, 6. 



energy transfer by, 363. 

 Induced rhythms, 486-488, 495. 

 Infrared absorption spectra, 37-44. 

 of ba(!teriochlorophyll, 39, 41-44, 

 168. 



