INDEX 



523 



Tannins 



absence in spinach of, 278. 

 inactivation of chloroplast reaction 



by, 276-278. 

 occurrence in plants of, 277. 

 reaction with Carbowax of, 279-281. 

 Temperature 

 effect of 



on absorption spectra, 77. 

 on chloroplast reaction, 269. 

 on fluorescence, 116. 

 on luminescence, 119. 

 on photosynthesis, 269. 

 on rate of phosphorylation 

 in dark, 299. 

 in light, 299. 

 on Rhodospirillum 

 in dark, 194. 

 in light, 194. 

 on scattering of light, 172. 

 on transients in gas e.xchange, 

 402-403. 

 in illuminated grana, 171. 

 luminescence as a function of, 119. 

 Temperature optimum, for photosyn- 

 thesis, 119. 

 Tetrazolium salts, reduction of, 51. 

 Thermal conductivity bridge, 399. 

 Thionine 



photoreduction of 



by acidified ferrous sulfate, 50. 

 by allyl thiourea, 50. 

 by ascorbic acid, 50. 

 by cysteine, 50. 

 by glutathione, 50. 

 by stannous chloride, 50. 

 in the presence of thiourea, 50. 

 Thiourea, used in photoreduction of 



thionine, 50. 

 Time course, of CO2 fixation, 121-122. 

 TPN 



photoreduction by chlorophyll ex- 

 tract of, 285-287. 

 reduction by chloroplasts of, 266- 

 268, 379. 

 Transient uptake, of COo, 405. 



Transients 



acid gushes as, 452-455. 

 acidity changes during, 430-432. 

 in ATP levels, 455. 

 in CO2 exchange, 353-354. 



in algae, 430-442. 

 in CO2 fixation, 213-223. 

 in Chlorella, 412-417. 

 in Chromatium 



acid gush of, 452-455. 

 initial acid uptake of, 454. 

 effect of dark intervals on oxygen 



burst, 423. 

 in fluorescence, 134. 

 in gas exchange 

 in algae, 406-408. 

 in leaves, 399-405. 



temperature effects, 402-403. 

 induced by spectral changes in 



irradiation, 444-448. 

 in luminescence, 134. 



of algae, 135. 

 in oxidative metabolism, 437. 

 oxygen burst as function of oxygen 

 concentration during, 421, 

 428. 

 in O2 evolution, 412-417. 

 in O2 exchange, 353-354. 

 in algae, 409-411. 

 m Chlorella, 412-417. 

 in PGA levels, 441-442. 

 in pH of purple sulfur bacteria sus- 

 pension, 450-456. 

 in RDP levels, 441-442. 

 Transitory values, of assimilatory 



quotient, 401. 

 Trifolium repens, Hill reaction activity 



of, 280. 

 Triphenyl methane dyes, fluorescence 

 of, 53. 



Ultraviolet light 



effect on luminescence of, 119. 

 inhibition of photot^yn thesis by, 



2.36. 

 in photoreduction, 50. 



