20G8 



SUBJECT INDEX 



on reversil)le reduction of Chi and 

 Pheo, 1506, 1805 

 photochemical shift of equilibrium with 



methylene blue, 509 

 quenching of Chi fluorescence, 782, 786, 



1513, 1834 

 as reductant, for Chi, 1502, 1805 

 for oxidized Chi, 504-05 

 2-Phetiiil-3-nitrohiqiclo-{l,2,2] heptane-5, as 



quencher of Chi fluorescence, 782 

 Phenylurethan, effect, on CO2 burst, 1346- 

 47 

 on fluorescence induction, 1396, 1398 

 on HR, 1611-13 

 on PR in bacteria, 959 

 on PS, 321-23, 959 



in flashing light, 1463-64 

 See also Urethans 

 Pheophorbides (a, b), 447, 458, 462 



absorption spectra, 629, 1799, 1800, 

 1801 

 in crystals, 1820, 1823 

 fluorescence spectra 742, 749 

 as sensitizer in thiourea actinometer, 

 1528 

 Pheophyceae. See Brouui algae 

 "Pheophytin," of protochlorophyll. See 



Proiopheophytin 

 Pheophytinization, of Chi, 456, 467, 493-94, 

 498 

 prevention during extraction, 1774 

 in reversible reduction or oxidation of 

 Chi, 1504, 1777 

 Pheophytins 



Pheophytins (a, b), 447, 452-54, 456, 467, 

 493-94, 498, 604, 616-17, 626-27 

 absorption spectra, 627, 1804 



no effect of polar molecules, 648, 772, 

 788 

 CO2 absorption, 452-54 

 d, d', iso-d, and iso-d', 616-17 

 fluorescence spectra, 748 



no effect of polar groups, 648, 772, 

 788 

 formation from Chi. See Pheophy- 

 tinization 

 photogalvanic and photovoltaic (Bec- 



querel) effect, 1520-22 

 as sensitizers of oxido-reductions, 1519- 

 20 

 Pheoporphyrin as, absorption spectrum, 



629 

 Phorbins, 447 



Phosphatase, in cytoplasmic fraction of 

 leaves, 1748 

 in higher plants and bacteria, heat- 

 resistant, 1686 

 Phosphate bond energy. See High energy 



phosphates 

 Phosphate buffers, and CO2 uptake by 



leaves, 190-95 

 Phosphate esters, C(14) tagging in PS, 

 1639-41, 1656-60, 1670-74, 1676- 

 86 

 precedes that of free sugars, 1685 

 P(32) tagged in PS, 1660-61, 1702-03, 



1708-09 

 See also Phosphogly eerie acid, Phospho- 

 pyruvic acid, Uridine Phosphate, 

 etc. 

 Phosphates, high energy. See Adenosine 

 triphosphate {ATP), and High energy 

 phosphates 

 role in plant metabolism. See Phos- 

 phorus metabolism 

 Phosphatidic acid, in leaves, 374-75 

 Phosphoacetaldehyde, possible role in PS, 



1692 

 2-Phosphoenolpyruvic acid, possible role in 



PS, 1692 

 Phosphoghicomutase and phosphofructo- 



kinase, in chloroplasts, 1749 

 Phosphogly ceraldehyde, C(14) tagged in 



PS, 1645 

 Phosphoglyceric acid (PGA) 

 Phosphogiyceric acid, C(14) tagging, in 

 chloroplasts, 1535 

 in dark after preillumination, 1639- 



40, 1642, 1653-55 

 distribution of label, between a, /3, 

 and 7-carbon, 1653, 1663-64, 

 1665-66, 1671-72 

 between a and ^-phosphates, 1661- 

 62 

 effect of darkening, 1680 



VoJiune I, pp. 1-599; Volume II.l, pp. 601-1208; Volume 11.2, pp. 1209-2088 



