SUBJECT INDEX 



2083 



Baderiochlorophyll fluorescence, and 

 Chlorophyll fluorescence 

 Sensitized photochemical reactions. See 

 Chlorophyll-sensitized reactions, in vitro 

 and in vivo, and Bacteriochlorophyll- 

 sensitized reactions 

 "Sieve effect,'' in absorption spectroscopy, 

 672, 686, 697, 710, 714-715, 1259, 

 1865-66. See also Absorption spectra, 

 deformation 

 Shade, "blue" and "green," spectral dis- 

 tribution of light, 732-33 

 Shade plants. See Umbrophilic plants 

 Silent discharges, effect on CO2, 83 

 Silver nitrate reduction, by ascorbic acid, 

 272 

 by chloroplasts in light ( = Molisch re- 

 action), 254, 270-71, 1736-40 

 electron microscopy, 1736-40 

 Silver oxide and silver acetate, as oxidants 



for Chi, 463 

 Size effect, on HR activity of chloroplastic 

 dispersions, 1558-61 

 on spectrum of Chi crystals, 1815-16, 

 1822-23 

 Sky light, spectral intensity distribution, 



732, 837 

 Smoke, effect on vegetation, 538 

 Snap-freezing, for preservation of chloro- 

 plasts, 1545-46 

 Sodium, effect on PS, 340, 835-36 



in leaves, 377 

 Solar energy, total flux, 8-9 



fractions absorbed by plants and used 

 for PS, 8-9, 1003-07. See also 

 Sunlight 

 "Solarization," of PS, 532. 



Hmiting effect on flash yield, 1476 

 See also Inhibition by excess light 

 Solvents, effect, on absorption spectra, of 

 BChlandChl, 11, 637-649 

 on allomerization of Chi, 461-62 

 on fluorescence of Chi, 405, 745, 



763-72 

 on PR and PO of BChl and Chi, 

 1501-02, 1504, 1505 

 protective effect on Chi, 501 

 reactions with Chi, 485-86, 491-92, 500, 

 516 



Sorption, isothermals, of Chi for CO2, 452 

 "Soret band," 621, 1795, 1807 

 Spirilloxanthtn, (= rhodoviolascin?) ab- 

 sorption spectrum, 416, 473, 659, 1809 

 inactive as photosensitizer in bacteria?, 

 1302, 1873-75 

 Spongy parenchyma, 357 

 Standard bond energies, 213-15, 217, 283, 



484 

 Starch, accumulation in leaves, 46 



as cause of "midday depression" of 

 PS, 875 

 dissolution in intense hght, 532 

 energy content, 49 

 equiUbrium with sugars in guard cells, 



334 

 as food for flagellates, 261 

 formation, sensitized by Chi b, 406, 423- 

 24 

 in ultraviolet light, 344 

 grains in chloroplasts, 33, 1729 

 occurrence in plants, 43, 47 

 as product of PS, 37, 42, 86, 87 

 production in plants from organic foods, 



257-63 

 structure, 42 

 Stern-Vohner equation, 1023 

 Sterols, in leaves, 375 

 Stimulation 



Stimulation, of HR, by ethylenediamine 

 tetraacetic acid, 1611 

 of PS, by acids, 340 

 by ascorbic acid, 273 

 by auxins, 343, 1921 

 by carbohydrates, 332-33 

 by cyanide (in small amounts), 303, 



304, 1905 

 by dehydration, partial, 335 

 by H2S (in small amounts), 342 

 by injury, 343-44 

 by iodoacetate (in small amounts), 



342 

 by ionic deficiency removal, 335-42 

 by miscellaneous chemicals, 342-44 

 by narcotics (in small amounts), 321, 



342 

 by physical agents, 344-47 

 by SO2, 317, 342 

 by urethans, 342 



Volume 1, pp. 1-599; Volume II.l, pp. 601-1208; Volume IL2, pp. 1209-2088 



