408 



INDEX 



Stipitatic acid, 291 

 iStreptamine, 181 

 ytreptidine, 180 

 Streptobiosaminide, 181 

 Streptococcus, antitoxin, 426 



— hovis, dextran synthesis, 348 



— cremoris, 319 



— growth factors for, 105, 108, 110, 



112, 113 



— Group N, antibiotic in, 185 



— hcemolyticus , growth factors for, 



108, 120 

 pyruvic oxidase in, 43 



— lactis, 246, 259, 319, 321 



— paracitrovorus, CO2 fixation, 259 



— jyyogenes, drug resistant strains, 



153 



inhibition by iodinin, 392 



pantoyltaurme, 148 



sulphanilamide, 149 



— respiration of, 198, 211 



— salivarius, 358 



carbohydrates of, 364 



dextran synthesis, 348 



levan synthesis, 351 



Streptomyces grisens, 180 

 Streptomycin, 180 



— inactivation, 180 



— purification, 180 

 Streptothricin, 180, 182 

 (Strychnine, antisera to, 413 



— as determinant group, 413 

 Substrate, definition of, 47 

 Subtilin, 185 



Succinic acid, 245, 300, 410 



detection, 464, 466 



formation of, 250, 251, 284, 



293 

 inhibition of hydrogen donalors 



by, 196 



— dehydrogenase, 212 



inhibition, 135 



Sulamyd, 133 

 Sulochrin, 306, 396 

 Sulphacetamide, 133 



— activity, 144 



— as determinant group, 413 



— ionisation of, 143 

 Sulphadiazine, 132 



— activity, 144 



Sulphadiazine, inhibition })y ^j-aniino- 

 benzoic acid, 139 



— ionisation of, 141, 143 

 Sulphaguanidine, 133 



— inhibition by p-aminobenzoio acid, 



139 

 Sulphamerazine, 145 

 Sulphamethazine, 144 

 Sulphanilic acid, 406, 413 



azo-protems, 406 



Sulphanilamide, 131 



— activity, 144 



— as determinant group, 413 



— inhibition of action, 136, 137. 149 

 by _p-aminobenzoic acid. 139, 



140 



— ionisation of, 141, 143 

 Sulphapyridine, 132, 146 



— activity, 144 



— as determinant group, 413 



— inhibition bvj^-aminobenzoic acid, 



138, 139 



— ionisation of, 141, 143 

 Sulphasuxidine, 134 

 Sulphathiazole, 132 



— activity, 144 



— and decarboxylation, 147, 150 



— as determinant group, 413 



— inhibition by p-aminobenzoic acid, 



138, 139, 140 



— ionisation of, 141, 143 

 Sulphonamides, 132 et seq. 



— and respiration, 147 



■ — antibacterial index, 139 



— antisera to, 413 



• — as determinant groups, 413 



— inhibition by adenine, 145 



by _p-aminobenzoic acid, 138 



by methionine, 145 



— ionisation of, 141 et seq. 

 Sulphones, 134 



Sulphur bacteria, 69, 70 



bacterio-purpurin in, 64, 390 



— - — green, 391 



metabolism of. 70 et seq. 



pigments of, 387, 390, 391 



— compounds in fungi, 305 



— oxidation by sulphur bacteria, 71 



et seq. 



— reduction by yeast, 279 



