INDEX 



491 



Y-Mcthyltetrouic acid, 286, 294 

 Micro-aerophilic organisms, absence 



of catalase, 199 

 Micrococcus lysodeikticus , carboxylase 



in, 259 



— — potysaccharide in, 365 

 production of enzymes by, 93 



— urece, metabolism, 190 

 Mid-piece, 435, 438 



^Mineral constituents in bacteria, fungi 



and yeasts, 58 



phosphorus in, 59 



potassium in, 59 



Minioluteic acid, 286 

 Monilia, lactic acid from, 282 

 Monochloracetic acid, 446 

 Mono-iodoacetic acid, inhibition of 



alcoholic fermentation by, 275, 



278 

 Mucoproteins, 61 

 Mucor, alcohol production, 302 



— glycerol production, 302 



— lactic acid production, 321 



■ — rammanianus, growth factor for, 

 102 



— rouxii, 282 

 Miitase, 193, 273 



Mycobacterium leprce, pigment of, 390 

 trehalose in, 359, 371 



— 2Mei, extract, 113 



nucleic acids of, 336 



— • — nutrition of, 86 



■ — — ■ pigment of, 390 



soluble specific substances, 358 



sterols of, 377 



waxes of, 373, 377 



— tuberculosis, carbohydrates of, 61, 



353, 358 

 ■ — • — glycogen in, 345 



lipoids of, 62, 373 



nucleic acids of, 336 



— — nucleoproteins of, 60 



nutrition of, 85, 87 



phosphatides of, 64, 379 



soluble specific substances, 358 



— — sterols in, 377 



— — waxes in, 373, 374, 377 

 Mycodextran, 351 

 Mj^cogalactan, 351 

 :\[ycolic acid, 374, 375, 377 



Mycolic acid, a-, 375 



P-, 375 



Y-, 377 



Mycophenolic acid, 185, 291, 296 

 Mykol, 372 

 Myristic acid, 370 

 Myxococcus, 357 



Xaphthoquinones, 386 

 [3-Naphthyl-acrylic acid, antibacterial 



action, 148 

 Neisseria gonorrhoce, pyruvic oxidase 



in, 248 

 Neurospora crassa, growth factors for, 



101, 121 



use in assay of amino-acids, 117 



of growth factors, 116 



— sitophila, growth factors for, 110, 



121 

 use of mutants in amino-acid 



synthesis, 343 

 Niacin, 107 



Nicotinamide, 106, 108 

 Nicotinic acid, 100, 106 



in yeast, 339 



Nitrate reduction, 209 



— utilisation, 70, 82, 215 

 Nitrifying organisms, 70 



metabolism of, 70 



Nitrite reduction, 209 



— utilisation, 70, 84, 215 

 Nitrobacter, 69, 70 

 Nitrobenzene, reduction of, 278 

 Nitrogen content of bacteria, fungi 



and yeasts, 59, 66 



— estimation, 59 



— fixation of, 214, 220 et seq. 

 mechanism, 223 



— metabolism of heterotrophs, SI et 

 seq. 



— requirements of micro-organisms, 



214 

 Nitrosococcus, 69 

 Nitrosomonas, 69, 70, 215 



— fixation of formaldehyde from, 71 

 Nomenclature of bacteria, 3 



— of enzymes, 52 

 Non-exacting strains, 83 

 Norleucine, toxicity to bacteria, 218 

 Notatin, 168 



