94 



INDEX 



Methane, microbial origin of, 2, 



3 

 Methane bacteria, enrichment and 

 isolation, 6, 7 

 influence of reducing agents on, 



8 

 morphology of, 14-15 

 nutritional requirements of, 12, 



13 

 pU range of, 13, 14 

 relation to oxygen, 7, 8 

 specialization in energy metabo- 

 lism, 8, 9 

 substrate specificity, 9-12 

 taxonomy of, 14-15 

 Methane fermentation, of acetate, 

 16, 17, 21, 22, 23 

 of butyrate, 18-19 

 of ethanol, 3, 16, 18 

 of hydrogen, 9-11, 17 

 of methanol, 21, 22, 23 

 of propionate, 19, 20 

 Methane formation, by mixed cul- 

 tures, 16 

 early history, 1-5 

 from carbon dioxide, facts and 



theories, 23-26 

 from cellulose, 3 

 from plant materials, 2 

 in ruminants, 4 

 Methanobacillus omelianskii, 6, 7, 



11, 14, 18,23 

 Methanobacteriaceae, 14, 15 

 Methanobacterium formicicum, 6, 



8,11, 14,24 

 Methanobacterium propionicum, 



12,14, 18,19 

 Methanobacterium sdhngenii, 7, 



14 

 Methanobacterium suboxydans, 6, 

 7, 11, 12, 14, 18 



Methanococcus mazii, 7, 12, 14 

 Methanococcus vannielii, 6, 13, 14 

 Methanosarcina barkerii, 6, 11, 12, 



14,23 

 Methanosarcina methanica, 7, 14 

 Methyl glyoxal, 30 

 Methyl group transfer, 22 

 Micrococcus aerogenes, 64, 87 

 Micrococcus anaerobius, 64 

 Micrococcus lactilyticus, 87 

 Micrococcus variabilis, 64 

 Microzyma cretae, 3 



Nitrogen fixation, by methane 

 bacteria, 13 



Orotic acid, fermentation of, 61, 



63, 76, 77 

 Oxamic acid from allantoin, 75, 76 



Phosphotransacetylase, 39, 46, 48, 



52 

 Proline, conversion to 5-aminoval- 



erate, 59 

 Propionate, use by CI. kluyveri, 



49 

 Propionibacterium, 73 

 Propionyl coenzyme A, 42, 52, 74 

 Proteus morganii, 64 

 Proteus vulgaris, 64 

 Pseudomonas fluorescens, 65, 66 

 Purine fermentation, by Clostridia, 



77-87 

 by micrococci, 87 

 Pyrimidine biosynthesis, 63, 77 

 Pyruvate, formation from gluta- 



mate, 68, 69 

 role in butyrate formation, 30, 



35, 41 



Serine, fermentation of, 60, 63 



