lAULi: Ol COMKMS 



r I le Acti n ( )i ny cetes 



\'<)i,rMK I 

 OCCURRENCE, XA ITJRE, AND ACTIVITIES 



Preface v 



Introductory vii 



1 . Historical Back^iound 1 



2. Isolation, Identification, Culti\-ation, and Preservation 17 



15. Distribution in Natvu'e 29 



4. Nomenclature and General Systems of Classification 47 



5. ]\Iorphology, Cytology and Life Cycles 71 



(). Variations, Mutations and Adaptations 95 



7. Physiology — Growth and Nutrition 113 



8. Mineral Metabolism 1.38 



9. Biochemical Activities 148 



10. Lytic Mechanisms 1G8 



1 1 . Production of Enzymes 183 



12. Production of Vitamins and Other Growth-Promoting Substances. . . 193 



13. Production of Pigments 198 



14. Antagonistic Properties 207 



15. Production of Antibiotics 225 



16. Decomposition of Plant and Animal Residues 243 



17. Causation of Animal Diseases 251 



18. Causation of Plant Diseases 2G5 



Epilogue 277 



References 278 



Index of Organisms 29() 



Index to Species of Actinomycetes 319 



General Index 322 



c 



QTO 



