CONTENTS 



Preface ix 



1. Introduction 1 



Fungus Physiology in Relation to Other Sciences — Aims — Scope — Historical 

 Development. 



2. Culture Media 8 



ICinds of Media — Natural Versus Synthetic Media — Choice and Preparation 



of Media — Ways of Expressing Concentration — Comparison of Media — - 

 Summary. 



3. Growth 24 



Phases of Growth — Rate of Growth — Ways of Measuring Growth — Methods 



of Presenting Results — Factors Affecting Growth — Effect of External 

 Factors on Morphology — Summary. 



4. Enzymes and Enzyme Action 45 



Classification of Enzymes — Chemical Nature of Enzymes — Factors Affecting 

 Enzyme Activity — Mechanism of Enzyme Action — Adaptive Enzymes- 

 Energy and Energy Utilization by Fungi — Summary. 



5. Essential Metallic Elements 65 



Biological Essential Elements — The Essential Macro Elements — Essential 

 Micro Elements — Periodicity of Biologically Essential Elements — Summary. 



6. The Essential Xonmetallic Elements Other Than Carbon 87 



Hydrogen — Oxygen — Sulfur — Phosphorus — Nitrogen — Other Nonmetallic 

 Elements — Summary. 



7. Carbon Sources and Carbon Utilization 116 



Monosaccharides and Related Compounds — Organic Acids — Glycosides — 

 Oligosaccharides — Polysaccharides — Heterotrophic Utilization of Carbon 

 Dioxide — Utilization of Carbon — Summary. 



8. Hydrogen-ion Concentration 149 



Ionization of Compounds — The Meaning of pH — Buffers and Buffer Capacity 



— Methods of Determining pH Values — Effects on Fungi — Summary. 



9. Vitamins and Growth Factors 171 



Part I. General Considerations — Synthesis of Vitamins by Fungi — Vitamin 



xi 



