Kapitel in diesem Buch

1. Frontmatter I
2. Foreword V
3. Preface VII
4. Acknowledgments VIII
5. Chairmen of Symposium Sessions IX
6. Contents X
7. PART IM INTRODUCTION
8. A landmark in biology 1
9. Toward biological control of soil-borne plant pathogens 4
10. Discussion 16
11. PART II M THE SOIL MICROORGANISMS
12. The soil microflora—its nature and biology 19
13. Discussion 31
14. The Soil Fauna—Its Nature and Biology 33
15. Discussion 50
16. Growth and Reproduction of Soil Microorganisms in Relation to Substrate 52
17. Discussion 67
18. Dispersal of Soil Microorganisms 69
19. Discussion 81
20. Survival of Microorganisms in Soil 82
21. Discussion 97
22. Dormancy of Soil Microorganisms in Relation to Survival 99
23. Discussion 110
24. Summary and Synthesis of the Papers on the Soil Microorganisms 111
25. PART III THE SOIL ENVIRONMENT
26. Physical Factors of the Soil as They Affect Soil Microorganisms 113
27. Discussion 118
28. Chemical Factors of the Soil as They Affect Microorganisms 120
29. Discussion 139
30. PART IV THE PLANT ROOT AND THE RHIZOSPHERE
31. The anatomy of plant roots 143
32. Discussion 152
33. The Physiology of Plant Roots 154
34. Discussion 167
35. Plant Root Exudates and Their Influence upon Soil Microorganisms 170
36. Discussion 184
37. Nature and Importance of the Rhizosphere 187
38. Discussion 207
39. Influence of the Rhizosphere on the Mineral Nutrition of the Plant 210
40. Discussion 216
41. Mycorrhiza 218
42. Discussion 229
43. The Relation between Nodule Bacteria and the Legume Host in the Rhizosphere and in the Process of Infection 231
44. Discussion 246
45. Summary and Synthesis of Papers on the Soil, the Plant Root, and the Rhizosphere 248
46. Discussion 250
47. PART V PATHOGENESIS AND RESISTANCE
48. Pathogenesis by soil fungi 253
49. Discussion 266
50. The Relation of Plant-pathogenic Bacteria to the Soil 269
51. Discussion 282
52. Pathogenesis by Soil Nematodes 285
53. Discussion 300
54. Pathogenesis by Soil-borne Viruses 302
55. Discussion 312
56. Host Resistance as It Relates to Root Pathogens and Soil Microorganisms 314
57. Discussion 320
58. Summary and Synthesis of Payers on Pathogenesis and Resistance 321
59. Discussion 323
60. Pisatin Studies: The Relation of Phytoalexins to Disease Reaction in Plants 325
61. Discussion 335
62. PART VI THE MECHANISMS OF ANTAGONISM
63. The concept of competition in microbial ecology 337
64. Discussion 345
65. The Role of Biological Eradication in Root-Disease Control in Replantings of Hevea brasiliensis 348
66. Discussion 362
67. Antibiosis and Fungistasis of Soil Microorganisms 363
68. Discussion 369
69. Parasitism and Prédation of Soil Microorganisms 374
70. Discussion 389
71. PART VII THE SOIL INOCULUM
72. The dynamics of inoculum 393
73. The Theory of Inoculum 404
74. Baker papers 415
75. PART VIII INTERACTIONS BETWEEN SOIL, MICROORGANISMS, AND PLANT
76. Crop sequence in relation to soil-borne plant pathogens 421
77. Discussion 434
78. Summary and Synthesis of Papers on Antagonism and Inoculum Potential 436
79. Discussion 439
80. Plant Residues and Organic Amendments in Relation to Biological Control 440
81. Discussion 457
82. Effect of Mineral Nutrients on Soil Microorganisms and Plant Disease 460
83. Discussion 469
84. The Role of Chemicals in the Biological Control of Soil-borne Plant Pathogens 471
85. Discussion 477
86. The Effect of Altered Physical Condition of Soil on Biological Control 479
87. Discussion 493
88. The Reinfestation of Treated Soil 495
89. Discussion 507
90. Analysis of Biological Balance in Natural Soil 509
91. Discussion 517
92. Summary and Synthesis of Papers on Interactions Between the Soil, Microorganisms, and the Plant 519
93. Concluding Comments by Participants 520
94. Report of the Committee on Future Conferences 522
95. Participants 525
96. Index 537