Biological Effects of Radiation: Mechanism and Measurement of Radiation, Applications in Biology, Photochemical Reactions, Effects of Radiant Energy on Organisms and Organic Products - Vol. 2

By Benjamin M. Duggar | Go to book overview

in water is reported a source of radiation, while the solution of sugar in water is not. Extensive work on chemical radiation has been reported by Wolff and Ras (308), Ruyssen (237, 238), Frank (79), Audubert (6), Potozky (212), Braunstein and Potozky (32, 33), and Braunstein and Severin (34).

Before ending this review, attention should be called to the cancer problem. Since it has been reported that blood of cancerous people will not radiate and cancer tissue itself will ( Gurwitsch114, 128, 129, 133, 135, 137, Karpass and Lanschina, 153, Kisliak-Statkewitsch, 156, Siebert, 268), this has suggested a study for the extremely difficult and involved problem of cancer. We warn here against a careless optimism, which expressed itself especially in a number of popular articles and has often prejudiced the sincere worker from taking this problem seriously. It can safely be stated that even if the work on the mitogenetic-ray problem is entirely correct--and before we can accept this, many points must be cleared up--the cancer problem, as such, should be left to those who have had considerable experience with it, and if it should prove possible to put in the hands of the cancer worker good reliable detecting methods for mitogenetic rays, a great service would have been rendered. Speculation based on small amounts of material or data should be avoided. More and carefully controlled work on the fundamental methods of this problem and more reliable proof of the existence of mitogenetic rays are needed before a satisfactory evaluation can be expected.


CONCLUSIONS

The most critical investigators must admit--when going over at least the more simple experiments, and seeing the large number of positive results reported from different laboratories--that the trend of results points to some uniform effect, but the interpretation of the effect need not necessarily be what the investigators claim for it. But even a convinced believer in the existence of mitogenetic rays must admit that there are so many contradictions and slightly supported statements concerning the work that it cannot be accepted in the present form. It is clear that before the advanced work on spectral analysis can be discussed intelligently the fundamental facts must be cleared up and put on such a basis that they can be handled by any careful worker It seems to the reviewer that more harm has been done to the mitogeneticray problem by its overenthusiastic supporters than by those who have maintained an interested but critical attitude toward the problem.

We have given here only a bird's-eye view of the application of mitogenetic rays. Those interested in different phases of the problem will find the available material in the literature.

The books (97, 108) published on the mitogenetic-ray problem make it very difficult to evaluate the material. There is a tendency to accept

-944-

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Biological Effects of Radiation: Mechanism and Measurement of Radiation, Applications in Biology, Photochemical Reactions, Effects of Radiant Energy on Organisms and Organic Products - Vol. 2
Table of contents

Table of contents

  • Title Page iii
  • Contents v
  • Xix Photoperiodism 677
  • Introduction 677
  • References 709
  • Xx Plant Growth in Continuous Illumination 715
  • References 725
  • Xxi the Effects of Light Intensity Upon Seed Plants 727
  • Introduction 727
  • References 757
  • Xxii Effects of Different Regions of the Visible Spectrum Upon Seed Plants 763
  • Introduction 763
  • Concluding Remarks 787
  • References 788
  • Xxiii Effect of the Visible Spectrum Upon the Germination of Seeds and Fruits 791
  • References 823
  • Xxiv the Effects of Visible and Ultra-Violet Radiation on the Histology of Plant Tissues 829
  • References 838
  • Xxv Some Infra-Red Effects on Green Plants 841
  • References 851
  • Xxvi the Effect of Ultra-Violet Radiation Upon Seed Plants 853
  • Introduction 853
  • Concluding Remarks 881
  • References 882
  • Xxvii the Effects of Radiation on Fungi 889
  • Introduction 889
  • References 910
  • Xxviii the Problem of Mitogenetic Rays 919
  • Introduction 919
  • Conclusions 944
  • References 946
  • Xxix Effects of X-Rays Upon Green Plants 961
  • Introduction 961
  • General Summary 980
  • References 983
  • Xxx the Effects of Radium Rays on Plants 987
  • References 1009
  • Xxxi the Light Factor in Photosynthesis 1015
  • References 1051
  • Xxxii the Influence of Radiation on Plant Respiration and Fermentation Charles J. Lyon 1059
  • Introduction 1059
  • Summary 1071
  • References 1072
  • Xxxiii Growth Movements in Relation to Radiation 1073
  • Xxxiv Chlorophyll and Chlorophyll Development in Relation to Radiation 1093
  • References 1104
  • Xxxv Radiation and Anthocyanin Pigments 1109
  • Introduction 1109
  • Conclusion 1116
  • References 1118
  • XXXVI - Effects of Radiation on Bacteria 1119
  • References 1141
  • Xxxvii the Effects of Radiation on Enzymes 1151
  • References 1160
  • Xxxviii Induced Chromosomal Aberrations in Animals 1167
  • Introduction 1167
  • References 1202
  • Xxxix Radiation and the Study of Mutation in Animals 1209
  • Introduction 1209
  • References 1252
  • Xl Induced Mutations in Plants 1263
  • Introduction 1263
  • References 1278
  • Xli Induced Chromosomal Alterations 1281
  • References 1293
  • Xlii Induced Chromosomal Alterations in Maize 1297
  • References 1308
  • Xliii Biological Aspects of the Quantum Theory of Radiation Absorptions in Tissues 1311
  • References 1326
  • Subject Index 1331
  • Alphabetical List of Contributors 1343
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