100 



MUTATION AND PLANT BREEDING 



Table 7. — Chemical Factors Affecting the Radiosensitivity of Plants. * 



Chemical 



References 



Chemical 



References 



A. Antioxidants (lipid) 



69(pages 81,91), 

 139 



B. Auxins (indoleacetic acid) 53(page 10), 105 



C. Carcinogens 

 1. Benzopyrene 



157(page 1522) 2. Urethane 



D. Chelating and complexing agents 



1. Cupferron 202(page 366) 3. 



2. Dowex-50 160 



Ethylenediamine 

 tetraacetic acid 

 (EDTA or Versene) 



137,202 



E. Enzymes and cofactors 



1. Adenosinetriphosphate 

 (ATP) 



2. Catalase 



3. Cytochrome C 



F. Metabolic inhibitors 



1. Carbon monoxide 



2. Cyanide 



3. Maleic hydrazide 



G. Metabolites 



1 . Carbon dioxide 



2. Carboxylic acids: 

 malonic and maleic acids 



3. Desoxy pentose nucleic 

 acid (DNA) 

 (Bacteria, U.V.) 



4. Digitalis glycoside 



H. Miscellaneous 



1 . Casein hydrolysate 



2. "Kollidon" 



I. Mitotic poisons 



1 . Acenaphthene 



2. Colchicine 



J. Mutagens (chemical) 

 1. Mustard oil 



130(page 207) 2. Nitrogen mustard 



160 



*After Gunckcl and Sparrow (62), Also, see footnote to Table 6. 



