uptake and Fate of C"<-laheled 2,4-D in Bean Stems 287 



18. , Fang, S. C, and Freed, V. H. Studies in plant metabolism. V. The 



metabolism of radioactive 2,4-D in etiolated bean plants. Plant Physiol. 30: 

 272-275. 1955. 



19. Klein, R. M., and Manos, G. The use of metal chelates for plant tissue cul- 

 ture. Ann. N. Y. Acad. Sci. 88: 416-125. 1960. 



20. Kraus, E. J., Brown, N. A., and Hamner, K. C. Histological reactions of bean 

 plants to indoleacetic acid. Bot. Gaz. 98: 370-420. 1936. 



21. Laibach, F., and Fischnich, O. Ober eine Testmethode zur Priifung der kal- 

 lusbildenden Wirkung von Wuchsstoffpasten. Ber. Deutsch Bot. Ges. 53: 

 469-477. 1935. 



22. Muzik, T. J., and Cruzado, H. J. Differentiation of bean internode segments 

 in tissue culture with added indoleacetic acid, 2,4-dichlorophenoxyacetic acid, 

 and maleic hydrazide. Bot. Gaz. 120: 57-59. 1958. 



23. Xitsch, J. P. Methods for the investigation of natural auxins and growth in- 

 hibitors. In: R. L. Wain and F. Wightman (eds.). The Chemistry and Mode 

 of Action of Plant Growth Substances, pp. 3-31. Butterworth Sci. Publ. Lon- 

 don. 1956. 



24. Reinhold, L. Release of ammonia by plant tissues treated with indole-3-acetic 

 acid. Nature. 182: 1022, 1023. 1958. 



25. Vlitos, A. J., and Meudt, W. The role of auxin in plant flowering. 1. A quan- 

 titative method based on paper chromatography for the determination of in- 

 dole compounds and of 3-indoleacetic acid in j^lant tissues. Contr. Boyce 

 Thompson Inst. 17: 197-202. 1953. 



26. Weintraub, R. L., Reinhart, J. H., ScherfE, R. A., and Schisler, L. C. Metabo- 

 lism of 2,4-dichlorophenoxyacetic acid. III. Metabolism and persistence in 

 dormant plant tissue. Plant Physiol. 29: 303, 304. 1954. 



27. White, P. R. The Cultivation of Animal and Plant Cells. 239 pp. Ronald 

 Press, Inc., New York. 1954. 



