1. App, A. A., and A. T. Jagendorf: 14C-Amino acid incorporation by spinach chloroplast preparations. Plant Physiol. 39, 772?776 (1964).
2. Bacon, J. S. D., I. R. MacDonald, and A. H. Knight: The development of invertase activity in slices of the root of Beta vulgaris L. washed under aseptic conditions. Biochem. J. 94, 175?182 (1965).
3. Bonner, W. D., Jr.: In: Plant biochemistry, p. 92, ed. by J. Bonner and J. E. Varner. London: Academic Press 1965.
4. Borst, P., A. M. Kroon, and G. J. C. M. Ruttenberg: In: Genetic elements, properties and function, p. 105, ed. by D. Shugar. London and New York: Academic Press 1967.
5. Chen, J., I. Shafrir, and N. De Groot: Studies on wheat germ ribosomes. Israel J. Chem. 4, 61 (1966).