Abstract
WE have previously reported1,2 results showing that exogenous tritiated DNA molecules can migrate in the xylem of tomato plant and, after some degradation, be taken up by the meristematic cells. We now report our investigation of the nature of the radioactive molecules recovered after incubation of the plant by bacterial DNA using ultracentrifugation in a caesium chloride gradient.
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References
Stroun, M., Anker, P., Charles, P., and Ledoux, L., Arch. Intern. Physiol. Biochim., 74, 320 (1966).
Stroun, M., Anker, P., Charles, P., and Ledoux, L., Nature, 212, 397 (1966).
Marmur, J., J. Mol. Biol., 3, 208 (1961).
Ledoux, L., in Progress in Nucleic Acid Research and Molecular Biology (edit. by Davidson, J. N., and Gohn, W. E.), 4, 231 (Academic Press, 1965).
Ledoux, L., and Huart, R., Arch. Intern. Physiol. Biochim., 73, 873 (1965).
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STROUN, M., ANKER, P., CHARLES, P. et al. Translocation of DNA of Bacterial Origin in Lycopersicum esculentum by Ultracentrifugation in Caesium Chloride Gradient. Nature 215, 975–976 (1967). https://doi.org/10.1038/215975b0
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DOI: https://doi.org/10.1038/215975b0
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