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Total Uptake and Incorporation into DNA of 3 H-Thymidine, 3 H-Deoxyuridine and 3 H-Thymine in the Primary Root of Vicia faba L.: I. INTACT ROOTS

R. D. MACLEOD
Journal of Experimental Botany
Vol. 23, No. 77 (November 1972), pp. 899-906
Published by: Oxford University Press
Stable URL: http://www.jstor.org/stable/23688704
Page Count: 8
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Total Uptake and Incorporation into DNA of
          3
          H-Thymidine,
          3
          H-Deoxyuridine and
          3
          H-Thymine in the Primary Root of Vicia faba L.: I. INTACT ROOTS
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Abstract

Total uptake and incorporation of 3H-thymidine, 3H-thymine, and 3H-deoxyuridine into DNA have been investigated in the apical 3 cm of the primary root of Vicia faba. Evidence has been obtained that endogenous TdR in these roots may be transported either apically or basally; apical movement being greater than movement from the apex towards the base of the root. The results have been discussed with respect to the possible distribution of endogenous pools of thymidine, thymine, and deoxyuridine in the primary root of V. faba.

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