Kinetic of calcium absorption in presence of magnesium in excised leaf tissue of coffee-tree (Coffea arabica L., cv 'Mundo Novo')

Authors

  • José R. Sarruge U. S. P; E. S. A. Luiz de Queiroz; Departamento de Química
  • José Biasi EMBRAPA; Estação Experimental de Rio Caçado
  • Paulo R. C. Castro U. S. P; E. S. A. Luiz de Queiroz; Departamento de Botânica
  • Braz V. Defelipo E. S. A. U. F.; Departamento de Fitotecnia
  • Celi Feitosa A. E. S. P.
  • Francisco J. Krug CENA
  • Maurelio Morelli F. A. U. F.; Departamento de Solos

DOI:

https://doi.org/10.1590/S0071-12761973000100033

Abstract

This study based on LINEWEAVER & BURK's (1934) equation was made to verify both competitive or not effect of Mg2_f in absorption of Ca2+ ion. Solution of CaCl2 was traced with 45Ca. Calcium in different concentration was added to excised leaf tissue of Coffee-tree (Coffea arabica L.) in presence or not of magnesium, according to SMITH & EPSTEIN's (1964a.; 1964b.) technique. Special conduction in statistics was applied. Magnesium ion compete with calcium ion to active centers of metabolism transport.

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Published

1973-01-01

Issue

Vol. 30 (1973)

Section

naodefinida

How to Cite

Sarruge, J. R., Biasi, J., Castro, P. R. C., Defelipo, B. V., Feitosa, C., Krug, F. J., & Morelli, M. (1973). Kinetic of calcium absorption in presence of magnesium in excised leaf tissue of coffee-tree (Coffea arabica L., cv ’Mundo Novo’) . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 30, 441-456. https://doi.org/10.1590/S0071-12761973000100033