| Pak. J. Bot., 38(1): 85-88, 2006. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
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UPTAKE OF NITRATE AND AMMONIUM ION BY CELL SUSPENSION CULTURES OF VIGNA RADIATA SAADIA AFZAL, MUHAMMAD ZIA AND *M. FAYYAZ CHAUDHARY
Abstract:
A study was conducted to examine the effect of pH on the uptake of NH4+
and NO3- by the cell suspension culture of Vigna radiata.
Uptake of NH4+ was faster than NO3- under all
conditions of the medium whereas uptake of NH4+ and NO3-
both were affected by the pH of the medium. Maximum uptake of NH4+
was observed on pH 4.5. Uptake of NO3- was faster in the
culture having pH 7.0. It is therefore concluded that pH of the medium
influence the uptake of both NH4+ and NO3- in
the cell suspension culture of Vigna radiata.
Department of Biological Sciences,Quaid-i-Azam University, Islamabad,
Pakistan. |
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