biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 26:29-33, 1984 | DOI: 10.1007/BF02880422

Mechanism of sulfate uptake by excised maize roots

S. P. Singh1, R. C. Pant1
1 Department of Biological Sciences, G. B. Pant University of Agriculture and Technology, Pantnagar, India

The mechanism of uptake of sulfate by excised maize roots (Zea mays L. cv. Ganga-5) was investigated. It was found that in the concentration range l × 10-9 M - 5 × 10-2 M, the sulfate uptake could be represented by a single multiphasic isotherm having four phases. Each phase covered a limited concentration range and obeyed Michaelis-Menten kinetics, which indicates mediation in sulfate uptake by a structure which changes characteristics (kinetic constants) at certain discrete salts concentrations (transition points).

Received: March 21, 1983; Accepted: June 28, 1983; Published: January 1, 1984  Show citation

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Singh, S.P., & Pant, R.C. (1984). Mechanism of sulfate uptake by excised maize roots. Biologia plantarum, 26(1), 29-33. doi: 10.1007/BF02880422
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