Solute Uptake in Plants: A Flow/Force Interpretation

作者: M. Thellier , C. Ripoll , V. Norris , M. Nikolic , V. Römheld

DOI: 10.1007/978-3-540-68421-3_3

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摘要: Rates of uptake silicic acid as a function its concentration by the roots various plants have been interpreted their authors in framework top-down approach based on theoretical model Michaelis and Menten. Although hyperbola was fitted to set experimental points, this does not prove that all simplifying assumptions underlying Michaelis-Menten transport were warranted. In consequence, V j m - K -values, which inferred from these experiments, may characterize carrier mol- ecules involved process way -values classical enzymes (V = rate when carriers are saturated trans- ported substrate, 1/K affinity for substrate). Since measurements dealt only with solute entire biological systems (plant present case), here we adopt "top-top" approach. The idea is

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