Radial water and solute flows in roots of Zea mays: I. Water flow

H. Ginsburg*, B. Z. Ginzburg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Water flows are described in root segments from which the central stele had been removed ('sleeves'). The water flow was measured either as an exchange flow, using tracers, or as net osmotic flow. Metabolic inhibitors inhibited both types of flow. From the above measurements, the over-all hydraulic conductivity (Lp) and permeability coefficient (ω) for water were calculated. By measuring the effect of water drag on the flow of sucrose and urea, reflection coefficients (σ) were calculated for sucrose and urea. A model of water flow, which includes coupling to chemical reactions, is discussed.

Original languageEnglish
Pages (from-to)580-592
Number of pages13
JournalJournal of Experimental Botany
Volume21
Issue number3
DOIs
StatePublished - Aug 1970

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