TY - JOUR
T1 - Radial water and solute flows in roots of Zea mays
T2 - I. Water flow
AU - Ginsburg, H.
AU - Ginzburg, B. Z.
PY - 1970/8
Y1 - 1970/8
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0000099199&partnerID=8YFLogxK
U2 - 10.1093/jxb/21.3.580
DO - 10.1093/jxb/21.3.580
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AN - SCOPUS:0000099199
SN - 0022-0957
VL - 21
SP - 580
EP - 592
JO - Journal of Experimental Botany
JF - Journal of Experimental Botany
IS - 3
ER -