ELECTROCHEMICAL POTENTIAL GRADIENTS OF IONS IN AN AQUATIC ANGIOSPERM POTAMOGETON SCHWEINFURTHII (BENN)

被引:17
作者
DENNY, P
WEEKS, DC
机构
[1] Botany Department, Makerere University College, Kampala
关键词
D O I
10.1111/j.1469-8137.1968.tb06400.x
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The concentrations of the major ions present in mature leaves of Potamogeton schweinfurthii and its natural pond waters were measured, together with membrane potential differences between the interior of leaf cells and the pond waters. Simple electrochemical interpretation of the data suggests active import of chloride, phosphate and sulphate, and active export of potassium and sodium ions. Calcium and magnesium ions may enter very slowly passively but may also be actively exported. Copyright © 1968, Wiley Blackwell. All rights reserved
引用
收藏
页码:875 / &
相关论文
共 6 条
[1]  
Briggs GE, 1961, ELECTROLYTES PLANT C
[2]   THE COLORIMETRIC DETERMINATION OF PHOSPHORUS [J].
FOGG, DN ;
WILKINSON, NT .
ANALYST, 1958, 83 (988) :406-414
[3]  
MACKERETH FJH, 1963, SOME METHODS WATER A, V21
[4]  
Robinson RA., 1959, ELECTROLYTE SOLUTION
[5]   CA FLUXES AND MEMBRANE POTENTIALS IN NITELLA TRANSLUCENS [J].
SPANSWICK, RM ;
WILLIAMS, EJ .
JOURNAL OF EXPERIMENTAL BOTANY, 1965, 16 (48) :463-+
[6]   THE DISTINCTION BY MEANS OF TRACERS BETWEEN ACTIVE TRANSPORT AND DIFFUSION - THE TRANSFER OF IODIDE ACROSS THE ISOLATED FROG SKIN [J].
USSING, HH .
ACTA PHYSIOLOGICA SCANDINAVICA, 1949, 19 (01) :43-56