Effects of K$(86Rb) transport and the net H$ efflux on electrical properties along bean (phaseolus mungo) roots

Hideo Ishikawa, Ken Yamamura, Michiaki Furukoshi, Eiji Ohta, Makoto Sakata

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The three-phase electric potential distribution along two-day-old intact Phaseolus roots was investigated in relation to cell growth and K$ and H$ transports using tracer K$(86Rb) and pH experiments. The activity of a radial electrogenic component located between the cortical cells and the external solution was high in the elongating region and in the completely matured region. The activity of another radial electrogenic component located between the cortical cells and the stele was maximal in the elongating region. Both potassium uptake from the external solution into the cortical cells and H$ excretion took place mainly in these regions.

Original languageEnglish
Pages (from-to)1045-1051
Number of pages7
JournalPlant and Cell Physiology
Volume25
Issue number6
Publication statusPublished - 1984 Sep
Externally publishedYes

Keywords

  • Electric potential
  • Elongating region (root)
  • Phaseolus mungo
  • Potassium
  • Proton

ASJC Scopus subject areas

  • Physiology
  • Plant Science
  • Cell Biology

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    Ishikawa, H., Yamamura, K., Furukoshi, M., Ohta, E., & Sakata, M. (1984). Effects of K$(86Rb) transport and the net H$ efflux on electrical properties along bean (phaseolus mungo) roots. Plant and Cell Physiology, 25(6), 1045-1051.