Membrane and ion transport properties in cereals under acidic and alkaline stress: III. Electron spin resonance study of microsomal fractions of rice and wheat root cells

A. Bérczi, L. Erdei, Ferenc Zsoldos

Research output: Contribution to journalArticle

Abstract

An electron spin resonance study of fatty acid spin labels incorporated into plasmalemma from rice (Oryza sativa L. cv. Dunghan Shali) and wheat (Triticum aestivum L. cv. GK Szeged) roots is presented. Plasmalemma‐rich microsomal fractions of rice and wheat roots were prepared by centrifugation and final pellets were resuspended in buffer solution with pH values from 3 to 8 in the presence and absence of Ca2+. The effects of pH and Ca2+ on the hyperfine splitting extremum 2A11 were measured and compared to earlier influx experiments on the same roots. The possible contribution of passive ion transport to the permeability properties of these roots is discussed.

Original languageEnglish
Pages (from-to)475-478
Number of pages4
JournalPhysiologia Plantarum
Volume53
Issue number4
DOIs
Publication statusPublished - 1981

Keywords

  • Ca
  • ESR
  • membrane vesicles
  • pH
  • spin label

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science
  • Cell Biology

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