Transmembrane calcium fluxes during Al stress

Z. Rengel*, M. Piñeros, Mark Tester

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The primary Al lesion is suggested to be blockage of the root plasma membrane Ca2+ channels. Resulting decrease in net Ca2+ uptake into the root tip cells leads to Ca2+ deficiency in the cytoplasm and disturbance of the cell Ca2+ homeostasis, effects that can deleteriously influence cell structure and function. Contribution of internal Ca2+ stores to maintaining cytoplasmic Ca2+ concentration at physiological levels is considered to be insufficient in meristematic cells at the root tip. It is suggested that differential blockage of Ca2+ channels may be at the core of differential tolerance to Al, opening up the possibility of manipulating Al tolerance at the molecular level.

Original languageEnglish (US)
Pages (from-to)125-130
Number of pages6
JournalPlant and Soil
Volume171
Issue number1
DOIs
StatePublished - Apr 1 1995

Keywords

  • aluminium toxicity
  • calcium channels
  • plasma membrane
  • stimulus/response coupling

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

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