Electrical signaling in Aloe vera induced by localized thermal stress

Alexander G. Volkov, Ryan D. Lang, Maia I. Volkova-Gugeshashvili

Research output: Contribution to journalArticlepeer-review

Abstract

Action potentials in higher plants are theorized as the information carriers in intercellular and intracellular communication in the presence of environmental stressors. Among the most common stressors is heat shock. Under stressful conditions, the response reactions of plant tissues and organs can be local or transmitted over long distances. In this article, the speeds of propagation of thermally induced action potentials in green plants are discussed, and their speeds were found to be comparable to those occurring in various mammalian species. These rapid action potentials in green plants were recorded in real time using modern data acquisition techniques. According to our measurements, a single application of localized heat stress induces fast action potentials in Aloe vera (67 m/s). Electrical signals propagated along all leaves of the A. vera plants were studied. Possible pathways for electrical signal propagation in vascular plants are also discussed.

Original languageEnglish (US)
Pages (from-to)192-197
Number of pages6
JournalBioelectrochemistry
Volume71
Issue number2
DOIs
StatePublished - Nov 2007
Externally publishedYes

Keywords

  • Action potential
  • Aloe vera
  • Cold stress
  • Electrical signaling
  • Heat stress
  • Plant electrophysiology

ASJC Scopus subject areas

  • Biophysics
  • Physical and Theoretical Chemistry
  • Electrochemistry

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