Development of cyanide-resistant respiration in mitochondria from potato tubers treated with ethanol, acetaldehyde, and acetic acid

Harry W. Janes, Anna Rychter, Chaim Frenkél

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Treatment of intact potato (Solanum tuberosum L.) tubers with acetaldehyde, ethanol or acetic-acid vapors led to a respiratory upsurge which was further increased when the volatiles were applied in 100% O2. Mitochondria from tubers held in 100% O2 (O2 control) displayed a substrate state, state 3, and state 4 in respiration, whereas in mitochondria from the volatile-treated tubers the respiratory rate of the different states was virtually indistinguishable. This respiratory pattern was companied by the development of a cyanide-resistant respiration since these mitochondria exhibited resistance to CN and sensitivity to CN+salicylhydroxamic acid. Acetaldehyde-treated potatoes showed a time-course development (up to 36 h) of cyanide resistance and concomitant sensitivity to salicylhydroxamic acid, indicating the onset of synthetic processes leading to the observed changes in mitochondrial respiration.

Original languageEnglish (US)
Pages (from-to)201-205
Number of pages5
JournalPlanta
Volume151
Issue number3
DOIs
StatePublished - Mar 1981

All Science Journal Classification (ASJC) codes

  • Genetics
  • Plant Science

Keywords

  • Acetaldehyde
  • Acetic acid
  • Cyanide resistance
  • Ethanol
  • Mitochondria (respiration)
  • Respiration (cyanide resistant)
  • Solanum

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