Effects of Controlled Atmospheres on Production of Sesquiterpenoid Stress Metabolites by White Potato Tuber: Possible Involvement of Cyanide-resistant Respiration

Overview

Journal Plant Physiol

Specialty Physiology

Date 1979 Feb 1

PMID 16660728

Citations 5

Authors

L M Alves

E G Heisler

J C Kissinger

J M Patterson

E B Kalan

Affiliations

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Abstract

Levels of katahdinone (solavetivone), lubimin, rishitin, and phytuberin, sesquiterpenoid stress metabolites of white potato (Solanum tuberosum), were monitored in tuber slices which were challenged with an extract of Phytophthora infestans and incubated under controlled atmospheres. A mixture of ethylene in air enhanced stress metabolite production. This enhancement was amplified by higher partial pressures of oxygen. Stress metabolite production was inhibited by salicylhydroxamic acid. These results suggest the involvement of cyanide-resistant respiration in the production of potato stress metabolites, compounds which may serve as phytoalexins.

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Biotransformation of potato stress metabolites rishitin, lubimin, and 15-dihydro lubimin by potato and soybean cell cultures.

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Inhibition of phytoalexin synthesis in arachidonic Acid-stressed potato tissue by inhibitors of lipoxygenase and cyanide-resistant respiration.

Stelzig D, Allen R, Bhatia S Plant Physiol. 1983; 72(3):746-9.

PMID: 16663078 PMC: 1066313. DOI: 10.1104/pp.72.3.746.

An in vitro control mechanism for potato stress metabolite biosynthesis.

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PMID: 16662127 PMC: 426122. DOI: 10.1104/pp.68.6.1465.

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