5-O-(alpha-D-galactopyranosyl)-D-glycero-pent-2-enono-1,4-lactone: characterization in the oxalate-producing fungus, Sclerotinia sclerotiorum

S E KeatesD L Zink


Extracts of sclerotia from Sclerotinia sclerotiorum, a fungal phytopathogen, contain two electrochemically-active constituents, D-glycero-pent-2-enono-1,4-lactone (trivial name: D-erythroascorbic acid), and a previously unidentified compound, here characterized as 5-O-(alpha-D-galactopyranosyl)-D-glycero-pent-2-enono-1,4-lactone on the basis of its physical and chemical properties and its two hydrolytic products, D-galactose and D-erythroascorbic acid. Treatment of this galactoside with alkaline hydrogen peroxide produces oxalic acid as observed earlier with erythroascorbic acid.


Apr 6, 2005·Fungal Genetics and Biology : FG & B·Alberto Baroja-MazoNicholas Smirnoff
May 5, 2001·Annual Review of Plant Physiology and Plant Molecular Biology·Nicholas SmirnoffFrank A Loewus
Nov 15, 2014·Critical Reviews in Biotechnology·Irina Yu BakuninaAntonio Trincone
May 13, 2008·Phytochemistry·Robert D HancockRoberto Viola
Nov 22, 2019·Journal of Food Science·Carolina Girotto PresseteLuciana Azevedo

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