Chemical Basis for Greenbug Resistance in Small Grains: II. Identification of the Major Neutral Metabolite of Benzyl Alcohol in Barley 1

AUTOR(ES)

Juneja, Prem S.

RESUMO

(14C)Benzyl alcohol was administered either by uptake through the roots or by injection directly into the stems of wheat (Triticum aestivum L. em Thell), sorghum (Sorghum bicolor. L Moench) and two strains of barley (Hordeum vulgare L.). One strain of barley was susceptible to the greenbug (Schizaphis granium Rondani), and the other was greenbug-resistant. In all four plants, several radioactive metabolites were formed. The major neutral metabolite has been identified as benzyl-β-d-glucopyranoside. This glucoside was found to have no biological activity against the greenbug under conditions in which the parent compound, benzyl alcohol, inhibits the reproduction of this insect pest.

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