Summary
2-β-Glucosyl-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA-Glc), the main hydroxamic acid from maize and wheat, and its aglucone, decreased survival ofSchizaphis graminum reared on artificial diets. Both compounds were toxic for aphids and acted as feeding deterrents, at concentrations as low as 1 mM. The natural concentrations of glucosides of hydroxamic acids in wheat leaves reach up to 6 mmoles/kg fresh weight, thus falling within the range in which DIMBOA-Glc causes delecterious effects to diet-fed aphids.
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To whom correspondence should be addressed. THis work was supported by grants from International Foundation for Science (484), Universidad de Chile (N-1654) and the Agency for International Development.
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Corcuera, L.J., Queirolo, C.B. & Argandoña, V.H. Effects of 2-β-D-glucosyl-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one onSchizaphis graminum (rondani) (insecta, aphididae) feeding on artificial diets. Experientia 41, 514–516 (1985). https://doi.org/10.1007/BF01966177
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DOI: https://doi.org/10.1007/BF01966177