Role of hydroxamic acids in the resistance of cereals to aphids |
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| Authors: | Victor H. Argandoña Juvenal G. Luza Hermann M. Niemeyer Luis J. Corcuera |
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| Affiliation: | Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile |
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| Abstract: | Hydroxamic acid concentration in Gramineae, both natural and incorporated, correlates with resistance to the aphid Metopolophium dirhodum. 2,4-Dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one, a hydroxamic acid isolated from corn extracts, is deleterious to aphids fed on artificial diets. It is proposed that hydroxamic acids act as naturally-occurring protective factors against M. dirhodum. |
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| Keywords: | Gramineae aphid: 1,4-benzoxazin-3-ones 1,3-benzoxazolinones resistance factor in Gramineae. |
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