Effect of content and distribution of hydroxamic acids in wheat on infestation by the aphid Schizaphis graminum
VH Argandoña, HM Niemeyer, LJ Corcuera - Phytochemistry, 1981 - Elsevier
The content of hydroxamic acids in wheat plants shows substantial variations between
different species and cultivars (1.0–6.3 mmol/kg fr. wt). It also varies with the age of the plant
and the organ assayed. The maximum concentration is reached by the fourth day in
epicotyls and roots. The amount in leaves at different plant ages is always higher in the
younger leaves. Based on feeding and infestation experiments, it is proposed that the
distribution of aphids on leaves of different ages is regulated by the hydroxamic acid content.
different species and cultivars (1.0–6.3 mmol/kg fr. wt). It also varies with the age of the plant
and the organ assayed. The maximum concentration is reached by the fourth day in
epicotyls and roots. The amount in leaves at different plant ages is always higher in the
younger leaves. Based on feeding and infestation experiments, it is proposed that the
distribution of aphids on leaves of different ages is regulated by the hydroxamic acid content.