Presence of a hydroxamic acid glucoside in wheat phloem sap, and its consequences for performance ofRhopalosiphum padi (L.) (Homoptera: Aphididae).
Phloem sap of wheat seedlings differing in whole leaf hydroxamic acid (Hx) concentrations was collected by cutting stylets of feeding aphids. DIMBOA-glucoside was the only Hx-related product found. Concentration of DIMBOA-glucoside in phloem sap showed a tendency to be negatively correlated with aphid performance.
Departamento de Ciencias Ecológicas Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile.
A
A
Givovich
J
J
Sandström
H M
HM
Niemeyer
J
J
Pettersson