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Titre :
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Presence of a Hydroxamic Acid Glucoside in Wheat Phloem Sap, and Its Consequences for Performance of Rhopalosiphum padi (L) (Homoptera, Aphididae)
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Auteurs :
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A. Givovich ;
J. Sandstrom ;
H. Niemeyer ;
J. Pettersson
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Type de document :
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article/chapitre/communication
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Année de publication :
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1994
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Format :
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1923-1930
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Langues:
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= Anglais
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Mots-clés:
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Hydroxamic Acids
;
Phloem Sap Analysis
;
Aphid Resistance
;
Cereals
;
Wheat
;
Rhopalosiphum-Padi
;
Homoptera
;
Aphididae
;
Stylectomie
;
Analyse de seve
;
Substance antiappetente
;
Croissance ponderale
;
Rhopalosiphum padi
;
Triticum aestivum
;
Gramineae
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Résumé :
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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.
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Source :
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Journal of Chemical Ecology - 0098-0331, vol. 20, n° 8
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