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Titre :
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Living on a high sugar diet: the fate of sucrose ingested by a phloem-feeding insect, the pea aphid Acyrthosiphon pisum
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Auteurs :
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D. Ashford ;
W. Smith ;
A. Douglas
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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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2000
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Format :
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335-341
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Langues:
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= Anglais
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Mots-clés:
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Acyrthosiphon pisum
;
aphid
;
alpha-glucosidase
;
osmoregulation
;
sucrase
;
sucrose
;
transglucosidase
;
Composition biochimique
;
Alimentation artificelle
;
Saccharose
;
Glucose
;
Miellat
;
Aphididae
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Résumé :
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The natural diet of aphids, plant phloem sap, generally contains high concentrations of sucrose. When pea aphids (Acyrthosiphon pisum) were fed on chemically defined diets containing sucrose radiolabelled in the glucose or fructose moiety, 2 to 12-fold and 87 to 110-fold more radioactivity was recovered from the tissues and honeydew, respectively, of aphids that ingested [U-C-14-glucose]-sucrose than from those ingesting [U-C-14-fructose]sucrose. The total radioactivity recovered was 70% of the ingested [U-C-14-glucose]-sucrose and
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Source :
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Journal of Insect Physiology - 0022-1910, vol. 46, n° 3
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