Results 181 to 190 of about 2,850 (199)
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Leucine transport by the larval midgut of the parasitoid Aphidius ervi (Hymenoptera)
Journal of Insect Physiology, 2010The larval midgut of the hymenopteran parasitoid Aphidius ervi accomplishes a large transport of nutrients from the lumen to the haemocoel, providing most of the organic molecules necessary for rapid insect development. l-amino acids in general, and leucine in particular, are efficiently accumulated in the larval body.
L. Fiandra +3 more
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Functional bases of host‐acceptance behaviour in the aphid parasitoid Aphidius ervi
Physiological Entomology, 2007Abstract The host acceptance behaviour in Aphidius ervi is investigated, assessing the role of both external and internal host‐associated cues, offered to the experimental parasitoids with parafilm‐made aphid dummies.
A. Larocca +8 more
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Biochemical and metabolic alterations in Acyrthosiphon pisum parasitized by Aphidius ervi
Archives of Insect Biochemistry and Physiology, 1995AbstractBiochemical and metabolic alterations in Acyrthosiphon pisum (Harris) (Homoptera: Aphididae) parasitized by the endophagous Aphidius ervi Haliday (Hymenoptera: Braconidae) are reported. Total ecdysteroid titer was determined by radioimmunoassay.
PENNACCHIO, FRANCESCO +2 more
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Host regulation effects of ovary fluid and venom of Aphidius ervi (Hymenoptera: Braconidae)
Journal of Insect Physiology, 1998The host regulation effects of venom and ovary fluid of the endophagous braconid Aphidius ervi Haliday on the pea aphid, Acyrthosiphon pisum (Harris), have been studied. Extracts of ovaries and of venom glands were injected into nonparasitized 4th instar pea aphids, both separately and mixed. Aphids treated with parasitoid material died as 4th instars,
DIGILIO, MARIA CRISTINA +2 more
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Absorption of sugars and amino acids by the epidermis of Aphidius ervi larvae
Journal of Insect Physiology, 2003Aphidius ervi Haliday (Hymenoptera, Braconidae) is an endophagous parasitoid of several aphid species of economic importance, widely used in biological control. The definition of a suitable artificial diet for in vitro mass production of this parasitoid is still an unresolved issue that, to be properly addressed, requires a deeper understanding both of
GIORDANA B +9 more
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Patch Experience Changes Host Acceptance of the Aphid Parasitoid Aphidius ervi
Journal of Insect Behavior, 2015We investigated patch quality assessment by the parasitoid Aphidius ervi Haliday (Hymenoptera: Braconidae) when exploiting colonies of the lettuce aphid Nasonovia ribisnigri Mosley (Hemiptera: Aphididae). Three host patches of different qualities were sequentially offered to a naive female parasitoid.
Marie-Eve Lanteigne +3 more
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STUDIO DEL VELENO DEL PARASSITOIDE DI AFIDI APHIDIUS ERVI
2015Aphidius ervi (Hymenoptera, Braconidae) is an endophagous parasitoid of the pea aphid Acyrthosiphon pisum (Homoptera, Aphididae) and of various cereal aphids. Parasitized aphids show a notable inhibition of reproductive activity and metabolic alterations, which are nutritionally relevant for the developing wasp juveniles.
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