The Feeding Response of Rhodnius Prolixus to Blood Fractions, and the Role of Atp
نویسنده
چکیده
Second-instar larvae of Rhodnius prolixus will gorge on washed human erythrocytes suspended in Ringer, but not on plasma, either with or without platelets. The ED 50 of erythrocytes is 4-5 vol of packed cells per 1000 vol of Ringer. Erythrocyte 'ghosts' are non-stimulatory, whereas the haemolysate induces gorging. Phagostimulation by 'ghosts' is restored by resealing them in 1 HIM adenosine triphosphate. Evidence is presented that Rhodnius responds to blood via a release of ATP from a few erythrocytes close to the epipharyngeal sense organs.
منابع مشابه
Physiological Activity of Neuropeptide F on the Hindgut of the Blood-Feeding Hemipteran, Rhodnius prolixus
Current hypotheses propose that, in the invertebrates, neuropeptide F (NPF), the vertebrate NPY homologue, may be capable of regulating responses to diverse cues related to nutritional status and feeding. An investigation into the effects of Drosophila melanogaster NPF (DrmNPF) and Anopheles gambiae NPF (AngNPF) on hindgut physiology of Rhodnius prolixus Stal (Heimptera: Reduviidae) suggests a ...
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