Results 191 to 200 of about 9,381 (218)

Local age‐dependent neuromodulation in Rhodnius prolixus antennae

Archives of Insect Biochemistry and Physiology
AbstractKissing bugs do not respond to host cues when recently molted and only exhibit robust host‐seeking several days after ecdysis. Behavioral plasticity has peripheral correlates in antennal gene expression changes through the week after ecdysis.
Marcelo Gustavo Lorenzo, Gabriel da Rocha Fernandes, Jose Manuel Latorre‐Estivalis   +2 more
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Metabolism and gas exchange patterns in Rhodnius prolixus

Journal of Insect Physiology, 2017
Insect's metabolic rate and patterns of gas-exchange varies according to different factors such as: species, activity, mass, and temperature among others. One particular striking pattern of gas-exchange in insects is discontinuous gas-exchange cycles, for which many different hypotheses regarding their evolution have been stated.
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Histology of Rhodnius prolixus infected with Trypanosoma rangeli

Journal of Invertebrate Pathology, 1971
Abstract Intracellular stages of Trypanosoma rangeli develop in most tissues of infected Rhodnius prolixus , but they show a predilection for gut musculature, fat body, epidermis, and salivary glands. Heavy hemocoelic infections often result in severe nerve damage and hypertrophy of tracheal cells, which finally rupture and release flagellates. T.
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Uptake of yolk proteins in Rhodnius prolixus

Journal of Insect Physiology, 1986
The uptake of yolk protein in Rhodnius prolixus was studied in vivo and in vitro using a metabolically labelled [32P]yolk protein purified on a potassium bromide gradient. The [32P]vitellin is readily removed from haemolymph and specifically accumulates in the ovary.
Pedro L. Oliveira, Katia C. Gondim, Damião M. Guedes, Hatisaburo Masuda   +3 more
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Neuropeptides in the regulation of Rhodnius prolixus physiology

Journal of Insect Physiology, 2017
In the kissing bug Rhodnius prolixus, events such as diuresis, antidiuresis, development and reproduction are triggered by blood feeding. Hence, these events can be accurately timed, facilitating physiological experiments. This, combined with its relatively big size, makes R. prolixus an excellent model in insect neuroendocrinological studies.
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The histology of vitellogenesis in Rhodnius prolixus

Journal of Insect Physiology, 1968
Abstract The general histology and protein distribution as revealed by staining with mercury bromphenol-blue of the ovaries of mated Rhodnius prolixus were studied at various times after feeding. Vitellogenesis began on the second day after feeding and continued until the ninth day, when it gradually decreased. Vacuolation of the β and late γ oocytes
S. Patchin, K.G. Davey
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Spermatophore Production in Rhodnius prolixus

Journal of Cell Science, 1959
ABSTRACT On the basis of experimental and histochemical evidence it has been shown that the main body of the spermatophore of Rhodnius is a mucoprotein or neutral mucopolysaccharide originating in the transparent accessory glands of the male. A study of the events during copulation demonstrated that the spermatophore is formed inside the
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The involvement of insulin/ToR signaling pathway in reproductive performance of Rhodnius prolixus

Insect Biochemistry and Molecular Biology, 2021
Jimena Leyria, Ian Orchard, Angela B Lange   +2 more
exaly  

Control of Ingestion in Rhodnius prolixus Stål

Nature, 1963
LARVAE of Rhodnius take very large meals of blood1. If they are disturbed when half full they will readily resume feeding, but fully fed larvae will make no further attempts to suck blood until after they have moulted to the next instar. The following observations provide an explanation of the way in which the extent of feeding is controlled.
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Some consequences of copulation in Rhodnius prolixus

Journal of Insect Physiology, 1967
Abstract The increased egg production which accompanies mating is shown to be unaffected by allatectomy but is abolished by removal of neurosecretory cells. Part of the response to mating is due to an increased rate of oviposition, probably mediated by a myotropic factor released from neurosecretory cells.
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