[PDF] Top 20 The Cuticular Pattern in an Insect, Rhodnius Prolixus Stål

... The effect upon the adult cuticle of interchanging squares of integument from adjacent segments when one square is close to the posterior rntersegmental membrane and the other is close t[r] ... See full document

... Our inclusion of ANP in the present study was motivated in part by its well-documented action via cyclic GMP in vertebrate systems and also because of early reports that plasma taken from dogs undergoing atrial ... See full document

... When a square of integument containing an intersegmental membrane is excised and implanted with normal orientation into the centre of a tergite, the gradients are apposed as in Text-fig,[r] ... See full document

... From these results it is concluded that exposure of Rhodnius adults to 34 °C immediately after feeding results in a delay in oviposition only during the first reproductive cycle that fol[r] ... See full document

... It is interesting to note that the delay in the moulting period induced by exposure to high temperature corresponds with the delay in: a the mitotic activity of the epidermis, b the acti[r] ... See full document

... Unfed larvae exposed to high temperature exhibit delayed moulting when placed at normal temperature after feeding, and prolonged exposure also inhibits micturition which normally occurs [r] ... See full document

... During the period of exposure to high temperature, the moulting hormone is not secreted Wigglesworth, 1952, 1955, most probably due to the failure of the secretion of the brain hormone O[r] ... See full document

... The course of oxygen consumption of normal males and females is compared with that of insects placed immediately after feeding at 34 °C and their respiration measured at the same tempera[r] ... See full document

... To demonstrate whether the adult-specific proteins found in the eggs are absorbed from the blood, female Rhodnius haemolymph was labelled with fluorescein and injected into female insect[r] ... See full document

... bug Rhodnius prolixus Stål 1859 (Hemiptera: Reduviidae) is an important vector of Chagas disease in northern South America and Central America, and it remains a classical model in insect ...of ... See full document

... R. prolixus, the apical diameter in the fifth-instar larva is approximately 8 µm and it has been estimated that a pump capable of developing between 2 and 9 atm of pressure is required for a fifth- instar larvae ... See full document

... both Rhodnius prolixus and the closely related species Triatoma ...activity pattern is bimodal, each activity burst being controlled by an independent oscillator (Constantinou, 1984; Lazzari, ... See full document

... D, detail of this region of tube, am, ampulla; amp, processes of ampulla cells; Is, lower proximal segment of Malpighian tube; m, muscle fibres; mg, mid-gut; mt, Malpighian tubes; r, rec[r] ... See full document

... species. Rhodnius prolixus, one of the main vectors of Chagas disease, is a species with arboreal habit, associated with palm trees [22,23], and believed to be associated to birds ...R. prolixus ... See full document

... A theory of uric acid excretion is put forward according to which potassium or sodium acid urate is secreted in solution in the upper part of the Malpighian tube, and water and base reab[r] ... See full document

... The number of plaques on half the third abdominal tergite in 4th and $th stage nymphs, showing the percentage increase when the 4th stage nymphs were normal, excessively stretched, or un[r] ... See full document

... The fact that mated animals lacking their neurosecretory cells produce approximately the same number of eggs as unoperated virgins when observed over a number of consecutive feeding cycl[r] ... See full document

... ii The converse experiment consisted in implanting into the decapitated 4th-stage larva a pair of thoracic glands removed from a 5th-stage larva, 10 days after feeding, into which 10 mm.[r] ... See full document

... haematophagous insect Rhodnius prolixus is controlled by a diuretic hormone and demonstrated the role of the Malpighian tubules in meeting the volumic, osmotic and ionic challenges posed by an ... See full document

... The profuse diuresis of freshly fed 5th-stage larvae of Rhodnius is caused by the release into the haemolymph of a diuretic hormone from the fused ganglionic mass in the mesothorax, prob[r] ... See full document