Results 111 to 120 of about 351 (146)

Effects of allatectomy and ovariectomy on cuticular hydrocarbons inCalliphora vomitoria(diptera)

Archives of Insect Biochemistry and Physiology, 1994
AbstractThe relationships between female attractiveness, cuticular hydrocarbons, and levels of juvenile hormone and ecdysteroids were studied inCalliphora vomitoria. The experiments were conducted at 48 and 72 h post‐emergence, according to attractiveness appearance and increase. The 48‐h‐old allatectomized females were less attractive than the control
Marie Trabalon, Mireille Campan, Nadine Hartmann, Jean‐Claude Baehr, Patrick Porcheron, Jean‐Luc Clément   +5 more
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Effects of long-term cardiatectomy-allatectomy on mitochondrial respiration in the cockroach, Blaberus discoidalis

Journal of Insect Physiology, 1969
Abstract A biochemical relationship is described between the corpora cardiaca and fat body mitochondria of Blaberus discoidalis Serv. Polarographic measurements reveal that both fat body homogenates and mitochondria from 30-day cardiatectomized-allatectomized males consume oxygen at significantly lower rates than controls.
L.L. Keeley, Stanley Friedman
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Effect of allatectomy on the growth of the male desert locust during adult development

Journal of Insect Physiology, 1971
Abstract The effect of allatectomy on the development of the adult male desert locust ( Schistocerca gregaria ) has been investigated. All operations were carried out at 4 days after adult emergence and allatectomized insects were compared with sham operated controls. Both sham operated and allatectomized insects showed some reaction to the operation
Walker, P., Bailey, E.
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Circadian rhythmicity and capacity for enforced activity in the cockroach, Blaberus discoidalis, after cardiacectomy-allatectomy

Journal of Insect Physiology, 1972
Abstract The capacity for enforced activity in response to electrical stimulus and circadian locomotor activity were recorded for adult male Blaberus discoidalis after long-term cardiacectomy-allatectomy (CC − +CA − ). CC − +CA − cockroaches showed longer periods of exhaustion during shock stimulated activity than either normal or CA − animals ...
Merle Shepard, Larry L. Keeley
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Allatectomy and food selection in males of Locusta

Journal of Insect Physiology, 1975
Abstract Removing the corpora allata from young males of Locusta does not alter the overall amount of food they consume or the quantity of faeces they produce. However, allatectomized males eat less fresh grass and more dry bran than the control males. This observation is discussed in relation to the maturation process and other events in the adult
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Chemical allatectomy of late Locusta embryos by a synthetic precocene and its effect on hopper morphogenesis

Journal of Insect Physiology, 1984
Abstract The anti-allatin substance, 7-ethoxy-precocene II (= “precocene III”) was topically applied to eggs of Locusta migratoria migratorioides with fully grown embryos in stage XX (about 64 ± 4% of the whole period of egg development). A day after precocene application the eggs were washed for 10–15 s in acetone and then transferred to clean ...
N. Aboulafia-Baginsky, M.P. Pener, G.B. Staal   +2 more
openaire   +1 more source

The effects of allatectomy on the lipid composition of the fat body and haemolymph of adult Locusta

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1975
Abstract 1. 1. Lipid accumulated in the fat body but not the haemolymph of adult male and female Locusta after allatectomy. 2. 2. Triglycerides were the major fat body lipids, although phospholipids, diglycerides and free fatty acids were also present. 3. 3.
E. Bailey, J.A. Horne, M.E.G. Izatt, L. Hill   +3 more
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Effect of allatectomy on fat body lipogenic enzymes of the male desert locust during adult development

Journal of Insect Physiology, 1971
Abstract The effect of allatectomy on the changes in activity of enzymes concerned with the conversion of dietary carbohydrate to lipid by the fat body during development has been investigated. The enzymes studied were phosphofructokinase, pyruvate kinase, malic enzyme, glucose-6-phosphate dehydrogenase isocitrate dehydrogenase, ATP citrate lyase ...
Walker, P., Bailey, E.
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Physiology of the Honeybee Corpora Allata 3. A New Method for Allatectomy of Queens

Journal of Apicultural Research, 1974
SummaryA new method for allatectomy of queen honeybees is described. This technique makes it possible to carry out the allatectomy in the air instead of under physiological solution. After allatectomy, three young queens lived for 22, 35 and nearly 50 days, respectively, and during this time they laid eggs; the two longer-lived queens showed a fairly ...
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The effect of allatectomy and photoperiod on the supercooling point in Pyrrhocoris apterus adults

Physiological Entomology, 1992
Abstract Adults of Pyrrhocoris apterus (L.) (Heteroptera: Pyrrhocoridae) reared at 26°C had a considerably lower supercooling point (SCP) in diapause‐inducing (LD 12:12 h) than in diapause‐inhibiting (LD 18:6 h) photoperiodic regimes.
M. HODKOVA, L. SOMME, R. HANZAL, V. BRUNNHOFER, I. HODEK   +4 more
openaire   +1 more source