Results 11 to 20 of about 179 (132)

THE EFFECT OF SEX AND ALLATECTOMY ON THE OXYGEN CONSUMPTION OF THE THORACIC MUSCULATURE OF THE INSECT, LEUCOPHAEA MADERAE [PDF]

open access: yesThe Biological Bulletin, 1956
1. Endogenous oxygen consumption of thoracic muscles of Leucophaea maderae was no higher in males than in females, but there was a significant increase in this parameter in allatectomized animals of both sexes.2. Preliminary tracer phosphorus studies were made in vivo and the relative specific activities of the muscle fractions are shown.
Samuels, Arthur
openaire   +3 more sources

Role of juvenile hormone in the synthesis and sequestration of vitellogenins in the red cotton stainer, Dysdercus koenigii (Heteroptera : Pyrrhocoridae) [PDF]

open access: yes, 2000
Investigations were carried out to determine the role of juvenile hormone (JH) and 20-hydroxy ecdysone in the synthesis and uptake of vitellogenins, which were earlier identified, purified and characterised, in Dysdercus koenigii. The concentration(s) of
Venugopal, KJ, Kumar, Dinesh
core   +1 more source

Regulation of the Phonotactic Threshold of the Female Cricket, Acheta domesticus: Juvenile Hormone III, Allatectomy, L1 Auditory Neuron Thresholds and Environmental Factors [PDF]

open access: yes, 1998
Juvenile hormone III (JHIII), when applied to the abdomen of 1-day-old female Acheta domesticus (in quantities that would create JHIII titers in the hemolymph that were within the range measured in females of this species) caused a significant decrease ...
Maier, J.   +9 more
core   +2 more sources

Influence of juvenile hormone on growth and digestion in fifth instar larvae and adults of Locusta migratoria [PDF]

open access: yes, 1974
Food utilization was measured in female fifth instar larvae and adults of the migratory locust by following the weight of food ingested, the weight of faeces produced, and the increase in body weight. These parameters were measured in normally developing
Beenakkers, A.M.Th.   +1 more
core   +1 more source

The influence of allatectomy on hemolymph JH titers. [PDF]

open access: yes, 2014
Bumblebee workers receiving the same treatment were housed in groups of three in small cages without a queen. JH titers were determined at the age of 7 days with a JH-III specific radioimmunoassay. Shown are mean ± SE, and sample size within or above the
Hagai Shpigler (588194)   +6 more
core   +1 more source

Presence of myotropic peptides in the male accessory reproductive glands of Locusta migratoria [PDF]

open access: yes, 1990
Methanolic extracts of Locusta male accessory glands, fractionated by reversedphase high-performance liquid chromatography, contain several factors which stimulated the spontaneous contractions of the Locusta oviduct in vitro.
Schoofs, Liliane   +2 more
core   +1 more source

The influence of allatectomy on ester amounts in the Dufour's gland secretion. [PDF]

open access: yes, 2014
A. Total amount of secretion. B. The relative amounts of esters out of the Dufour's gland secretion. The Dufour's gland secretion was analyzed at the age of 7 days using gas chromatography/mass spectrometry (GC/MS).
Hagai Shpigler (588194)   +6 more
core   +1 more source

Juvenile hormone inhibits differentiation of olfactory sense organs during postembryonic development of cockroaches [PDF]

open access: yes, 1974
The density of olfactory sense organs on the antenna of the cockroach, Leucophaea maderae, is relatively constant throughout larval development (average 400 sensilla/mm2), but undergoes a substantial increase at the adult state (to about 620 sensilla/mm2)
Sanchez, Thomas V., Schafer, Rollie
core   +1 more source

The role of the Br-CC-CA in post-diapause development. [PDF]

open access: yes, 2016
(A) The effects of brain removal and implantation on adult development of post-diapause pupae. Diapausing pupae were chilled for 8 weeks and the Br-CC-CA was removed immediately after warming. A Br-CC-CA collected from another previously chilled pupa was
Nobuto Yamada (400063)   +3 more
core   +1 more source

Cloning of the cDNA encoding Scg-SPRP, an unusual Ser-protease-related protein from vitellogenic female desert locusts (Schistocerca gregaria) [PDF]

open access: yes, 1998
The cDNA coding for a Ser-protease-related protein (Scg-SPRP)(1) was cloned from desert locust (Schistocerca gregaria) midgut. The derived amino acid sequence consists of 260 residues and shows strong sequence similarity to insect trypsin-like molecules.
Chiou, S.J.   +6 more
core   +1 more source

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