Results 131 to 140 of about 659 (187)
Nadph-diaphorase activity in corpus allatum cells of the cockroach, Diploptera punctata [PDF]
Insect Biochemistry and Molecular Biology, 2000 Using the fixation insensitive NADPH-diaphorase reaction as a histochemical marker for the enzyme nitric oxide synthase (NOS), we investigated the possible sites of putatively NOS-related NADPH-diaphorase in the brain and retrocerebral complex of the cockroach, Diploptera punctata.
A S, Chiang +3 more
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Inhibitory regulation of corpus allatum activity in mosquitoes
Journal of Insect Physiology, 1981Abstract In order to determine whether juvenile hormone (JH) in mosquitoes is regulated by ovarian inhibitory feedback, we implanted JH-sensitive pupal ovaries into adult mosquitoes and observed subsequent ovarian maturation. Removal or destruction of resting-stage ovaries (previously JH-stimulated) resulted in JH-stimulated development of implanted ...
P A Rossignol
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Secretion of Juvenile Hormone by the Corpus Allatum of Calliphora
Nature, 1954IT is now generally accepted that metamorphosis in insects is prevented throughout the larval stages by the secretion of the ‘juvenile hormone’ by the corpus allatum; but this has never been quite satisfactorily proved in the Diptera. Vogt1 obtained some evidence that the corpus allatum restrains the development of the imaginal disks in the early ...
Wigglesworth V B
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The corpus allatum, neurosecretion and photoperiodically controlled polymorphism in an aphid
Journal of Insect Physiology, 1987Corpus allatum volumes were measured in adult vetch aphids, M. viciae, reared in long or short days. Initially, gland volumes were similar (23,228 ± 1311 (SE) and 21,413 ± 1208 μm3 respectively) but in short days the volumes increased with age to 32,283 ± 1917 (SE) μm3 on day 20 while in long days they decreased to 18,390 ± 1193 μm3.
Jim Hardie
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Cell and Tissue Research, 1987
By use of immunocytochemistry, a gastrin/CCK-like material has been demonstrated in the corpus cardiacum-corpus allatum complex of the cockroach Leucophaea maderae. Reactivity toward gastrin and CCK with region-specific antisera suggests that the gastrin/CCK-like peptide of this insect contains the COOH-terminal tetrapeptide sequence which is common to
Bente Langvad Hansen +2 more
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By use of immunocytochemistry, a gastrin/CCK-like material has been demonstrated in the corpus cardiacum-corpus allatum complex of the cockroach Leucophaea maderae. Reactivity toward gastrin and CCK with region-specific antisera suggests that the gastrin/CCK-like peptide of this insect contains the COOH-terminal tetrapeptide sequence which is common to
Bente Langvad Hansen +2 more
exaly +3 more sources
The Structure of the Corpus Allatum of Iphita limbata (Hemiptera) [PDF]
Journal of Cell Science, 1956 ABSTRACT The corpus allatum of Iphita limbata Stal. (Pyrrhocoridae, Hemiptera) is an unpaired, syncytial gland, with nuclei of two sizes. The allatic nerve transmits neurosecretory colloids into the gland. The recurrent nerve adjacent to the allatic nerve also contains neurosecretory products. The cytoplasm of the gland contains granular
K. K. Nayar
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Innervation and Electrophysiology of the Corpus Allatum [PDF]
, 2019 C. S. Thompson, S. S. Tobe
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Antiallatotropins: Inhibition of Corpus Allatum Development
Science, 1977Treatment of newly eclosed adult milkweed bug ( Oncopeltus fasciatus ) females with precocene 2 prevents secretion of juvenile hormone by inhibition of postimaginal development of the corpus allatum. Ovarian development which is dependent upon juvenile hormone is prevented or reversed, depending upon the timing of ...
W S, Bowers, R, Martinez-Pardo
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