Results 181 to 190 of about 34,698 (212)

Regulation of larval corpora allata in Galleria mellonella

Nature, 1974
IN insects metamorphosis occurs when the corpora allata stop secreting juvenile hormone, but it is not known how the production of juvenile hormone is regulated. Wigglesworth1 first indicated that the nervous connections from the brain to the corpora allata provide a mechanism for control; this control could be nervous or neurohormonal.
N A, Granger, F, Sehnal
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Phagocytic haemocytes in unfixed Galleria mellonella larvae

Journal of Insect Physiology, 1969
Abstract Phagocytosis by the haemocytes of unfixed last instar larvae of the greater wax moth, Galleria mellonella (L)., was studied by injecting foreign materials into the haemocoele. Starch granules, sheep erythrocytes, latex particles, Chinese ink, Sarcina lutea , and Staphylococcus epidermidis were readily phagocytized by mitotically ...
R A, Werner, J C, Jones
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Metaphosphate in the Excreta of the Wax Moth, Galleria mellonella

Nature, 1950
IN the course of investigations on the phosphorus metabolism of the wax moth, Galleria mellonella, it was found that there is as much as 2–4 per cent phosphorus in the excreta of the larvae, of which only a small proportion is inorganic orthophosphate. The greater part, 60–70 per cent, is a labile phosphorus compound which is converted almost entirely ...
S, NIEMIERKO, W, NIEMIERKO
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Galleria mellonella as an Infection Model for Select Agents

2014
The use of animal models is a key step to better understand bacterial virulence factors and their roles in host/pathogen interactions. To avoid the ethical and cost problems of mammalian models in bacterial virulence research, several insect models have been developed.
Nicolas, Sprynski, Eric, Valade, Fabienne, Neulat-Ripoll   +2 more
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The structure of the hemocytes of Galleria mellonella (Lepidoptera)

Journal of Morphology, 1973
AbstractFour hemocyte types have been identified in the late last larval instar of Galleria mellonella. Plasmatocytoids are round to spindle shaped cells, 10–20 μ long and 5–10 μ wide. The cytoplasm contains no distinguishing inclusions. Golgi complexes, rough endoplasmic reticulum and free ribosomes are abundant.
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Neural control of metamorphosis in Galleria mellonella (Lepidoptera)

Journal of Insect Physiology, 1966
Abstract Experiments in which nerve section of last-instar Galleria mellonella larvae delayed or prevented pupation suggested that proprioception plays a role in controlling the initiation of the moulting cycle. This was borne out by external distortion of intact larvae, which inhibited moulting.
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Juvenilizing effect of cooling on Galleria mellonella

Journal of Insect Physiology, 1976
Cooling of larvae of G. mellonella in the final instar results in a serious disturbance in their later development. Such disturbance concerns the transition to additional larval stages, loss of the ability to spin cocoons, and the formation of individuals incapable of continuing normal development.
Bronisław Cymborowski, Mieczysława J. Boguś   +1 more
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Immunity of the greater wax mothGalleria mellonella

Insect Science, 2016
AbstractInvestigation of insect immune mechanisms provides important information concerning innate immunity, which in many aspects is conserved in animals. This is one of the reasons why insects serve as model organisms to study virulence mechanisms of human pathogens.
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Corazonin gene expression in the waxmoth Galleria mellonella

Insect Molecular Biology, 2001
Abstract We cloned and sequenced a full length cDNA coding for [Arg7]‐corazonin in the greater wax moth Galleria mellonella . The deduced corazonin preprohormone consists of a nineteen amino acid signal peptide, the actual eleven amino acid corazonin sequence, followed by a ...
I A, Hansen, F, Sehnal, S R, Meyer, K, Scheller   +3 more
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Developmental changes of osmotic pressure in the haemolymph of Galleria mellonella

Journal of Insect Physiology, 1970
Abstract Changes in the osmotic pressure of the haemolymph have been studied in successive developmental stages of Galleria mellonella. In this study it has been shown that the osmotic pressure of the haemolymph is not constant during the whole developmental period.
J, Czaja-Topińska, R Z, Klekowski
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