STUDIES ON VITAMIN E IN THE HOUSE CRICKET, ACHETA DOMESTICUS (ORTHOPTERA: GRYLLIDAE): II. IN VIVO INHIBITION BY VITAMIN E OF A PHENOLASE SYSTEM IN THE EGG

1972 ◽  
Vol 104 (4) ◽  
pp. 515-518 ◽  
Author(s):  
J. E. McFarlane
Keyword(s):  
Vitamin E ◽  
Acheta Domesticus ◽  
Methyl Laurate ◽  
House Cricket

AbstractMethyl laurate applied to the surface of house cricket eggs induces a melanization of the extra-embryonic fluid which is due to the oxidation and polymerization of dopamine. Melanization can be delayed or prevented by the addition of 5% vitamin E to the methyl laurate. Methyl laurate appears to activate a phenolase system in the extra-embryonic fluid, and this system or activation of this system is inhibited by vitamin E.

VITAMIN K: A GROWTH FACTOR FOR THE HOUSE CRICKET (ORTHOPTERA: GRYLLIDAE)

1976 ◽  
Vol 108 (4) ◽  
pp. 391-394 ◽  
Author(s):  
J. E. McFarlane
Keyword(s):  
Vitamin E ◽  
Growth Factor ◽  
Vitamin K ◽  
Acheta Domesticus ◽  
Equimolar Amount ◽  
House Cricket ◽  
Male And Female ◽  
Inhibiting Effect ◽  
Basic Diet ◽  
Effect On Growth

AbstractVitamin K1 added to a basic diet for the house cricket, Acheta domesticus (L.), significantly improves growth of male and female larvae. Growth is significantly better with 18.7 μg K1/g than it is with an equimolar amount of vitamin E. Unlike vitamin E, however, vitamin K1 is without effect on reproduction. Vitamins K3 and K5, and coumarin, have no effect or a slightly inhibiting effect on growth, and no effect on reproduction.

STUDIES ON VITAMIN E IN THE HOUSE CRICKET, ACHETA DOMESTICUS (ORTHOPTERA: GRYLLIDAE): III. TARSAL ABSORPTION OF VITAMIN E AND FATTY ACID METHYL ESTERS BY LARVAE

1972 ◽  
Vol 104 (4) ◽  
pp. 519-522
Author(s):  
J. E. McFarlane
Keyword(s):  
Fatty Acid ◽  
Vitamin E ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
Acheta Domesticus ◽  
House Cricket ◽  
Second Stage ◽  
Acid Methyl

AbstractWhen fatty acid methyl esters or vitamin E are painted on the surface of eggs of the house cricket, Acheta domesticus (L.), second-stage larvae originating from these eggs may show reduction of the tarsi. The effect of the chemicals is on the first-stage larvae which absorb the chemicals through the tarsi during escape from the shell. The reduced tarsi are regenerated at the next moult or next two moults.

scholarly journals HAEMOLYMPH AND TISSUE TITRES OF ACHETAKININS IN THE HOUSE CRICKET ACHETA DOMESTICUS: EFFECT OF STARVATION AND DEHYDRATION

1994 ◽  
Vol 193 (1) ◽  
pp. 307-319 ◽  
Author(s):  
J Chung ◽  
G Goldsworthy ◽  
G Coast
Keyword(s):  
Acheta Domesticus ◽  
High Concentration ◽  
House Cricket ◽  
Immunoreactive Material ◽  
Access To Water ◽  
And Function ◽  
Thoracic And Abdominal ◽  
The Brain

Achetakinin-like immunoreactive material in tissues and haemolymph of adult male crickets was quantified by radioimmunoassay. Achetakinin-like material was found in the brain, suboesophageal ganglia and the thoracic and abdominal ganglia, but the largest amount was within the retrocerebral complex. A Ca2+-dependent release of achetakinin-like immunoreactive material was demonstrated from retrocerebral complexes incubated in vitro in saline containing a high concentration of K+. The concentration of achetakinin-like material in haemolymph from fed crickets was estimated to be 2.8 nmol l-1 and increased more than 10-fold in insects starved for 48 h without access to water. The presence of achetakinin-like material in haemolymph suggests that these peptides are released in vivo and function as circulating neurohormones.

VITAMINS E AND K IN RELATION TO GROWTH OF THE HOUSE CRICKET (ORTHOPTERA: GRYLLIDAE)

1978 ◽  
Vol 110 (3) ◽  
pp. 329-330 ◽  
Author(s):  
J. E. McFarlane
Keyword(s):  
Vitamin E ◽  
Tenebrio Molitor ◽  
Carnitine Deficiency ◽  
Acheta Domesticus ◽  
House Cricket ◽  
Organic Components ◽  
Cu And Zn

While there is much evidence for interrelationships between the organic components of insect diets as they relate to growth, there is very little information available on inorganic or organic-inorganic relationships. An example of inorganic interactions is found with Cu and Zn in the house cricket, Acheta domesticus (L.) (McFarlane 1976a).Organic-inorganic interactions have been shown by Fraenkel (1958), who demonstrated effects of Zn and potassium on the expression of a carnitine deficiency in Tenebrio molitor, and by McFarlane (1974), who showed an interaction between Cu and vitamin E in the house cricket.

THE FUNCTIONS OF COPPER IN THE HOUSE CRICKET AND THE RELATION OF COPPER TO VITAMIN E

1974 ◽  
Vol 106 (4) ◽  
pp. 441-446 ◽  
Author(s):  
J. E. McFarlane
Keyword(s):  
Vitamin E ◽  
Sex Difference ◽  
Artificial Diet ◽  
Acheta Domesticus ◽  
Adult Males ◽  
House Cricket ◽  
Growth And Survival

AbstractThe addition of copper to an artificial diet improves growth and survival of the house cricket, Acheta domesticus (L.), the optimum concentrations being 2 μg/g for females and 10 μg/g for males. This sex difference in requirements is attributed in part to the accumulation of copper by the larval testis. Adult males showing a loss in pigmentation, the so-called ’albino’ males, are obtained on diets low in copper; the percentage of ’albino’ males is increased by the addition of vitamin E to the diet. The pigmentation effect of vitamin E is explained by movement of copper into the testis, the development of which is stimulated by vitamin E.

STUDIES ON VITAMIN E IN THE HOUSE CRICKET, ACHETA DOMESTICUS (ORTHOPTERA: GRYLLIDAE): I. NUTRITIONAL ALBINISM

1972 ◽  
Vol 104 (4) ◽  
pp. 511-514 ◽  
Author(s):  
J. E. McFarlane
Keyword(s):  
Vitamin E ◽  
Sexual Behaviour ◽  
Artificial Diet ◽  
Adult Emergence ◽  
Acheta Domesticus ◽  
B Vitamins ◽  
Cellulose Powder ◽  
House Cricket ◽  
Light Amber

AbstractAddition of DL-α-tocopherol (vitamin E) at a level of 17.2 μg/g to an artificial diet containing casein, glucose, cellulose powder, salts, cholesterol, and a mixture of B-vitamins results in a loss of pigmentation in 30–50% of males on adult emergence. These albino males are of a light amber colour, apparently lacking melanin, although their cuticle appears to be sclerotized, and their sexual behaviour is normal.

Electron investigations of rhabdovirus-like particles in mexican bean beetles and crickets

1978 ◽  
Vol 36 (2) ◽  
pp. 378-379
Author(s):  
J. R. Adams ◽  
G. J Tompkins ◽  
A. M. Heimpel ◽  
E. Dougherty
Keyword(s):  
Biological Control ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Developmental Stages ◽  
Management Program ◽  
Acheta Domesticus ◽  
Epilachna Varivestis ◽  
House Cricket ◽  
Similar Morphology ◽  
Bean Beetle

As part of a continual search for potential pathogens of insects for use in biological control or on an integrated pest management program, two bacilliform virus-like particles (VLP) of similar morphology have been found in the Mexican bean beetle Epilachna varivestis Mulsant and the house cricket, Acheta domesticus (L. ).Tissues of diseased larvae and adults of E. varivestis and all developmental stages of A. domesticus were fixed according to procedures previously described. While the bean beetles displayed no external symptoms, the diseased crickets displayed a twitching and shaking of the metathoracic legs and a lowered rate of activity.Examinations of larvae and adult Mexican bean beetles collected in the field in 1976 and 1977 in Maryland and field collected specimens brought into the lab in the fall and reared through several generations revealed that specimens from each collection contained vesicles in the cytoplasm of the midgut filled with hundreds of these VLP's which were enveloped and measured approximately 16-25 nm x 55-110 nm, the shorter VLP's generally having the greater width (Fig. 1).

Effects of Vitamin E Administration on Platelet Function and Serum Lipid Peroxides in DOCA-Salt Hypertensive Rats

1991 ◽  
Vol 65 (04) ◽  
pp. 411-414 ◽  
Author(s):  
Keizo Umegaki ◽  
Hiromi Saegusa ◽  
Masato Kurokawa ◽  
Tomio Ichikawa
Keyword(s):  
Vitamin E ◽  
Platelet Function ◽  
Serum Lipid ◽  
Lipid Peroxide ◽  
Lipid Peroxides ◽  
Hypertensive Rats ◽  
Serotonin Content ◽  
Serum Lipid Peroxide ◽  
Salt Hypertension

SummaryEffects of vitamin E on platelet function and serum lipid peroxide levels were investigated in DOCA-salt hypertensive rats. In the hypertensive rats, ADP- and collagen-induced platelet aggregation in whole blood were markedly attenuated and accompanied by a reduction of serotonin content as compared with the normotensive controls. These facts indicated the appearance of exhausted platelets, which have already been activated in vivo, due to the hypertension. Platelet vitamin E levels were decreased by 50%, while serum lipid peroxide levels were increased 3.6-fold in the hypertensive rats. Vitamin E administration (10 times the dietary intake) during the experimental periods did not influence either the aggregability or the serotonin content of platelets from the hypertensive rats. However, vitamin E administration significantly prevented the elevation of serum tipid peroxides due to the hypertension. These results suggest that vitamin E administration has little effect on platelet activation in vivo due to DOCA-salt hypertension.

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