EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Balanced amino acid composition essential for infusion-induced egg development in the mosquito (Culex pipiens pallens)


, : Balanced amino acid composition essential for infusion-induced egg development in the mosquito (Culex pipiens pallens). Journal of Insect Physiology 39(7): 615-621

Amino acid mixtures, in which one or more amino acids were omitted from a basal mixture of 17 amino acids, were infused into the hemocoels of female Culex pipiens pallens mosquitoes. The resulting oogenesis was compared with previous studies of oogenesis induced by the basal mixture to evaluate the oogenic stimulatory effect of individual amino acids. Infusion of solutions deficient in isoleucine, leucine, lysine, phenylalanine, threonine, tryptophan or valine, which are known to be absolutely essential for producing mature eggs, failed even to initiate oogenesis. Removal of arginine (also absolutely essential for egg production), cysteine, histidine or methionine from the basal mixture resulted in decreased activation of oogenesis. Single elimination of other amino acids (alanine, glycine, proline and serine) resulted in high percentages of oogenesis and egg maturation, comparable to the levels produced by basal mixture infusion. The combination of asparagine and glutamine, which were reported to increase in the hemolymph of blood-fed females, can be substituted for asparagine and glutamate in the basal mixture to give a high level of oogenesis. On the other hand, infusion of a mixture comprised of the eight amino acids absolutely essential for egg production showed only a slight stimulation of oogenesis initiation. Single amino acid infusion of isoleucine or threonine also failed to stimulate mosquito oogenesis. Thus, we have concluded that initiation of mosquito oogenesis requires an appropriate balance in increased hemolymph amino acids rather than just one or a few special trigger amino acids.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002308082

DOI: 10.1016/0022-1910(93)90044-r

PDF Full Text: Balanced amino acid composition essential for infusion-induced egg development in the mosquito (Culex pipiens pallens)


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Brodaric Boyan; Johnson Bruce R.; Robida Francois, 2007: GeoSciML Testbed 2; demonstrating the exchange of geologic map information using a common data transfer schema and Open Geospatial Consortium technologies. Scientific Investigations Report Pages 22

Barene, I.; Daberte, I.; Zvirgzdina, L.; Iriste, V., 2003: The complex technology on products of German chamomile. The German chamomile is an old herbal medicine, which is widely used in medical practice. The water and ethanol extracts of matricaria flowers are mainly used for their anti-inflammatory, antiseptic and spasmolytic properties. It is possible to pr...

Goldberg, H.C., 1967: A modified petri dish for mycologic laboratory cultures. Journal of the American Podiatry Association 57(3): 123-124

Terada, M.; Minami, S.; Ishii, T.; Etoh, T.; Oshibuchi, H.; Shiozawa, T., 1994: A case of annular pancreas in the adult. A 44-year-old woman was admitted to our hospital because of vomiting and melena. Upper GI series and duodenoscope showed smooth stenosis of the 2nd portion of duodenum and duodenal ulcer. Abdominal CT scan disclosed mass lesion in contact with duo...

Engler, K.H.; Efstratiou, A., 1999: A rapid enzyme immunoassay for the detection of diphtheria toxin. Brown, Fred [Author], Hendriksen, Coenraad F M [Author], Sesardic, Dorothea [Author] Developments in Biological Standardization Alternatives to animals in the development and control of biological products for human and veterinary use : 321

Hermann, D.M.; Bassetti, C.L., 2003: Sleep-disordered breathing and stroke. A growing number of studies suggest that there is a close relationship between sleep-disordered breathing (SDB) and stroke. Since the prevalence of SDB is high among acute stroke patients and since oxygen desaturations are potentially dangerous, S...

Breakey, S.; Wolf, K.A.; Nicholas, P.K., 2002: Adolescent violence. Assessment of nurses' attitudes and educational needs. Adolescent violence is a major public health problem. Because of their roles in community and hospital settings, nurses have an opportunity to limit the epidemic of violence. The purpose of this study was to examine the perceived levels of knowled...

Jin, X.Y.; Wong, K.; Gibson, D.G.; Pepper, J.R., 1994: Stentless and stented valves in the aortic position An early post-operative assessment. European Heart Journal 15(ABSTR SUPPL ): 151

D.G.ise, S.; Maratea, J.; Perkins, C., 2004: Malathion immunotoxicity in the American lobster (Homarus americanus) upon experimental exposure. A lobster die-off reduced the 1999 fall landings in western Long Island Sound by up to more then 99%. The die-off corresponded in time with the application of pesticides for the control of mosquitoes that carried West Nile virus, a new emerging di...

JENSEN.H.; KRISTJANSEN.A.; PILGARD.C.E.; REYMANN.F., 1958: Clinical use of hydrocortisone ointment. Maanedsskrift for Praktisk Laegegerning Og Social Medicin 36(9): 345-357