| Metabolic fate of [14C]-labeled meal protein amino acids in Aedes aegypti mosquitoes. | |
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MedLine Citation:
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PMID: 15081827 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We developed a method to follow the metabolic fate of [(14)C]-labeled Euglena gracilis protein amino acids in Aedes aegypti mosquitoes under three different adult nutritional regimes. Quantitative analysis of blood meal protein amino acid metabolism showed that most of the carbon of the amino acids was either oxidized to CO(2) or excreted as waste. Under the three different adult nutritional regimes, no significant differences in the metabolism of amino acids were found, which indicated that the female A. aegypti mosquitoes possess a substantial capacity of maintaining metabolic homeostasis during a gonotrophic cycle. The amount of maternal glycogen and lipid after egg laying were significantly lower in the mosquitoes that underwent a partial starvation before a blood meal and/or starvation after the blood meal. The content of egg lipid or protein or the number of eggs laid did not show a significant difference among the three different regimes, which indicates that stable fecundity of A. aegypti under the partial starvation before a blood meal and/or starvation after the blood meal seemed to result from a trade-off between current fecundity and future survival after the eggs laid. The methods described in this paper can be applied to a wide range of questions about the effects of environmental conditions on the utilization of blood meal amino acids. |
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Authors:
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Guoli Zhou; Matthew Flowers; Kenneth Friedrich; James Horton; James Pennington; Michael A Wells |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of insect physiology Volume: 50 ISSN: 0022-1910 ISO Abbreviation: J. Insect Physiol. Publication Date: 2004 Apr |
Date Detail:
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Created Date: 2004-04-14 Completed Date: 2004-08-12 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 2985080R Medline TA: J Insect Physiol Country: England |
Other Details:
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Languages: eng Pagination: 337-49 Citation Subset: IM |
Affiliation:
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Department of Biochemistry and Molecular Biophysics, Center for Insect Sciences, University of Arizona, Biosciences West, Tucson, AZ 85721, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aedes
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metabolism*,
physiology Amino Acids / chemistry, metabolism* Animal Feed Animals Blood Carbohydrate Metabolism Carbon Dioxide / metabolism Carbon Radioisotopes / diagnostic use Dietary Proteins / metabolism* Euglena gracilis / chemistry Female Glycogen / metabolism Lipid Metabolism Oviposition Ovum / chemistry |
| Grant Support | |
ID/Acronym/Agency:
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AI46541/AI/NIAID NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Amino Acids; 0/Carbon Radioisotopes; 0/Dietary Proteins; 124-38-9/Carbon Dioxide; 9005-79-2/Glycogen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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