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Corpus Systématique Animale

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On the phospholipids of Culex pipiens fatigans

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  • D. Subrahmanyam 1
  • L. B. Moturu 1
  • R. Hanumantha Rao 1
  • 1) Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, India

The lipids of different developmental stages ofCulex pipiens fatigans, vector of bancroftian filariasis, have been investigated. The phospholipid composition of the developmental stages and of the subcellular fractions of fourth instar larvae of the insects were analyzed. The composition of fatty acids and their positional distribution have also been examined in the major phospholipids of the larvae. The insect eggs contained higher amounts of lipids than larvae suggesting that they were utilized during embryogenesis. Phosphatidyl ethanolamine (PE) and phosphatidyl choline (PC) comprised over 75% of the insect phospholipids. Of these, PE was present in the greatest amounts during all stages of growth and in the subcellular fractions of larvae. An ethanolamine containing sphingolipid was found as a component of the phospholipids of the insects. About 50% of the lipids of the larvae were localized in the cell debris and nuclei fraction which also contained most of the lysolipids of the insects. As in other Diptera 16?0, 16?1 and 18?1 were the major fatty acids present in the insect lipids of which the fatty acid found in greatest amounts was 16?1. Similar to the phospholipids of animal species, saturated fatty acids were predominantly linked to the 1 position of the major phospholipids of the insects while the unsaturated fatty acids were in higher amounts at the 2 position.

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  • 1 - health sciences
  • 2 - biomedical research
  • 3 - nutrition & dietetics
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  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Cell Biology
  • 1 - Physical Sciences ; 2 - Chemistry ; 3 - Organic Chemistry
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
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  • 1 - science ; 2 - nutrition & dietetics
  • 1 - science ; 2 - biochemistry & molecular biology
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  • Insectes
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