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Chemical composition of tobacco budworm eggs during development

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, ISSN: 0305-0491, Vol: 81, Issue: 1, Page: 165-169
1985
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    11
    • Citation Indexes
      11
  • Captures
    3

Article Description

1.1. The protein, carbohydrate, and lipid composition were analyzed in eggs of Heliothis virescens during four developmental periods: 0, 24, 48 and 65 hr (pre-eclosion). Dry weights of individual eggs decreased from 24.6 μg to 15.7 μg/egg during the 65 hr period.2.2. Protein did not decrease significantly while carbohydrates (largely glycogen) decreased from 10.6 to 3.1% of the dry weight and lipids decreased from 16.6% of the dry weight to 8.1%. Glycerophospholipids did not change significantly while triacylglycerols decreased dramatically.3.3. The fatty acyl composition did not follow the same compositional profile as the diet.4.4. The major fatty acyls were C16:0, C18:1 and C18:2, while those in the diets were C16:0, C18:0, C18:2 and C18:3.5.5. Each egg utilized for catabolism 0.7 μg protein, 2.13 μg carbohydrate and 2.57 μg of lipid which account, respectively, for 8.3, 24.8 and 66.9% of the egg's energy expenditure.

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