Journal of Applied Entomology (2003) 127, 107-111

J.-J. Wang and Z.-M. Zhao (2003)
Accumulation and utilization of triacylglycerol and polysaccharides in Liposcelis bostrychophila (Psocoptera, Liposcelididae) selected for resistance to carbon dioxide
Journal of Applied Entomology 127 (2), 107-111
Abstract: Two populations of the psocid, Liposcelis bostrychophila Badonnel, were exposed to two CO₂-enriched atmospheres (35% CO₂ + 21% O₂, and 55% CO₂ + 21% O₂, balance N₂) for 30 generations. Controls were reared in normal atmospheres. The reserves of triacylglycerol and polysaccharides were evaluated in adults of the two experimental and the control populations in generations F₁₅ and F₃₀. The utilization rate of triacylglycerol and polysaccharides in the CO₂-enriched atmospheres were also determined in generation F₃₀. The results indicated that the reserves of triacylglycerol and polysaccharides increased significantly during selection for CO₂ resistance; the higher the resistance level, the greater the reserves. Exposure of these populations to controlled atmosphere was associated with a steady utilization of the reserves. By contrast, the unselected population responded to controlled atmospheres by accelerated utilization of triacylglycerol and polysaccharides. Comparison of the utilization rates during CO₂ exposure showed that triacylglycerol is the main energy source, and polysaccharides contribute to metabolic energy supply only to a small extent.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jin-Jun Wang

Research topic(s) for pests/diseases/weeds:
control - general
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Liposcelis bostrychophila