Related Experiment Video
Updated: Feb 7, 2026

Identification of Fatty Acids in Bacillus cereus
Published on: December 5, 2016
The Influence of Fatty Acids on Cold Hardiness of Eogystia hippophaecolus Larvae
1Beijing Key Laboratory for Forest Pest Control, Beijing Forestry University, Beijing, China.
Abstract:
BACKGROUND: Larvae of the Cossidae family moth Eogystia hippophaecolus bore into and overwinter in the roots of sea buckthorn, which damages this plant in China.
Objective:
The primary aims of the current study were to investigate the effects of fatty acids on cold hardness in overwintering larvae.
Materials And Methods:
The supercooling point (SCP), low temperature mortality and fatty acid composition of different overwintering larvae were assessed.
Results:
E. hippophaecolus larvae could survive for a long time at temperatures far below the SCP. Saturated fatty acids became less abundant as overwintering proceeded, while unsaturated fatty acids did the opposite. C10:0, C16:1, C16:0, C18:0, C20:0, C20:5, C22:0 and C24:0 fatty acids showed significant seasonal variation during the overwintering period.
Conclusion:
E. hippophaecolus is "freezing-tolerant" and cold hardiness is enhanced by increasing fatty acid unsaturation and degrading medium- and long-chain fatty acids and eicosapentaenoic acid.
Related Concept Videos
Responses to Heat and Cold Stress
Hardy-Weinberg Principle
Overview of Fatty Acid Metabolism
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...
Cold Weather Concreting
To counteract the negative impacts of cold weather, ensuring...
Masonry in Cold and Hot Weather Conditions
Other key practices include keeping masonry units...
The Influence of Affect on Cognition

