Factors Influencing Cold Hardiness during Overwintering of Streltzoviella insularis (Lepidoptera: Cossidae)
- 12 March 2020
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 113 (3), 1254-1261
- https://doi.org/10.1093/jee/toaa032
Abstract
Streltzoviella insularis (Staudinger) (Lepidoptera: Cossidae) is a woodboring pest that severely damages urban and plain afforestation trees in northern China. Cold hardiness is an important strategy for the insect to survived during low winter temperatures. Understanding the strategy of S. insularis might provide insights for pest management approaches. To assess the key factors affecting cold hardiness, we measured the supercooling point, freezing point, total water content, total fat content, glycogen content, and total protein content of overwintering larvae. The relationships between supercooling points, temperature, body size, and nutrients were analyzed. The results showed that the supercooling point and freezing point of the larvae decreased first, reached the lowest point in January, and then increased during the rest of the overwintering period. The supercooling point positively correlated with the daily average temperature and the daily minimum temperature. Total lipid content negatively correlated with the supercooling point, while glycogen content had a significant positive correlation with the supercooling point. The temperature may have a major impact on cold hardiness, whereas individual body size may have no significant influence over cold tolerance. During the overwintering process, glycogen and total lipid contents may directly affect cold hardiness. Therefore, the lipid and carbohydrate metabolism may play a role in the cold tolerance of S. insularis larvae. This study provides a physiological and biochemical basis for future metabolic studies on S. insularis larva and the research of overwintering strategies.Keywords
Funding Information
- Beijing Science and Technology Planning Project (Z191100008519004)
- National Key Research & Development Program of China (2018YFD0600200)
This publication has 24 references indexed in Scilit:
- Cold Hardiness of Asian Longhorned Beetle (Coleoptera: Cerambycidae) Larvae in Different PopulationsEnvironmental Entomology, 2014
- Cold truths: how winter drives responses of terrestrial organisms to climate changeBiological Reviews, 2014
- Effects of transgenic Bt cotton on overwintering characteristics and survival of Helicoverpa armigeraJournal of Insect Physiology, 2011
- Total Protein Methods and Their Potential Utility to Reduce the Risk of Food Protein AdulterationComprehensive Reviews in Food Science and Food Safety, 2010
- A comparison of low temperature tolerance traits between closely related aphids from the tropics, temperate zone, and ArcticJournal of Insect Physiology, 2010
- Body Size, but Not Cooling Rate, Affects Supercooling Points in the Red Imported Fire Ant,Solenopsis invictaEnvironmental Entomology, 2008
- Geographical variation in egg cold hardiness: a study on the adaptation strategies of the migratory locust Locusta migratoria L.Ecological Entomology, 2003
- Principles of Insect Low Temperature TolerancePublished by Springer Science and Business Media LLC ,1991
- Insect cold hardiness: Freezing and supercooling—An ecophysiological perspectiveJournal of Insect Physiology, 1987
- Colorimetric Method for Determination of Sugars and Related SubstancesAnalytical Chemistry, 1956