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Effect of long-term cold storage on trehalose metabolism of pre-wintering Harmonia axyridis adults and changes in morphological diversity before and after wintering.
PLoS One. 2020; 15(3):e0230435.Plos

Abstract

Harmonia axyridis is a major bio-control agent of pests in agriculture and forest ecosystems. It is also a globally important invasive insect species. To test whether dark elytra colour is associated with greater cold hardiness, we compared the survival rate of prolonged cold exposure in both yellow and black colour morphs of female and male H. axyridis. We determined the trehalose and glycogen content, trehalase activity, and the dynamics of genes associated with the trehalose metabolic pathway. Yellow forms predominated before winter began, however black forms increased from 11.15 to 30.46% after overwintering. There was no significant difference in trehalose content between the females and males during overwintering. Glycogen content in over-wintering yellow females and black males increased significantly, while it decreased in black females. Soluble trehalase activity increased significantly in all the insects except black females. Membrane-bound trehalase activity increased in black males, and decreased in black females. Trehalose and glycogen content and trehalase activity were regulated by differential expression of TRE and TPS genes. Female beetles weighed more than males and survived in low temperatures for longer periods of time, regardless of elytra colour, suggesting that mass is a stronger predictor of overwintering survival rather than colour morph. Our results provide a guide for comparing cold resistance in insects and a theoretical basis for cold storage of H. axyridis for use as natural enemies of pests in biological control programs.

Authors+Show Affiliations

School of Biological and Agricultural Science and Technology, Zunyi Normal University, Zunyi, Guizhou, China.College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China.College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China.School of Biological and Agricultural Science and Technology, Zunyi Normal University, Zunyi, Guizhou, China.College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China.College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China.School of Biological and Agricultural Science and Technology, Zunyi Normal University, Zunyi, Guizhou, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

32191747

Citation

Zeng, Boping, et al. "Effect of Long-term Cold Storage On Trehalose Metabolism of Pre-wintering Harmonia Axyridis Adults and Changes in Morphological Diversity Before and After Wintering." PloS One, vol. 15, no. 3, 2020, pp. e0230435.
Zeng B, Wang S, Li Y, et al. Effect of long-term cold storage on trehalose metabolism of pre-wintering Harmonia axyridis adults and changes in morphological diversity before and after wintering. PLoS ONE. 2020;15(3):e0230435.
Zeng, B., Wang, S., Li, Y., Xiao, Z., Zhou, M., Wang, S., & Zhang, D. (2020). Effect of long-term cold storage on trehalose metabolism of pre-wintering Harmonia axyridis adults and changes in morphological diversity before and after wintering. PloS One, 15(3), e0230435. https://doi.org/10.1371/journal.pone.0230435
Zeng B, et al. Effect of Long-term Cold Storage On Trehalose Metabolism of Pre-wintering Harmonia Axyridis Adults and Changes in Morphological Diversity Before and After Wintering. PLoS ONE. 2020;15(3):e0230435. PubMed PMID: 32191747.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of long-term cold storage on trehalose metabolism of pre-wintering Harmonia axyridis adults and changes in morphological diversity before and after wintering. AU - Zeng,Boping, AU - Wang,Shasha, AU - Li,Yan, AU - Xiao,Zhongjiu, AU - Zhou,Min, AU - Wang,Shigui, AU - Zhang,Daowei, Y1 - 2020/03/19/ PY - 2019/05/05/received PY - 2020/03/01/accepted PY - 2020/3/20/entrez PY - 2020/3/20/pubmed PY - 2020/6/24/medline SP - e0230435 EP - e0230435 JF - PloS one JO - PLoS ONE VL - 15 IS - 3 N2 - Harmonia axyridis is a major bio-control agent of pests in agriculture and forest ecosystems. It is also a globally important invasive insect species. To test whether dark elytra colour is associated with greater cold hardiness, we compared the survival rate of prolonged cold exposure in both yellow and black colour morphs of female and male H. axyridis. We determined the trehalose and glycogen content, trehalase activity, and the dynamics of genes associated with the trehalose metabolic pathway. Yellow forms predominated before winter began, however black forms increased from 11.15 to 30.46% after overwintering. There was no significant difference in trehalose content between the females and males during overwintering. Glycogen content in over-wintering yellow females and black males increased significantly, while it decreased in black females. Soluble trehalase activity increased significantly in all the insects except black females. Membrane-bound trehalase activity increased in black males, and decreased in black females. Trehalose and glycogen content and trehalase activity were regulated by differential expression of TRE and TPS genes. Female beetles weighed more than males and survived in low temperatures for longer periods of time, regardless of elytra colour, suggesting that mass is a stronger predictor of overwintering survival rather than colour morph. Our results provide a guide for comparing cold resistance in insects and a theoretical basis for cold storage of H. axyridis for use as natural enemies of pests in biological control programs. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/32191747/Effect_of_long-term_cold_storage_on_trehalose_metabolism_of_pre-wintering_Harmonia_axyridis_adults_and_changes_in_morphological_diversity_before_and_after_wintering L2 - http://dx.plos.org/10.1371/journal.pone.0230435 DB - PRIME DP - Unbound Medicine ER -