Trehalase regulates energy metabolism in insects by converting trehalose into two glucose molecules. High amounts of trehalase are critical for insect flight and larval stress resistance. However, whether trehalase participates in the development of pesticide resistance remains unclear. In this study, we explored this phenomenon and the mechanism that underlies the regulation of transcription. We found that overexpression of 1 and 2 induced (Bt) resistance in . The promoter sequences of 1 and 2 were also cloned and identified. The dual-luciferase reporter system and RNA interference technology revealed that the expression of 1 and 2 genes is possibly regulated by the CCAAT enhancer-binding protein (C/EBPα). A yeast one-hybrid experiment confirmed the interaction between C/EBPα and the 2 promoter. The findings of this study suggest that C/EBPα mediates the adaptability of to adverse environmental stressors by regulating the expression of trehalase.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9024946 | PMC |
http://dx.doi.org/10.3390/insects13040340 | DOI Listing |
J Fungi (Basel)
November 2024
Science Center for Future Foods, Jiangnan University, Wuxi 214122, China.
Trehalose is crucial for the stress resistance of , primarily through its stabilization of proteins and membranes. The Agt1 transporter, a member of the Major Facilitator Superfamily, mediates trehalose uptake, a key process for maintaining cellular integrity under stress. Despite its importance, the molecular mechanisms of Agt1-mediated trehalose transport remain underexplored.
View Article and Find Full Text PDFInt J Mol Sci
October 2024
College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
Pest Manag Sci
February 2025
Department of Entomology, Kansas State University, Agricultural Research Station-Hays, Hays, KS, USA.
Background: Temperature is an important determinant of developmental and reproductive rates in insects. Here, we investigated the physiological responses of adult beet webworm, Loxostege sticticalis L. (Lepidoptera: Crambidae), to three temperatures (16, 23 and 30 °C) focusing on trehalose metabolism.
View Article and Find Full Text PDFSci Transl Med
September 2024
Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA.
Ecotoxicol Environ Saf
October 2024
School of Life Sciences/Hebei Basic Science Center for Biotic Interaction, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, Baoding 071002, China. Electronic address:
Trehalase plays an important role in insect metabolism and development by hydrolyzing blood sugar trehalose, but it seems to perform primarily an immunomodulatory function in crustaceans whose blood sugar is glucose. Metal ions as pollutants seriously affecting crustacean health, but studies on trehalase in metal immunity are still limited. In this study, a soluble trehalase (NdTre1) that could bind to multiple metals was identified from Neocaridina denticulata sinensis for investigating metal resistance.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!