{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T15:27:21Z","timestamp":1770391641515,"version":"3.49.0"},"reference-count":37,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2023,11,22]],"date-time":"2023-11-22T00:00:00Z","timestamp":1700611200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Beijing Municipal Natural Science Foundation","award":["6212032"],"award-info":[{"award-number":["6212032"]}]},{"name":"Beijing Municipal Natural Science Foundation","award":["2024"],"award-info":[{"award-number":["2024"]}]},{"name":"State Administration for Market Regulation","award":["6212032"],"award-info":[{"award-number":["6212032"]}]},{"name":"State Administration for Market Regulation","award":["2024"],"award-info":[{"award-number":["2024"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>The management of phosphine (PH3) resistance in stored grain pests is an essential component of implementing timely and effective pest control strategies. The prevailing standard method for PH3 resistance testing involves the exposure of adult insects to a specific concentration over a fixed period. Although it is widely adopted, this method necessitates an extensive period for assay preparation and diagnosis. To address this issue, this study employed Direct Immersion Solid-Phase Microextraction (DI-SPME) coupled with Gas Chromatography-Mass Spectrometry (GC-MS) to compare and analyze the metabolic profiles of PH3-sensitive (TC-S), PH3 weak-resistant (TC-W), and PH3 strong-resistant (TC-SR) Tribolium castaneum (Herbst) adults. A total of 36 metabolites were identified from 3 different PH3-resistant strains of T. castaneum; 29 metabolites were found to present significant differences (p &lt; 0.05) across these groups, with hydrocarbon and aromatic compounds being particularly prevalent. Seven metabolites showed no significant variations among the strains, consisting of four hydrocarbon compounds, two iodo-hydrocarbon compounds, and one alcohol compound. Further multivariate statistical analysis revealed a total of three, two, and nine differentially regulated metabolites between the TC-S versus TC-W, TC-S versus TC-SR, and TC-W versus TC-SR groups, respectively. Primarily, these metabolites comprised hydrocarbons and iodo-hydrocarbons, with the majority being associated with insect cuticle metabolism. This study demonstrates that DI-SPME technology is an effective method for studying differentially expressed metabolites in T. castaneum with different levels of PH3 resistance. This approach may help to provide a better understanding of the development of insect PH3 resistance and act as a valuable reference for the establishment of rapid diagnostic techniques for insect PH3 resistance.<\/jats:p>","DOI":"10.3390\/molecules28237721","type":"journal-article","created":{"date-parts":[[2023,11,23]],"date-time":"2023-11-23T03:45:56Z","timestamp":1700711156000},"page":"7721","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Comparative Analysis of the Metabolic Profiles of Strains of Tribolium castaneum (Herbst) Adults with Different Levels of Phosphine Resistance Based on Direct Immersion Solid-Phase Microextraction and Gas Chromatography-Mass Spectrometry"],"prefix":"10.3390","volume":"28","author":[{"given":"Li","family":"Li","sequence":"first","affiliation":[{"name":"Institute of Equipment Technology, Chinese Academy of Inspection and Quarantine, No. A3 Gaobeidianbeilu, Chaoyang District, Beijing 100123, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6241-6798","authenticated-orcid":false,"given":"Changyao","family":"Shan","sequence":"additional","affiliation":[{"name":"Institute of Equipment Technology, Chinese Academy of Inspection and Quarantine, No. A3 Gaobeidianbeilu, Chaoyang District, Beijing 100123, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qun","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Equipment Technology, Chinese Academy of Inspection and Quarantine, No. A3 Gaobeidianbeilu, Chaoyang District, Beijing 100123, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Baishu","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Equipment Technology, Chinese Academy of Inspection and Quarantine, No. A3 Gaobeidianbeilu, Chaoyang District, Beijing 100123, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tao","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Equipment Technology, Chinese Academy of Inspection and Quarantine, No. A3 Gaobeidianbeilu, Chaoyang District, Beijing 100123, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,11,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1007\/s42690-019-00047-0","article-title":"Damage potential of Tribolium castaneum (Herbst)(Coleoptera: Tenebrionidae) on wheat grains stored in hermetic and non-hermetic storage bags","volume":"40","author":"Atta","year":"2020","journal-title":"Int. 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