Academic Journal
Phytochemical-mediated variation in growth, feeding, and life table parameters of Phthorimaea operculella (Lepidoptera: Gelechiidae).
| Τίτλος: | Phytochemical-mediated variation in growth, feeding, and life table parameters of Phthorimaea operculella (Lepidoptera: Gelechiidae). |
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| Συγγραφείς: | Golizadeh A; Department of Plant Protection, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Adrabil, Iran. golizadeh@uma.ac.ir., Abedi Z; Department of Plant Protection, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Adrabil, Iran. |
| Πηγή: | Scientific reports [Sci Rep] 2026 May 08; Vol. 16 (1). Date of Electronic Publication: 2026 May 08. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: London : Nature Publishing Group, copyright 2011- |
| Ιατρικοί όροι (MeSH): | Solanum tuberosum*/parasitology , Solanum tuberosum*/chemistry , Moths*/growth & development , Moths*/physiology , Phytochemicals*/pharmacology , Phytochemicals*/metabolism , Lepidoptera*/growth & development , Lepidoptera*/physiology, Larva/growth & development ; Larva/physiology ; Animals ; Life Tables ; Female ; Feeding Behavior ; Male |
| Περίληψη: | The potato tuber moth, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae), is a major constraint on commercial potato production worldwide. Larvae damage plants by mining the foliage and penetrating tubers, thereby rendering them unmarketable. In the present study, the effects of six potato cultivars (Agria, Fontane, Javid, Jelly, Marfona, and Sprit) on the life table parameters and feeding efficiency of P. operculella were evaluated under controlled laboratory conditions. Data were analyzed based on the age-stage, two-sex life table method. In parallel, we examined biochemical traits associated with host susceptibility and quantified protein, starch, flavonoid, and phenolic contents to evaluate their relationships with the ecological performance and nutritional indices of the pest. The results indicated that P. operculella exhibited the shortest developmental period when reared on Fontane, Marfona, and Sprit, whereas the longest development time was observed on Agria. The Javid cultivar supported the highest intrinsic rate (r) and finite rate of increase (λ), while Agria and Marfona resulted in the lowest values for these parameters. The highest relative growth rate (RGR) was recorded on Fontane, Javid, and Sprit, whereas Agria yielded the lowest RGR. Correlation analyses revealed a positive association between tuber starch content and both developmental duration and net reproductive rate (R₀). In contrast, phenolic content was negatively correlated with R₀ and r. Cluster analysis classified Javid as a relatively susceptible cultivar, while Fontane, Sprit, and Marfona were identified as comparatively more unsuitable to P. operculella population growth. Overall, these findings provide valuable insights into host plant-pest interactions and can contribute to the development and refinement of integrated pest management (IPM) strategies against the potato tuber moth. (© 2026. The Author(s).) |
| Competing Interests: | Declarations. Competing interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
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| Contributed Indexing: | Keywords: Insect-plant interaction; Life table; Nutritional responses; Phytochemicals; Potato tuber moth |
| Substance Nomenclature: | 0 (Phytochemicals) |
| Entry Date(s): | Date Created: 20260508 Date Completed: 20260708 Latest Revision: 20260813 |
| Update Code: | 20260813 |
| PubMed Central ID: | PMC13342551 |
| DOI: | 10.1038/s41598-026-52636-y |
| PMID: | 42103958 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 2045-2322 |
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| DOI: | 10.1038/s41598-026-52636-y |