Effect of fenitrothion on Spodoptera exigua larval development and ultrastructure of follicle cells
Abstract: The effect of four sublethal concentrations (from 0.01165 to 0.3025 µg per insect, responding to LC10/10, LC10, LC30 and LC50) of the organophosphorus insecticide, fenitrothion, on Spodoptera exigua (Lepidoptera, Noctuidae) larval development and ultrastructure of follicular cells of adult female moths was tested. The most prominent malformations were: breaks in the cuticle, increased mortality during larval/pupal molting, alterations of nuclear envelope, changed heterochromatin pattern and abnormalities in mitochondrial ultrastructure. Some of the alterations are dose-dependent, but the other ones, like organization of rough endoplasmic reticulum (RER), show non-linear response: cells exposed to lower concentrations (LC10/10 and LC10) of the insecticide possessed clusters of accumulated RER, which were absent within the cells exposed to higher ones (LC30 and LC50). Formation of the eggshell was also markedly postponed within the groups exposed to lower doses. These findings prove that even minute amounts of xenobiotics may cause significant changes within exposed populations.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Effect of fenitrothion on Spodoptera exigua larval development and ultrastructure of follicle cells ; volume:64 ; number:1 ; year:2009 ; pages:197-202 ; extent:6
Biologia ; 64, Heft 1 (2009), 197-202 (gesamt 6)
- Creator
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Adamski, Zbigniew
Korolczuk, Daria
Purgiel, Magdalena
Grewling, Anna
Ratajczak, Marlena
Bankiet, Michał
Ziemnicki, Kazimierz
- DOI
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10.2478/s11756-009-0022-x
- URN
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urn:nbn:de:101:1-2409221612350.767167632144
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:28 AM CEST
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Associated
- Adamski, Zbigniew
- Korolczuk, Daria
- Purgiel, Magdalena
- Grewling, Anna
- Ratajczak, Marlena
- Bankiet, Michał
- Ziemnicki, Kazimierz
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Companion crops alter olfactory responses of the fall armyworm (Spodoptera frugiperda) and its larval endoparasitoid (Cotesia icipe)
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Ultrastructure of dorsal root ganglia
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