Effects of Solanum nigrum L. extract and its main glycoalkaloids on selected tissues of Tenebrio molitor L. as factors increasing the toxicity of fenitrothion insecticide

During the research, the influence of the black nightshade (Solanum nigrum) unripe fruit extract and its main glycoalkaloids on selected physiological aspects of a yellow mealworm (Tenebrio molitor) was checked for potential usage against this pest. As a next step, the toxic concentrations of fenitrotion (LC50 and LC40) were calculated for the description of the influence of the S. nigrum extract on the toxicity of fenitrothion in two strategies of application. In the first strategy, the extract was mixed with fenitrothion in the ratio 1:1 and applied to the larvae, and in the second strategy, the extract was given 24 h before fenitrothion application. The results showed, that the S. nigrum extract causes sublethal effects such as changes in the activity of visceral muscles, changes in the concentration of stored biomolecules, and disturbances in the midgut and fat body cells in T. molitor. Glycoalkaloids present in the S. nigrum extract cause sublethal toxic effects in yellow mealworm. The differences in the effects caused by the extract and single glycoalkaloids indicate the cooperative action of both glycoalkaloids. The S. nigrum extract applied at the same time with fenitrothion did not increase the lethality of T. molitor larvae comparing to the effects caused by fenitrothion, however, it caused sublethal effects. Appropriate correlation of the S. nigrum extract application before fenitrothion caused significant increase of T. molitor mortality and strengthen the sublethal effects.

Author dc:creator

• Spochacz, Marta

Advisors dc:contributor.advisor

• Adamski, Zbigniew. Promotor
• Szymczak-Cendlak, Monika. Promotor

• Solanum nigrum extract
• glycoalkaloids
• fenitrothion
• Tenebrio molitor
• ultrastructure
• ekstrakt z Solanum nigrum
• glikoalkaloidy
• fenitrotion
• ultrastruktura

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language.iso

en

Identifier

hdl:10593/26066

OAI record oai:identifier

https://repozytorium.amu.edu.pl/server/oai/request?verb=GetRecord&metadataPrefix=dim&identifier=oai%3Arepozytorium.amu.edu.pl%3A10593%2F26066