Ultrastuctural changes in certain nymphal tissues of schistocerca gregaria (orthoptera: acrididae) by some chitin synthesis inhibitors.

Bakr, Reda F. A.; Ghoneim, Karem; Al-Dali, A. G.; Tanani, M. A.

doi:10.21608/eajbsa.2008.15765

Cited by 5 publications

(2 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These histopathological changes by chlorfluazuron to great extent, agree with the results recorded for the same IGR on Musca domestica Bakr and Hussein (1988). In agreement with our obtained results, for some other IGRs on some insect species as Schistocerca gregaria Bakr et al, (2008), Lucilia cuprina Binnington et al, (1987).…”

Section: Susceptibility Testsupporting

confidence: 92%

Ultrastructural changes in integument of Tribolium castaneum (Coleoptera: tenebrionidae) induced by chitin synthesis inhibitor (IGR) chlorfluazuron.

Khaled

2009

Egyptian Academic Journal of Biological Sciences. A, Entomology

View full text Add to dashboard Cite

The present study was planned to investigate the histopathological effects of the chitin synthesis inhibitor chlorfluazuron against the 4 th larval instar of Tribolium castaneum (Coleoptera: Tenebrionidae) under electron microscope level. Toxicity of chlorfluazuron was evaluated under three different temperatures. The sublethal concentrations LC 40 were 2.118, 39.76 and 1.207 ppm, at 20, 29 and 38 • C respectively. Toxicity of this compound increased at relatively high temperature. Ultrastructural studies were carried out on the integument of the prepupae treated as larvae with LC 40 of chlorfluazuron. The treated samples revealed that exuviae of the old cuticle were existed above the new formed integument, some densely-stained material was deposited in endocuticle, procuticle lamellae were disorganized and partially degenerated. Disappearance of moulting fluid. The hypodermis was destructed and detached from endocuticle. Mitochondria were swollen and fusion. Lysis of lysosomelike bodies.

show abstract

Section: Susceptibility Testsupporting

confidence: 92%

Ultrastructural changes in integument of Tribolium castaneum (Coleoptera: tenebrionidae) induced by chitin synthesis inhibitor (IGR) chlorfluazuron.

Khaled

2009

Egyptian Academic Journal of Biological Sciences. A, Entomology

View full text Add to dashboard Cite

show abstract

“…More importantly, it has been suggested that sublethal concentrations of pesticides can affect liver function by affecting energy metabolism [25]. Another study on related insecticides also identified ultrastructural changes in the mitochondria in last instar nymphs after treatment of the 1-day old penultimate instar nymphs of S. gregaria with 1000 ppm of Flufenoxuron or Lufenuron [39]. Therefore, it was necessary to study the biological effects of sublethal concentrations of buprofezin on energy metabolism modes in the liver to determine its potentially hepatotoxic effects.…”

Section: Discussionmentioning

confidence: 99%

Potential hepatic toxicity of buprofezin at sublethal concentrations: ROS-mediated conversion of energy metabolism

Zhu

et al. 2016

Journal of Hazardous Materials

View full text Add to dashboard Cite

Buprofezin is known for its broad-spectrum action and environmental safety. The popularity of buprofezin has raised concerns about its potentially adverse effects on human health and risk to the environment. In this study, we first identified the liver as one of the major organs in which buprofezin accumulated, and we detected a severe oxidative stress response. Next, we demonstrated that sublethal concentrations of buprofezin promoted the conversion of energy metabolism from the aerobic tricarboxylic acid (TCA) cycle and oxidative phosphorylation to anaerobic glycolysis. Importantly, reactive oxygen species (ROS) generation partially accounted for the shunting of the energy metabolism through the buprofezin-mediated inhibition of cytochrome c oxidase activity. ROS directly perturbed the activities of several key TCA cycle enzymes, stimulated glycolysis, and indirectly disturbed the activity of the respiratory chain complex by altering mitochondrial DNA (mtDNA). These findings clarify the potential mechanisms of buprofezin toxicity and provide biomarkers for buprofezin-mediated hepatotoxicity at sublethal concentrations.

show abstract

Ultra-structural changes in the integument induced by the use of three of six forms of allylisothiocyanate tested against Plutella xylostella and Pieris rapae larvae

Mansour

Zhang

et al. 2012

Pesticide Biochemistry and Physiology

View full text Add to dashboard Cite

Ultrastuctural changes in certain nymphal tissues of schistocerca gregaria (orthoptera: acrididae) by some chitin synthesis inhibitors.

Abstract: Ultrastuctural changes in certain nymphal tissues of schistocerca gregaria (orthoptera: acrididae) by some chitin synthesis inhibitors.

Cited by 5 publications

References 37 publications

Ultrastructural changes in integument of Tribolium castaneum (Coleoptera: tenebrionidae) induced by chitin synthesis inhibitor (IGR) chlorfluazuron.

Ultrastructural changes in integument of Tribolium castaneum (Coleoptera: tenebrionidae) induced by chitin synthesis inhibitor (IGR) chlorfluazuron.

Potential hepatic toxicity of buprofezin at sublethal concentrations: ROS-mediated conversion of energy metabolism

Ultra-structural changes in the integument induced by the use of three of six forms of allylisothiocyanate tested against Plutella xylostella and Pieris rapae larvae

Contact Info

Product

Resources

About