Morphological Changes in the Digestive System of &lt;i&gt;Aedes aegypti&lt;/i&gt; L. Induced by [Cu(EDTA)]&lt;sup&gt;2-&lt;/sup&gt; Complex Ions

Gaban, Cleusa Rocha Garcia; <, Eduardo JosÃ© de Arruda; Dourado, Doroty Mesquita; Silva, Lilliam May Grespan E. da; <, Paulo CÃ©sar Cavalcante Vila Nova; <, IsaÃ­as Cabrini

doi:10.5376/jmr.2015.05.0021

Cited by 2 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ultrastructural analyses show that pyriproxyfen had a cytotoxic effect on midgut cells of Aedes aegypti larvae. Midgut of treated larvae has damaged epithelial layer, with cell debris released in the midgut lumen, similar to found in this insect exposed to other new chemistry insecticides (Gaban et al, 2015). Cytoplasm vacuolization followed by cell breakdown releasing cell debris into the midgut lumen has been associated with digestive cell death caused by xenobiotics in different insects (Costa et al, 2014; Fiaz et al, 2018a; Suresh Kumar et al, 2013; Mangia et al, 2018; Martínez et al, 2018b).…”

Section: Discussionsupporting

confidence: 75%

“…Vacuolization and damage to brush border suggests that digestive cells are dying, due to the insecticide toxicity (Costa et al, 2014; Hazarika et al, 2018; Vasantha-Srinivasan et al, 2018). The same histopathological effect was observed in midgut cells of Aedes aegypti (Gaban et al, 2015; Costa et al, 2014) and other insects when treated with different bio and chemical insecticide (Fiaz et al, 2018a, 2018b; Martínez et al, 2018a, 2018b).…”

Section: Discussionsupporting

confidence: 61%

See 1 more Smart Citation

Pyriproxyfen, a juvenile hormone analog, damages midgut cells and interferes with behaviors of Aedes aegypti larvae

Fiaz

Martínez

Plata-Rueda

et al. 2019

PeerJ

View full text Add to dashboard Cite

Juvenile hormone analogs (JHA) are known to interfere with growth and biosynthesis of insects with potential for insecticide action. However, there has been comparatively few data on morphological effects of JHA on insect organs. To determine pyriproxyfen effects on Aedes aegypti larvae, we conducted toxicity, behavioral bioassays and assessed ultrastructural effects of pyriproxyfen on midgut cells. A. aegypti larvae were exposed in aqueous solution of pyriproxyfen LC50 concentrations and evaluated for 24 h. This study fulfilled the toxic prevalence of pyriproxyfen to A. aegypti larvae (LC50 = 8.2 mg L−1). Behavioral observations confirmed that pyriproxyfen treatment significantly changes swimming behavior of larvae, limiting its displacement and speed. The pyriproxyfen causes remarkable histopathological and cytotoxic alterations in the midgut of larvae. Histopathological study reveals presence of cytoplasmic vacuolization and damage to brush border of the digestive cells. The main salient lesions of cytotoxic effects are occurrence of cell debris released into the midgut lumen, cytoplasm rich in lipid droplets, autophagosomes, disorganized microvilli and deformed mitochondria. Data suggest that pyriproxyfen can be used to help to control and eradicate this insect vector.

show abstract

Section: Discussionsupporting

confidence: 75%

Section: Discussionsupporting

confidence: 61%

Pyriproxyfen, a juvenile hormone analog, damages midgut cells and interferes with behaviors of Aedes aegypti larvae

Fiaz

Martínez

Plata-Rueda

et al. 2019

PeerJ

View full text Add to dashboard Cite

show abstract

Anatomical and cytological studies on the cotton leaf worm spodoptera littoralis (Boisd.) larva infected with some bio-insecticides

Badr,

Darwish

2023

J.Umm Al-Qura Univ. Appll. Sci.

View full text Add to dashboard Cite

This study was conducted to investigate the effect of recommended LC50 concentration of three commercial bio insecticides; (Protecto® (Bacillus thuringiensis kurstaki), Viruset® (Spodoptera littoralis NPV), Profect® (Btk & SpliNPV) on fat body and internal organs of the spodoptera littoralis larva treated with these bio insecticides. The treated larvae were dissected and examined under the converted microscope and transmission electron microscope. Results showed that the three compounds have significant effect on fat bodies and internal organs of larva. The greatest effect was observed by the profect compound followed by protecto and viruset. The combination of bacteria and virus increased the amount of fat body compared with suing virus and bacteria individually. Thus, our findings indicated that the combination of bacteria and virus increased the efficiency of each other.

show abstract

Morphological Changes in the Digestive System of <i>Aedes aegypti</i> L. Induced by [Cu(EDTA)]<sup>2-</sup> Complex Ions

Cited by 2 publications

References 22 publications

Pyriproxyfen, a juvenile hormone analog, damages midgut cells and interferes with behaviors of Aedes aegypti larvae

Pyriproxyfen, a juvenile hormone analog, damages midgut cells and interferes with behaviors of Aedes aegypti larvae

Anatomical and cytological studies on the cotton leaf worm spodoptera littoralis (Boisd.) larva infected with some bio-insecticides

Contact Info

Product

Resources

About