Impacts of a systemic neonicotinoid insecticide on interactions between non-target arthropods

2016 ◽  
Author(s):  
Deirdre A. Prischmann-Voldseth
Keyword(s):  
Neonicotinoid Insecticide

Molecular mechanisms associated with increased tolerance to the neonicotinoid insecticide imidacloprid in the dengue vector Aedes aegypti

2013 ◽  
Vol 126 ◽  
pp. 326-337 ◽  
Author(s):  
Muhammad Asam Riaz ◽  
Alexia Chandor-Proust ◽  
Chantal Dauphin-Villemant ◽  
Rodolphe Poupardin ◽  
Christopher M. Jones ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Molecular Mechanisms ◽  
Dengue Vector ◽  
Neonicotinoid Insecticide

scholarly journals The role of ascorbic acid combined exposure on Imidacloprid-induced oxidative stress and genotoxicity in Nile tilapia

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Islam M. El-Garawani ◽  
Elsayed A. Khallaf ◽  
Alaa A. Alne-na-ei ◽  
Rehab G. Elgendy ◽  
Gaber A. M. Mersal ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Ascorbic Acid ◽  
Nile Tilapia ◽  
Protective Agent ◽  
Strand Breaks ◽  
Gill Cells ◽  
Significant Amelioration ◽  
Neonicotinoid Insecticide ◽  
Dna Strand

AbstractImidacloprid (Imid), a systemic neonicotinoid insecticide, is broadly used worldwide. It is reported to contaminate aquatic systems. This study was proposed to evaluate oxidative stress and genotoxicity of Imid on Nile tilapia (Oreochromis niloticus) and the protective effect of ascorbic acid (Asc). O. niloticus juveniles (30.4 ± 9.3 g, 11.9 ± 1.3 cm) were divided into six groups (n = 10/replicate). For 21 days, two groups were exposed to sub-lethal concentrations of Imid (8.75 ppm, 1/20 of 72 h-LC50 and 17.5 ppm, 1/10 of 72 h-LC50); other two groups were exposed to Asc (50 ppm) in combination with Imid (8.75 and 17.5 ppm); one group was exposed to Asc (50 ppm) in addition to a group of unexposed fish which served as controls. Oxidative stress was assessed in the liver where the level of enzymatic activities including superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX) in addition to mRNA transcripts and, Lipid peroxidation (LPO) were evaluated. Moreover, mitotic index (MI) and comet assay were performed, in addition, the erythrocytic micronucleus (MN), and nuclear abnormalities (NA) were observed to assess genotoxicity in fish. Imid exposure induced significant (p ˂ 0.05) changes in the antioxidant profile of the juveniles' liver by increasing the activities and gene expression of SOD, CAT and GPX as well as elevating the levels of LPO. DNA strand breaks in gill cells, erythrocytes and hepatocytes along with erythrocytic MN and NA were also significantly elevated in Imid-exposed groups. MI showed a significant (p ˂ 0.05) decrease associated with Imid exposure. Asc administration induced a significant amelioration towards the Imid toxicity (8.75 and 17.5 ppm). A significant protective potency against the genotoxic effects of Imid was evidenced in Asc co-treated groups. Collectively, results highlight the importance of Asc as a protective agent against Imid-induced oxidative stress and genotoxicity in O. niloticus juveniles.

Neonicotinoid insecticide metabolites in the seminal plasma: Associations with semen quality

2021 ◽  
pp. 151407
Author(s):  
Aizhen Wang ◽  
Yanjian Wan ◽  
Lixiao Zhou ◽  
Wei Xia ◽  
Yinsheng Guo ◽  
...  
Keyword(s):  
Seminal Plasma ◽  
Semen Quality ◽  
Neonicotinoid Insecticide

scholarly journals The Effect of Neonicotinoid Insecticide and Fungicide on Sugar Responsiveness and Orientation Behavior of Honey Bee (Apis mellifera) in Semi-Field Conditions

Insects ◽  
2018 ◽  
Vol 9 (4) ◽  
pp. 130 ◽  
Author(s):  
Xingchuan Jiang ◽  
Zhengwei Wang ◽  
Qibao He ◽  
Qiongqiong Liu ◽  
Xinyang Li ◽  
...  
Keyword(s):  
Field Conditions ◽  
Control Group ◽  
Final Decision ◽  
Orientation Behavior ◽  
Pollinator Decline ◽  
Y Maze ◽  
First Choice ◽  
Crop Field ◽  
Neonicotinoid Insecticide ◽  
Flower Odor

Neonicotinoid insecticides are in widespread use around the world, cause pollinator decline. We used semi-field conditions to determine the effect of sublethal insecticide, thiamethoxam, exposure on orientation behavior and sugar responsiveness. Bees could not reject the non-treated flower or the insecticide or insecticide/fungicide treated flower. After bees consumed the insecticide or insecticide/fungicide treated nectar, they could not discriminate between a flower odor or blank control in a Y-maze when making a first choice. We also found that treated bees wander back and forth in both arms to make a final decision about food location, and used longer duration in the Y maze than the control group. Sugar responsiveness was also reduced after bees were fed with insecticide or insecticide/fungicide treated food, one week was needed for them to display the same level of responsiveness as the control group. The thiamethoxam or thiamethoxam/carbendazol treated crop field does not act as an olfactory repellent to the bee, but it does affect its post-consumption behavior.

Sublethal Effects of the Neonicotinoid Insecticide Thiamethoxam on the Transcriptome of the Honey Bees (Hymenoptera: Apidae)

2017 ◽  
Vol 110 (6) ◽  
pp. 2283-2289 ◽  
Author(s):  
Teng-Fei Shi ◽  
Yu-Fei Wang ◽  
Fang Liu ◽  
Lei Qi ◽  
Lin-Sheng Yu
Keyword(s):  
Honey Bees ◽  
Sublethal Effects ◽  
Neonicotinoid Insecticide

scholarly journals Dinotefuran: A Potential Neonicotinoid Insecticide Against Resistant Mosquitoes

2004 ◽  
Vol 41 (4) ◽  
pp. 712-717 ◽  
Author(s):  
Vincent Corbel ◽  
Stephane Duchon ◽  
Morteza Zaim ◽  
Jean-Marc Hougard
Keyword(s):  
Neonicotinoid Insecticide
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