Microplastic Fibers Increase Sublethal Effects of AgNP and AgNO 3 in Daphnia magna by Changing Cellular Energy Allocation

2021 ◽  
Author(s):  
Paula S. Tourinho ◽  
Ana Rita R. Silva ◽  
Cátia S. A. Santos ◽  
Marija Prodana ◽  
Violeta Ferreira ◽  
...  
Keyword(s):  
Daphnia Magna ◽  
Sublethal Effects ◽  
Energy Allocation ◽  
Cellular Energy

scholarly journals Sublethal effects of spinosad on some biochemical parameters of Xanthogaleruca luteola (Müller) (Coleoptera: Chrysomelidae)

2014 ◽  
Vol 50 (No. 4) ◽  
pp. 199-206
Author(s):  
B. Mohammadzadeh Tamam ◽  
M. Ghadamyari ◽  
A. Sahragard ◽  
A. Karimi-Malati
Keyword(s):  
Glycogen Content ◽  
Sublethal Effects ◽  
Energy Allocation ◽  
Glutathione S Transferase ◽  
Biochemical Tests ◽  
Cellular Energy ◽  
The Third ◽  
Available Energy ◽  
Xanthogaleruca Luteola ◽  
Esterase Activities

The effect of spinosad on some biochemical characteristics of Xanthogaleruca luteola was investigated. LC<sub>30</sub> and LC<sub>50 </sub>of spinosad for the third instar larvae were determined as 1.6 and 2.9 ppm, respectively. Biochemical tests were carried out on the 3<sup>rd</sup> instar larvae treated with LC<sub>30</sub> and LC<sub>50</sub> of spinosad. The LC<sub>30</sub> concentration decreased carbohydrate and glycogen content and increased lipid content significantly. There was a significant decrease in carbohydrate, glycogen, and protein contents following the exposure to LC<sub>50</sub> concentration. Available energy of the larvae exposed to LC<sub>30</sub> of spinosad increased significantly, whereas it decreased significantly at LC<sub>50</sub>. However, the energy consumed was increased at both concentrations significantly. Cellular energy allocation of larvae treated with LC<sub>50</sub> concentrations of spinosad decreased significantly. Glutathione-S-transferase and esterase activities were increased significantly at LC<sub>50</sub>. However, lipase activity was decreased at both concentrations. &nbsp;

scholarly journals Cellular energy allocation in the predatory bug, Andrallus spinidens Fabricius (Hemiptera: Pentatomidae), following sublethal exposure to diazinon, fenitrothion, and chlorpyrifos

2014 ◽  
Vol 54 (1) ◽  
pp. 78-84 ◽  
Author(s):  
Moloud Gholamzadeh Chitgar ◽  
Jalil Hajizadeh ◽  
Mohammad Ghadamyari ◽  
Azadeh Karimi-Malati ◽  
Mahbobe Sharifi ◽  
...  
Keyword(s):  
Adverse Effect ◽  
Sublethal Effects ◽  
Biological Control Agent ◽  
Marked Change ◽  
Energy Allocation ◽  
Control Agent ◽  
Energy Reserves ◽  
Cellular Energy ◽  
Rate Of Oxygen Consumption ◽  
Andrallus Spinidens

Abstract It is necessary to study the biochemical changes in insects exposed to toxicants if we want to predict the potential of various chemicals on the natural enemy. Physiological energy, as a biochemical biomarker, may be affected by many pesticides including organophosphate compounds. Therefore, in this study, the sublethal effects of diazinon, fenitrothion, and chlorpyrifos on the cellular energy allocation (CEA) of the predatory bug, Andrallus spinidens Fabricius (Hemiptera: Pentatomidae), a potential biological control agent, was studied on 5th-instar nymphs. Among the energy reserves of the A. spinidens nymphs, only total protein was significantly affected by pesticide treatments, and the highest value was observed in chlorpyrifos treatment. The energy available (Ea) and energy consumption (Ec) in A. spinidens were significantly affected by these pesticides. In exposed bugs, these parameters were affected by fenitrothion and chlorpyrifos more than diazinon. The activity of the electron transport system (ETS) in the Ec assay showed that A. spinidens exposed to chlorpyrifos had the highest rate of oxygen consumption. Although, there was no significant change in CEA, the insecticides caused a marked change in the physiological balance of A. spinidens. The results suggested that the adverse effect of these insecticides on A. spinidens should be considered in Integrated Pest Management (IPM) programs.

Alternation of immune parameters and cellular energy allocation of Chlamys farreri under ammonia-N exposure and Vibrio anguillarum challenge

2012 ◽  
Vol 32 (5) ◽  
pp. 741-749 ◽  
Author(s):  
Xingqiang Wang ◽  
Lingling Wang ◽  
Chen Yao ◽  
Limei Qiu ◽  
Huan Zhang ◽  
...  
Keyword(s):  
Vibrio Anguillarum ◽  
Energy Allocation ◽  
Chlamys Farreri ◽  
Cellular Energy ◽  
Immune Parameters

Acute, chronic and sublethal effects of the herbicide propanil on Daphnia magna

Chemosphere ◽  
2003 ◽  
Vol 53 (8) ◽  
pp. 857-864 ◽  
Author(s):  
M.J. Villarroel ◽  
E. Sancho ◽  
M.D. Ferrando ◽  
E. Andreu
Keyword(s):  
Daphnia Magna ◽  
Sublethal Effects ◽  
Herbicide Propanil
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