Energy reserve modification in different age groups of Daphnia schoedleri (Anomopoda: Daphniidae) exposed to hexavalent chromium

Arzate-Cárdenas, Mario Alberto; Martínez‐Jerónimo, Fernando

doi:10.1016/j.etap.2012.03.003

Cited by 28 publications

(7 citation statements)

References 51 publications

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“…These molecules are structurally relevant and an immediate source of energy for cells [20]. Carbohydrates have been related mainly to an increase in energy demands for detoxification processes to cope with the effects of chemical contaminants [21]. The band at 1400 cm −1 is because of the COO − symmetric chain of vibration of amino acids and fatty acids.…”

Section: Principal Component Analysismentioning

confidence: 99%

Toxicity impact of fenvalerate on the gill tissue of Oreochromis mossambicus with respect to biochemical changes utilizing FTIR and principal component analysis

Velmurugan¹,

Senthilkumaar²,

Karthikeyan³

2018

J Biol Phys

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The use of pesticides in agriculture can make their way into the earth and wash into the amphibian system causing ecological stress. This study aims to understand the changes occurring in gill tissues as a result of fenvalerate exposure using Fourier-transform infrared spectroscopy. The intensity ratio of the selected bands I/I I/I, and I/I measures changes in proteins, lipids, and carbohydrates. Curve-fitting analysis was performed in the selected band region to analyze the quantitative changes of proteins, lipids, and carbohydrates. The band area ratio of CH/asCH+ sCH shows the absence of a long chain of fatty acids due to fenvalerate treatment. The band area ratio of asCH/sCH increases for higher sublethal concentrations, which shows the lower disorder of lipid acyl chain flexibility. A decrease in lipids was found in lower sublethal concentrations. The secondary structure of proteins affirms β sheet development. Carbohydrate metabolism of gill tissues demonstrates a decrease in glycogen contents. A further decrease in glycogen content and an increase in lactic acid were observed when presented to a fenvalerate concentration. PCA plots indicate distinct variations among the biochemical parameters of the gill tissues. This study provides a quantitative examination of assessing pesticide toxicity in aquatic environments.

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Section: Principal Component Analysismentioning

confidence: 99%

Toxicity impact of fenvalerate on the gill tissue of Oreochromis mossambicus with respect to biochemical changes utilizing FTIR and principal component analysis

Velmurugan¹,

Senthilkumaar²,

Karthikeyan³

2018

J Biol Phys

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“…Physiological status indicators can give valuable information about the general health condition in a study organism in situations of long term toxic stress. In this connection, the assessment of energy reserves (in terms of protein, carbohydrate and lipid contents) as a marker to evaluate the organisms' energetic budget and general healthiness has attracted attention (Arzate-Cardenas and Martinez-Jeronimo, 2012;De Coen and Janssen, 2003;Mouneyrac et al, 2010). Also specific animal behaviours can be applied as markers for detection of chemical stresses in a study organism, examples of such behavioural biomarkers are traits related to mussel filter-feeding activity and fish swimming performance (Amiard-Triquet, 2009;Beitinger, 1990;Glegg and Rowland, 1996;Vieira et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Environmental harm assessment of a wastewater discharge from Hammerfest LNG: A study with biomarkers in mussels (Mytilus sp.) and Atlantic cod (Gadus morhua)

Beyer

Aarab

Tandberg

et al. 2013

Marine Pollution Bulletin

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Biologically treated wastewater (WW) from the Hammerfest LNG (liquefied natural gas) plant is discharged to the sea. A study using biomarkers in mussels and Atlantic cod was performed to examine whether this discharge meets a zero harmful emission requirement. Caging of mussels close to the outfall and exposure of mussels and fish to WW in the laboratory were conducted, and a suite of contaminant responsive markers was assessed in exposed animals. In mussels the markers included chemical contaminant levels, haemocyte lysosomal instability and nucleus integrity, cellular energy allocation, digestive gland and gonad histopathology and shell-opening behaviour. In fish, biliary PAH metabolites and gill histopathology biomarkers were measured. A consistent cause-effect relationship between WW treatments and markers measured in test animals was not found. The results therefore indicate that the WW emission is unlikely to represent a significant stress factor for the local marine environment under the conditions studied.

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“…In this way, the potential risks of pesticides were evaluated individually or in combination. The IBR index was calculated based on the mean and standard deviation (SD) for each biomarker at each exposure (Arzate‐Cárdenas and Martínez‐Jerónimo 2012). The average value for each response was standardized separately using the formula Y = (Xm)/SD, where Y is the standardized value of the biochemical marker, X is the average value of a biochemical marker for each treatment, and m is the average of the biochemical markers calculated for the treatments.…”

Section: Methodsmentioning

confidence: 99%

Evaluating Multiple Biochemical Markers in Xenopus laevis Tadpoles Exposed to the Pesticides Thiacloprid and Trifloxystrobin in Single and Mixed Forms

Uçkun

Özmen

2021

Enviro Toxic and Chemistry

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Pesticide exposure is thought to be one of the common reasons for the decline in amphibian populations, a phenomenon that is a major threat to global biodiversity. Although the single effects of pesticides on amphibians have been well studied, the effects of mixtures are not well known. The present study aimed to evaluate the acute toxicity of the insecticide thiacloprid and the fungicide trifloxystrobin on early developmental stages of Xenopus laevis using various biochemical markers (glutathione S-transferase, glutathione reductase, acetylcholinesterase, carboxylesterase, glutathione peroxidase, catalase, alanine aminotransferase, aspartate aminotransferase, lactate dehydrogenase, Na + K + -adenosine triphosphatase [ATPase], Ca 2+ -ATPase, Mg 2+ -ATPase, and total ATPase). The median lethal concentrations (LC50s) of thiacloprid and trifloxystrobin were determined to be 3.41 and 0.09 mg a.i. L -1 , respectively. Tadpoles were exposed to the LC50, LC50/2, LC50/10, LC50/20, LC50/50, and LC50/100 of these pesticides. Both pesticides significantly affected (inhibited/activated) the biomarkers even at low concentrations. The pesticides showed a synergistic effect when applied as a mixture and altered the biomarkers more than when applied individually. In conclusion, we can assume that tadpoles are threatened by these pesticides even at environmentally relevant concentrations. Our findings provide important data to guide management of the ecotoxicological effects of these pesticides on nontarget amphibians.

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Energy reserve modification in different age groups of Daphnia schoedleri (Anomopoda: Daphniidae) exposed to hexavalent chromium

Cited by 28 publications

References 51 publications

Toxicity impact of fenvalerate on the gill tissue of Oreochromis mossambicus with respect to biochemical changes utilizing FTIR and principal component analysis

Toxicity impact of fenvalerate on the gill tissue of Oreochromis mossambicus with respect to biochemical changes utilizing FTIR and principal component analysis

Environmental harm assessment of a wastewater discharge from Hammerfest LNG: A study with biomarkers in mussels (Mytilus sp.) and Atlantic cod (Gadus morhua)

Evaluating Multiple Biochemical Markers in Xenopus laevis Tadpoles Exposed to the Pesticides Thiacloprid and Trifloxystrobin in Single and Mixed Forms

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