Acute responses of brown mussel (Perna perna) exposed to sub-lethal copper levels: Integration of physiological and cellular responses

Vosloo, Daléne; Sara, Joseph R.; Vosloo, André

doi:10.1016/j.aquatox.2011.10.001

Cited by 32 publications

(24 citation statements)

References 58 publications

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“…In this, as in previous studies (Vosloo et al, 2012(Vosloo et al, , 2013Vosloo and Vosloo, 2010), we attempt to link organismal responses across different levels of organisation. If organismal function is negatively affected, an understanding of processes at lower organisational levels will aid in identifying where the potential adaptive limitations are.…”

Section: Discussionmentioning

confidence: 97%

Metabolic readjustment in juvenile South African abalone (Haliotis midae) acclimated to combinations of temperature and dissolved oxygen levels

Vosloo

Morillion

et al. 2013

Journal of Thermal Biology

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Section: Discussionmentioning

confidence: 97%

Metabolic readjustment in juvenile South African abalone (Haliotis midae) acclimated to combinations of temperature and dissolved oxygen levels

Vosloo

Morillion

et al. 2013

Journal of Thermal Biology

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“…An induction effect of Cd on reactive oxygen species (ROS) production has been found in isolated Penaeus monodon hemocytes . These physiological changes induced by heavy metal may even cause the death of the organism (Vosloo et al 2012). From the above, it may be stated that the toxicity of heavy metal to shrimp and prawn has been well studied from the physiological, cellular and biochemical perspectives.…”

mentioning

confidence: 99%

Expression Profile of Antioxidant Enzymes in Hemocytes from Freshwater Prawn Macrobrachium rosenbergii Exposed to an Elevated Level of Copper

Guo

Miao

Xian

et al. 2015

Bull Environ Contam Toxicol

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This study evaluated the expression level of antioxidant enzymes Cu, Zn-superoxide dismutase (Cu, Zn-SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione S-transferase (GST) in hemocytes of Macrobrachium rosenbergii exposed to copper by real-time PCR (qRT-PCR). Results showed that the mRNA expression of Cu, Zn-SOD increased to reach a peak at 6 h, then recovered to its normal level at 48 h. CAT expression level was significantly increased at 12 h and reached a peak at 24 h, but recovered to its normal level later. GPx expression level was significantly increased at 6 h and reached the peak at 12 h. GST expression level was significantly induced from 12 to 24 h and then dropped to its normal level at 48 h. These results indicated that antioxidant enzymes were inducible, possibly for removing excessive reactive oxygen species to protect prawn from oxidative stress.

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“…Elevated concentrations of copper can have a negative impact on survivorship of many species, including suspension-feeding bivalves (Al-Subiai et al 2011, Crooks et al 2011. Copper also can have sublethal effects that may place stress on bivalve species, reducing the viability of populations through reduced growth rates and lowered reproduction in a contaminated environment (Al-Subiai et al 2011, Vosloo et al 2012.…”

Section: Overview and Research Questionsmentioning

confidence: 99%

“…at exchange sites such as the gills (Strom et al, 2011). More specifically, free copper (Cu 2+ ) is viewed as the most harmful form for organisms (Zirino et al 1998, Strom et al 2011, Vosloo et al 2012. This is because Cu 2+ is able to bind to the tissue of the organism itself and cause physiological damage, including destruction of gas exchange surfaces such as gills (Gregory et al 2002).…”

Section: Copper As An Environmental Toxinmentioning

confidence: 99%

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The Impact of Copper on Non-Indigenous and Native Species of Suspension-Feeding Bivalves in Mission Bay, San Diego, California

Juhl¹

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Native (Chione californiensis) and non-indigenous bivalve species [Musculista senhousia (now known as Arcuatula senhousia), and Venerupis philippinarum] were collected from Mission Bay, San Diego, California and exposed to copper contaminated water at estimated concentrations of 0 ppb, 25 ppb, and 50 ppb over the course of two experimental periods of 18 days and 12 days. Bivalves were placed in tanks in a temperature controlled environment, and measurements of a number of parameters were taken during and after the exposure to copper: survivorship, feeding rates, growth, mucus production, and tissue copper concentrations for the entire body, gills, and digestive tract. These factors were analyzed on their own and in comparison to tissue copper concentration to examine potential relationships. Observations indicated that there were several statistically significant differences, either between copper concentration groups, between species, or both. The majority of sublethal measures showed no statistically significant differences across both experiments, with the exception of whole body copper accumulation. Whole body copper accumulation showed significant differences between Musculista and both Chione and Venerupis, and may suggest a competitive disadvantage in copper contaminated environments, as Chione and Venerupis may be more efficient at removing copper from tissue. Other sublethal measures that did show significance did not show consistency across both experiments or showed contradicting trends, and none showed consistently significant trends when compared with tissue copper concentrations. Algae depletion rate measurements produced inconclusive results. The data indicates that most sublethal biomarkers used in this experiment were not indicators for copper toxicity for the species in this experiment at the tested concentrations, and that of those species, xviii Chione was the most resistant to the effects of copper with respect to mortality and whole body accumulation.

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Acute responses of brown mussel (Perna perna) exposed to sub-lethal copper levels: Integration of physiological and cellular responses

Cited by 32 publications

References 58 publications

Metabolic readjustment in juvenile South African abalone (Haliotis midae) acclimated to combinations of temperature and dissolved oxygen levels

Metabolic readjustment in juvenile South African abalone (Haliotis midae) acclimated to combinations of temperature and dissolved oxygen levels

Expression Profile of Antioxidant Enzymes in Hemocytes from Freshwater Prawn Macrobrachium rosenbergii Exposed to an Elevated Level of Copper

The Impact of Copper on Non-Indigenous and Native Species of Suspension-Feeding Bivalves in Mission Bay, San Diego, California

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