Hypoxia-induced autoxidation of haemoglobin in the benthic invertebrates Arenicola marina (Polychaeta) and Astarte borealis (Bivalvia) and the possible effects of sulphide

Abele, Doris; Oeschger, R.

doi:10.1016/0022-0981(94)00172-a

Cited by 67 publications

(23 citation statements)

References 25 publications

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“…Nereid polychaetes have hemoglobin as respiratory pigment, and antioxidant defenses prevent it from oxidizing to metahaemoglobin (Abele-Oeschger & Oeschger, 1995). These animals experience anoxia and hypoxia in the field, suggesting that they are tolerant to a stress similar to the ischemia/reperfusion process, known to be a ROS generator (Abele-Oeschger, Oeschger, & Theede, 1994;Abele-Oeschger & Oeschger, 1995;Thomas & Reed, 1990).…”

Section: Discussionmentioning

confidence: 93%

“…These animals experience anoxia and hypoxia in the field, suggesting that they are tolerant to a stress similar to the ischemia/reperfusion process, known to be a ROS generator (Abele-Oeschger, Oeschger, & Theede, 1994;Abele-Oeschger & Oeschger, 1995;Thomas & Reed, 1990). In light of these facts, this work analyzed the enzyme antioxidant response of L. acuta acutely or chronically exposed to copper, a metal that induce ROS generation (Pourahmad & O'Brien, 2000;Nagalakshmi & Prasad, 2001).…”

Section: Discussionmentioning

confidence: 95%

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Oxidative stress responses in two populations of Laeonereis acuta (Polychaeta, Nereididae) after acute and chronic exposure to copper

Geracitano

Bocchetti

Monserrat

et al. 2004

Marine Environmental Research

115

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 95%

Oxidative stress responses in two populations of Laeonereis acuta (Polychaeta, Nereididae) after acute and chronic exposure to copper

Geracitano

Bocchetti

Monserrat

et al. 2004

Marine Environmental Research

115

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“…Spontaneous and self-induced metabolic rate depression (MRD) by burrowing into the sediment and exposing itself to hypoxia for between 1Á5 days [4,5] may be involved in the mitigation and slow down of metabolic ROS production in this oxyconforming bivalve. Moreover, we hypothesized that frequent hypoxia-reoxygenation cycles, inherent to the mode of living in this burrowing species, trigger the antioxidant protection [6,7]. This phenomenon has been reported in several hypoxia tolerant ectotherms [8] where hypoxic triggering of antioxidant activities appears to assure control of oxidative stress on reoxygenation and, in so doing, preserves the beneficial effect of MRD with respect to tissue oxidative damage.…”

Section: Introductionmentioning

confidence: 80%

Imperceptible senescence: Ageing in the ocean quahogArctica islandica

Abele

Strahl

Brey

et al. 2008

Free Radical Research

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“…These include autoxidation of haemoglobin (Hb) (Misra & Fridovich 1972, Caughey & Watkins 1985, Abele-Oeschger & Oeschger 1995 and also of partly reduced CO-substrates of the mitochondrial respiratory chain (Rifkind et al 1993). Moreover, fluctuating PO, in intertidal areas may have an effect comparable to ischaemia-reperfusion injury in vertebrates, in triggering superoxide radical liberation via enzymatic and non-enzymatic reactions (Halliwell & Gutteridge 1985, Storey 1996.…”

Section: Inter-research 1998mentioning

confidence: 99%

Temporal fluctuations and spatial gradients of environmental PO2, temperature, H2O2 and H2S in its intertidal habitat trigger enzymatic antioxidant protection in the capitellid worm Heteromastus filiformis

Abele¹,

Großpietsch²,

Pörtner³

1998

Mar. Ecol. Prog. Ser.

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Activity levels of 2 antioxidant enzymes, catalase (CAT) and superoxide dismutase (SOD), and the rate of oxygen consumption were investigated in body waU tissue of the capitellid polychaete Heteromastus fjlifornis in response to the variability of abiotic factors in the worm's intertidal habitat. A head-down deposit feeder, H. filiformis displayed oxyconforrnity between 1.3 and 13 kPa (10 to 100 torr) PO, under laboratory condtions. An extremely low standard metabolic rate (SMR) equivalent to an oxygen consumption of 0.1 pm01 O2 g-' fw h-' (fw = fresh weight) is consistent with the capacity of the worms to colonize anoxic and potentially sulphidic sedimentary environments. Maximal MO, was 0.3 * 0.09 pm01 g-' fw h-' for small (<300 mg body fw) and 0.25 * 0.09 pm01 g-' fw h-' for large (>500 mg body fw) worms. CAT and SOD activities were higher in summer than in winter worms. Under laboratory conditions, SOD activity in winter worms was not inducible upon acclimation to elevated temperatures, whlle CAT activity was significantly higher at 20 than at 5°C. Summer worms were unaffected by temperature reduction with respect to CAT activities, while SOD activity was significantly reduced upon cooling. Under laboratory con&tions, hypoxia as weU as elevated PO, led to a significant increase m CAT activity, w M e changes in SOD activity were marginal. Experimental hydrogen peroxide (H202) exposure resulted in an increase in CAT activity, whereas hydrogen sulphide (H2S) led to a decrease in CAT activity only if applied under anoxia. SOD activities of H. filiformis were insensitive to H2S in vivo. In situ exposure to elevated H202 concentrations confirmed that just 1 tidal emersion period was sufficient to cause the inducing effect of reactive oxygen species on CAT activities in the worms' natural habitat. It is concluded that short-term changes in CAT activity are triggered by specific environmental stress factors, like fluctuating PO, and hydrogen peroxide concentrations in the upper sediment layer. In contrast, SOD did not respond spontaneously under experimental conditions, but under in situ conditions at the sediment surface of an intertidal sandflat a shift of SOD activity occurred towards the end of an ebb tide emersion period, which led to an increase of SOD activity in the tail compared to the head end of the worms. It is hypothesized that short-term variations in P, , and temperature at the sediment surface, in combination with the vertical gradients of PO,, H2S, temperature, and pH, elicit the observed changes in SOD activity.

show abstract

Hypoxia-induced autoxidation of haemoglobin in the benthic invertebrates Arenicola marina (Polychaeta) and Astarte borealis (Bivalvia) and the possible effects of sulphide

Cited by 67 publications

References 25 publications

Oxidative stress responses in two populations of Laeonereis acuta (Polychaeta, Nereididae) after acute and chronic exposure to copper

Oxidative stress responses in two populations of Laeonereis acuta (Polychaeta, Nereididae) after acute and chronic exposure to copper

Imperceptible senescence: Ageing in the ocean quahogArctica islandica

Temporal fluctuations and spatial gradients of environmental PO2, temperature, H2O2 and H2S in its intertidal habitat trigger enzymatic antioxidant protection in the capitellid worm Heteromastus filiformis

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