Antioxidant activity of Far Eastern bivalves in their natural habitat

Istomina, Aleksandra; Yelovskaya, Olesya; Челомин, В. П.; Karpenko, Alexander; Zvyagintsev, A. Yu.

doi:10.1016/j.marenvres.2021.105383

Cited by 10 publications

(9 citation statements)

References 32 publications

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“…The stimulation of antioxidant defences using mild stress has been reported previously for several bivalve species [15,41,42], suggesting that exposing individuals to mild stressors may confer some degree of protection against long-lasting or more severe stress. Under stressful conditions, it is expected that the enzymatic antioxidant system in mussels is stimulated to cope with the stress, albeit with an associated energetic cost [43][44][45]. In this study, mussels exposed to the long and intermittent emersion treatments showed significant oxidative damage despite having elevated activities of antioxidant enzymes, and this most likely contributed to their high mortality.…”

Section: Discussionmentioning

confidence: 66%

Oxidative Damage and Antioxidants as Markers for the Selection of Emersion Hardening Treatments in GreenshellTM Mussel Juveniles (Perna canaliculus)

Delorme,

Burritt,

Zamora

et al. 2024

Antioxidants

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Transport out of the water is one of the most challenging events for juvenile Perna canaliculus and can be a highly inefficient process, with many juveniles subsequently being lost following extended periods of emersion. Hardening techniques offer a possible method for reducing transport-related stress. In this study, different hardening treatments (short, long and intermittent sub-lethal emersion) were used to prepare ~1.2 mm P.canaliculus for transport (20 h) and subsequent reoxygenation stress during re-immersion (i.e., recovery). The oxidative stress responses, resettlement behaviour, respiration rates and survival of the mussels after transport and during recovery were all assessed. Short emersion (1 h) as a hardening treatment prior to transport did not cause major stress to the mussels, which maintained respiration at control levels, showed significantly stimulated antioxidant defences during recovery, showed greater resettlement behaviour and remained viable after 24 h of recovery. In comparison, the long and intermittent emersion treatments negatively impacted oxidative stress responses and affected the viability of the mussels after 24 h of recovery. This study showed that exposing juvenile P.canaliculus to a mild stress prior to transport may stimulate protective mechanisms, therefore eliciting a hardening response, but care must be taken to avoid overstressing the mussels. Improving the management of stress during the transport of juvenile mussels may be key to minimising mussel losses and increasing harvest production, and biomarkers associated with oxidative stress/antioxidant metabolism could be valuable tools to ensure emersion hardening does not overstress the mussels and reduce survival.

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Section: Discussionmentioning

confidence: 66%

Oxidative Damage and Antioxidants as Markers for the Selection of Emersion Hardening Treatments in GreenshellTM Mussel Juveniles (Perna canaliculus)

Delorme,

Burritt,

Zamora

et al. 2024

Antioxidants

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“…This opinion is based on the results of mammalian and bird studies in which it has been shown that, regardless of oxygen uptake rate, long-lived species show low rates of mitochondrial radical generation and contain lower constitutive levels of antioxidant activity [ 7 , 8 , 12 , 14 ]. Nevertheless, it has been shown that, in the long-lived (naked mole rat) Heterocephalus glaber , the endothelial and smooth muscle cells of carotid arteries and aorta produce comparable—or even higher—levels of ROS compared to short-lived mice [ 50 ].…”

Section: Discussionmentioning

confidence: 99%

The Relationship between Lifespan of Marine Bivalves and Their Fatty Acids of Mitochondria Lipids

Istomina

Zhukovskaya

Mazeika

et al. 2023

Biology

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Marine bivalves belonging to the Mytilidae and Pectinidae Families were used in this research. The specific objectives of this study were: to determine the Fatty Acids (FAs) of mitochondrial gill membranes in bivalves with different lifespans, belonging to the same family, and to calculate their peroxidation index; to compare the levels of ROS generation, malondialdehyde (MDA), and protein carbonyls in the mitochondria of gills, in vitro, during the initiation of free-radical oxation; to investigate whether the FAs of mitochondria gill membranes affect the degree of their oxidative damage and the maximum lifespan of species (MLS). The qualitative membrane lipid composition was uniform in the studied marine bivalves, regardless of their MLS. In terms of the quantitative content of individual FAs, the mitochondrial lipids differed significantly. It is shown that lipid matrix membranes of the mitochondria of long-lived species are less sensitive to in vitro-initiated peroxidation compared with the medium and short-lived species. The differences in MLS are related to the peculiarities of FAs of mitochondrial membrane lipids.

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“…The upregulation of antioxidant systems under environmental stress was coined “Preparation for Oxidative Stress” (POS) [ 2 , 4 , 5 ], which has been described to occur in over 80 animal species from 8 phyla, under laboratory simulations of harsh environmental conditions [ 6 , 7 ]. More recently, the POS phenotype has also been observed to happen naturally in the field for a few animal taxa, including mollusks [ 8 , 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Glutathione Depletion Disrupts Redox Homeostasis in an Anoxia-Tolerant Invertebrate

2023

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The upregulation of endogenous antioxidants is a widespread phenomenon in animals that tolerate hypoxia/anoxia for extended periods. The identity of the mobilized antioxidant is often context-dependent and differs among species, tissues, and stresses. Thus, the contribution of individual antioxidants to the adaptation to oxygen deprivation remains elusive. This study investigated the role of glutathione (GSH) in the control of redox homeostasis under the stress of anoxia and reoxygenation in Helix aspersa, an animal model of anoxia tolerance. To do so, the total GSH (tGSH) pool was depleted with l-buthionine-(S, R)-sulfoximine (BSO) before exposing snails to anoxia for 6 h. Then, the concentration of GSH, glutathione disulfide (GSSG), and oxidative stress markers (TBARS and protein carbonyl) and the activity of antioxidant enzymes (catalase, glutathione peroxidase, glutathione transferase, glutathione reductase, and glucose 6-phosphate dehydrogenase) were measured in foot muscle and hepatopancreas. BSO alone induced tGSH depletion by 59–75%, but no other changes happened in other variables, except for foot GSSG. Anoxia elicited a 110–114% increase in glutathione peroxidase in the foot; no other changes occurred during anoxia. However, GSH depletion before anoxia increased the GSSG/tGSH ratio by 84–90% in both tissues, which returned to baseline levels during reoxygenation. Our findings indicate that glutathione is required to withstand the oxidative challenge induced by hypoxia and reoxygenation in land snails.

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Antioxidant activity of Far Eastern bivalves in their natural habitat

Cited by 10 publications

References 32 publications

Oxidative Damage and Antioxidants as Markers for the Selection of Emersion Hardening Treatments in GreenshellTM Mussel Juveniles (Perna canaliculus)

Oxidative Damage and Antioxidants as Markers for the Selection of Emersion Hardening Treatments in GreenshellTM Mussel Juveniles (Perna canaliculus)

The Relationship between Lifespan of Marine Bivalves and Their Fatty Acids of Mitochondria Lipids

Glutathione Depletion Disrupts Redox Homeostasis in an Anoxia-Tolerant Invertebrate

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