Antioxidant defenses and oxidative stress parameters in tissues of mud crab (Scylla serrata) with reference to changing salinity

Paital, Biswaranjan; Chainy, G.B.N.

doi:10.1016/j.cbpc.2009.09.007

Cited by 121 publications

(61 citation statements)

References 71 publications

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“…This makes it a factor that can affect the biochemical and physiological processes in living organisms. It is observed that changes in the seawater salinity induce various adaptations at all levels of organisation, from biochemical to behavioral [28]. It is well known that in aquatic ecosystems temperature and dissolved oxygen are likely to influence oxidative processes even more than xenobiotics do.…”

Section: Resultsmentioning

confidence: 99%

Antioxidant enzymes in the liver of Chelidonichthys obscurus from the Montenegrin coastline

et al. 2013

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The activities of antioxidant defence enzymes — total, manganese and copper zinc containing superoxide dismutase (Tot SOD, Mn SOD, CuZn SOD), catalase (CAT), glutathione peroxidase (GSH-Px), glutathione reductase (GR) and biotransformation phase II enzyme glutathione-S-transferase (GST) — in the liver of longfin gurnard (Chelidonichthys obscurus) from the Montenegrin coastline (Adriatic sea) were investigated. The specimens were collected in winter (February) and late spring (May) at two localities: Platamuni (PL, potentially unpolluted) and the Estuary of the River Bojana (EB, potentially polluted). The obtained results show that the activities of Mn SOD, CAT, GSH-Px and GST in winter were significantly lower at EB than at PL. In spring, the activities of CAT and GST were decreased, while GR activity was increased at EB in comparison to PL. The activities of Mn SOD and GST at PL were decreased and GSH-Px, GR and GST activities at EB were increased in spring compared to winter. Our work represents the first study of liver antioxidant enzymes of longfin gurnard from the Montenegrin coastline and reveals that locality, as a variable, has a greater influence on antioxidant enzymes and biotransformation phase II enzyme GST activities compared to season.

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Section: Resultsmentioning

confidence: 99%

Antioxidant enzymes in the liver of Chelidonichthys obscurus from the Montenegrin coastline

et al. 2013

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“…However, studies on other hyperosmoregulating estuarine crab species are controversial: De Martinez Gaspar Martins and Bianchini (2009) and Van Horn et al (2010) reported an increase in antioxidant defense upon hypoosmotic stress, in agreement with our results. Others report activation of the antioxidant system upon hypersalinity exposure (Freire et al, 2011), showing increased oxidative damage under similar circumstances (Paital and Chainy, 2010).…”

Section: Discussionmentioning

confidence: 98%

“…Studies of this type on crustacean species are scarce (e.g. Paital and Chainy, 2010;Van Horn et al, 2010;Freire et al, 2012) but those independently analyzing anterior and posterior gills are even scarcer (e.g. Freire et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Osmoregulation and salinity-induced oxidative stress: is oxidative adaptation determined by gill function?

Rivera‐Ingraham

Barri

Boël

et al. 2015

Journal of Experimental Biology

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Osmoregulating decapods such as the Mediterranean green crab Carcinus aestuarii possess two groups of spatially segregated gills: anterior gills serve mainly respiratory purposes, while posterior gills contain osmoregulatory structures. The co-existence of similar tissues serving different functions allows the study of differential adaptation, in terms of free radical metabolism, upon salinity change. Crabs were immersed for 2 weeks in seawater (SW, 37 ppt), diluted SW (dSW, 10 ppt) and concentrated SW (cSW, 45 ppt). Exposure to dSW was the most challenging condition, elevating respiration rates of whole animals and free radical formation in hemolymph (assessed fluorometrically using C-H 2 DFFDA). Further analyses considered anterior and posterior gills separately, and the results showed that posterior gills are the main tissues fueling osmoregulatory-related processes because their respiration rates in dSW were 3.2-fold higher than those of anterior gills, and this was accompanied by an increase in mitochondrial density (citrate synthase activity) and increased levels of reactive oxygen species (ROS) formation (1.4-fold greater, measured through electron paramagnetic resonance). Paradoxically, these posterior gills showed undisturbed caspase 3/ 7 activity, used here as a marker for apoptosis. This may only be due to the high antioxidant protection that posterior gills benefit from [superoxide dismutase (SOD) in posterior gills was over 6 times higher than in anterior gills]. In conclusion, osmoregulating posterior gills are better adapted to dSW exposure than respiratory anterior gills because they are capable of controlling the deleterious effects of the ROS production resulting from this salinity-induced stress.

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“…AsA is one of the most effective compounds, which improve the tolerance of the plants to oxidative stresses. A wealth of information suggests that AsA plays significant role in protection of plant against several environmental circumstances (Paital and Chainy, 2010), such as salt stress (Shalata and Neumann, 2001), ozone (Sanmartin et al, 2003), UV-B and pathogenesis (Fotopoulos et al, 2006), drought (Fotopoulos et al, 2008), and in heavy metal stress (Vwioko et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Alleviating Effect of Exogenous Application of Ascorbic Acid on Growth and Mineral Nutrients in Cadmium Stressed Barley (Hordeum vulgare) Seedlings

Ullah¹,

Javed²,

Wahid³

et al. 2015

IJAB

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An experiment was carried out in sand-filled pots under normal temperature (28±2ºC) to assess the role of exogenously applied ascorbic acid in alleviating the effect of cadmium (Cd) stress on four barley (Hordeum vulgare L.) genotypes (Jau-83, Jau-87, Paidar 91 and Haider 93). After germination, seedlings were exposed to different Cd concentrations (0, 100, 300, 500 and 700 µM CdCl2) along with AsA (200 mg L -1 ) and grown for 15 days. The results suggested that exposure to increased Cd levels caused a significant reduction in growth and mineral nutrients contents of barley seedlings. However, there was a noticeable difference in the effect of Cd on mineral concentrations among genotypes and the difference mainly coincided with differential accumulation of Cd in the shoot and root tissues. When AsA was applied to Cd-stressed plants, it decreased Cd accumulation in shoots and roots and also showed partial reversal of Cd stress effects. It was also observed that at the same Cd concentrations Cd tolerance index of Jau-83 was the highest among the four barley genotypes, indicating that Jau-83 had lower Cd contents in roots may be more tolerant to Cd stress. The application of AsA was effective in reducing the toxicity of increased Cd by reducing the root or shoots Cd contents, as well as by improving the seedling growth attributes and the mineral nutrients in barley.

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Antioxidant defenses and oxidative stress parameters in tissues of mud crab (Scylla serrata) with reference to changing salinity

Cited by 121 publications

References 71 publications

Antioxidant enzymes in the liver of Chelidonichthys obscurus from the Montenegrin coastline

Antioxidant enzymes in the liver of Chelidonichthys obscurus from the Montenegrin coastline

Osmoregulation and salinity-induced oxidative stress: is oxidative adaptation determined by gill function?

Alleviating Effect of Exogenous Application of Ascorbic Acid on Growth and Mineral Nutrients in Cadmium Stressed Barley (Hordeum vulgare) Seedlings

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