Antioxidant defense system and oxidative status in Antarctic fishes: The sluggish rockcod Notothenia coriiceps versus the active marbled notothen Notothenia rossii

Klein, Roberta Daniele; Rosa, Carlos Eduardo da; Colares, Elton Pinto; Robaldo, Ricardo Berteaux; Martinez, Pablo Elías; Bianchini, Adalto

doi:10.1016/j.jtherbio.2017.02.013

Cited by 26 publications

(15 citation statements)

References 39 publications

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“…In addition, uncompensated mitochondrial respiration rates that may reflect a high oxygen and metabolic demand at tissue level, have been found in N. rossii acclimated to 7°C, while the more sub-Antarctic notothenioid Lepidonotothen squamifrons have shown partial compensation of mitochondrial respiration rates (Strobel et al, 2012;Strobel et al, 2013a). Taken together the observed changes in metabolite concentrations and the shifts in metabolic performance detected in other studies (Strobel et al, 2012(Strobel et al, , 2013a(Strobel et al, , 2013bKlein et al, 2017) point to a higher thermal sensitivity of N. rossii compared to N. coriiceps.…”

Section: Differences In the Acclimation Capacities Of The Two Notothesupporting

confidence: 72%

“…The amino acids are most likely used for energy production by catabolism in the gills (see above), which suggests a higher thermal energy demand of N. rossii in comparison to N. coriiceps. Klein et al (2017) reported higher activities of enzymes involved in reactive oxygen detoxification and glutathione production in gill tissue of N. rossii in order to keep levels of oxidative damage similar to those observed in the rockcod N. coriiceps. The maintenance of high enzyme activities comes along with energetic costs and would be another factor influencing the performance capacities of Notothenia rossii.…”

Section: Differences In the Acclimation Capacities Of The Two Notothementioning

confidence: 85%

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Untargeted metabolic profiling reveals distinct patterns of thermal sensitivity in two related notothenioids

Rebelein

Pörtner

Bock

2018

Comparative Biochemistry and Physiology Part A: Molecular &

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Antarctic marine ectothermal animals may be affected more than temperate species by rising temperatures due to ongoing climate change. Their specialisation on stable cold temperatures makes them vulnerable to even small degrees of warming. Thus, addressing the impacts of warming on Antarctic organisms and identifying their potentially limited capacities to respond is of interest. The objective of the study was to determine changes in metabolite profiles related to temperature acclimation. In a long-term experiment adult fish of two Antarctic sister species Notothenia rossii and Notothenia coriiceps were acclimated to 0°C and 5°C for three months. Impacts and indicators of acclimation at the cellular level were determined from metabolite profiles quantified in gill tissue extracts using nuclear magnetic resonance (NMR) spectroscopy. Furthermore, the metabolite profiles of the two con-generic species were compared. NMR spectroscopy identified 37 metabolites that were present in each sample, but varied in their absolute concentration between species and between treatments. A decrease in amino acid levels indicated an increased amino acid catabolism after incubation to 5°C. In addition, long term warming initiated shifts in organic osmolyte concentrations and modified membrane structure observed by altered levels of phospholipid compounds. Differences in the metabolite profile between the two notothenioid species can be related to their divergent lifestyles, especially their different rates of motor activity. Increased levels of the Krebs cycle intermediate succinate and a higher reduction of amino acid concentrations in warm-acclimated N. rossii showed that N. rossii is more affected by warming than N. coriiceps.

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Section: Differences In the Acclimation Capacities Of The Two Notothesupporting

confidence: 72%

Section: Differences In the Acclimation Capacities Of The Two Notothementioning

confidence: 85%

Untargeted metabolic profiling reveals distinct patterns of thermal sensitivity in two related notothenioids

Rebelein

Pörtner

Bock

2018

Comparative Biochemistry and Physiology Part A: Molecular &

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“…N. coriiceps appear to have lower thermal tolerance than N. rossii based on endocrine, metabolic and antioxidant parameters (Kandalski et al, 2018). Also, the more active N. rossii seems to have higher antioxidant defense system (ROS scavenge) enzyme activity than N. coriiceps, which could be related to their habits and different metabolic rates (Klein et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…Research on Antarctic fish immune responses has mainly addressed the effect of thermal stress on the metabolism of carbohydrates and antioxidant defense system (Machado et al, 2014;Klein et al, 2017;Souza et al, 2018), or analyzed the level of transcriptional response of immune genes after stimulation with Poly I:C and with heat-killed cells, E. coli (Ahn et al, 2016) and Psychrobacter sp. (Buonocore et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

LPS Modulates the Expression of Iron-Related Immune Genes in Two Antarctic Notothenoids

et al. 2020

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The non-specific immunity can induce iron deprivation as a defense mechanism against potential bacterial pathogens, but little information is available as to its role in Antarctic fish. In this study the response of iron metabolism related genes was evaluated in liver and head kidney of the Antarctic notothenoids Notothenia coriiceps and Notothenia rossii 7 days after lipopolysaccharide (LPS) injection. Average plasma Fe 2+ concentration was unaffected by treatment in any of the species. The gene expression response to LPS varied between tissues and species, being stronger in N. coriiceps and more prominent in the head kidney than liver. The reaction to LPS was marked by increased individual variability in most genes analyzed, even when the change in expression was not statistically significant, suggesting different individual sensitivity and coping responses in these wild fish. We found that iron related genes had an attenuated and homogenous response to LPS but there was no detectable relationship between plasma Fe 2+ and gene expression. However, overall in both tissues and species LPS exposure set a multilevel response that concur to promote intracellular accumulation of iron, an indication that Antarctic Notothenoids use innate nutritional immunity as a resistance mechanism against pathogens.

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“…For example, Heise et al (2007) found that GSH content was two to three times more concentrated in polar compared to temperate eelpout liver, suggesting that polar eelpout are more susceptible than their North Sea confamilials. Klein et al (2017) putted forward an idea that the higher SOD and CAT activity observed in peripheral tissues of N. rossii respect with N. coriiceps might showed the former need a more powerful ADS than the latter fish species. In this case, it seems that S. aequifasciatus was more susceptible than S. haraldi , and needs more powerful ADS.…”

Section: Discussionmentioning

confidence: 99%

Sensitivity in the antioxidant system of discus fish (Symphysodonspp.) to cold temperature: evidence for species-specific cold resistance

Jin

Wen

Chen

et al. 2019

Preprint

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19The discus fish (Symphysodon spp.) is an endemic species of the Amazon that is 20 among the most popular ornamental fish around the world, and is usually used as the 21 model animal for studying the diversification of Amazon fish. Here, a comparative 22 analysis of two species of discus fish, i.e., S. haraldi and S. aequifasciatus, based on 23 several antioxidant indexes was conducted, to test the hypothesis that cold resistance 24 might correlate with the diversification of discus fish. We set up a continuous 25 sequence of three temperature programs, namely cooling (28 °C to 14 °C; -1 °C/h), 26 cold maintenance (14 °C for 12 h) and recovery (14 °C to 28 °C; +1 °C/h). 27Subordinate function (SF) combined with principal component analysis (PCA) 28 showed that the cold hardiness of S. haraldi during cold treatment was in the order of 29 cooling > cold maintenance ≈ recovery, but the cold hardiness of S. aequifasciatus 30 during cold treatment was in the order of cold maintenance > cooling > recovery. 31 Specifically, the lowest cold hardiness was observed in S. aequifasciatus during 32 recovery, indicating that cold stress resulted in more seriously oxidative stress in S. 33 aequifasciatus than in S. haraldi. Overall, these results show a significant interspecific 34 variation, indicating the correlation between environmental adaptation and the 35 diversification of discus fish.36 37 38The discus fish (Symphysodon spp.) is an important ornamental tropical fish all over 40 the world, originating from the Amazon River (Wen et al., 2018(Wen et al., , 2017. In addition to 41 their Amazon basin-wide distribution, the 3 currently recognized species of the genus 42 Symphysodon (S. aequifasciatus, S. discus, and S. haraldi, Cichlidae, Perciformes) 43 (Bleher et al., 2007; Gross et al., 2009) exhibit a large amount of morphological 44 variation (different color and color patter) and genetic variability associated with 45 different types of biotopes (Farias and Hrbek, 2008; Koh et al., 1999). For example, S. 46 haraldi, the 'bule' discus, is found in the central portion of the Amazon basin (type 47 locality Manacapuru river), S. aequifasciatus, the 'green' discus, is found in the west 48 portion of the Amazon basin (type locality Tef´e River), and S. discus, the. Heckel 49 discus, is found in the Negro River basin (Farias and Hrbek, 2008; Gross et al., 2010). 50 Fish as an ectotherm, ambient temperature which constrains whole-organism 51 performance is one of the most important factors affecting the biogeographic 52 distribution and abundance (Troia and Gido, 2017). Recently, several studies have 53 shown that distinct responses of antioxidant defense systems (ADS) would occur 54 between different locations of fish species toward temperature stress (e.g., Bryant et 55 al., 2018; Chung et al., 2017; Johnston et al., 1998; Rudneva-Titova et al., 1994 56 Shaliutinakolešová et al., 2013). Yet surprisingly few studies have compared thermal 57 performance among closely related warm-water species (Troia and Gido, 2015).58...

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Antioxidant defense system and oxidative status in Antarctic fishes: The sluggish rockcod Notothenia coriiceps versus the active marbled notothen Notothenia rossii

Cited by 26 publications

References 39 publications

Untargeted metabolic profiling reveals distinct patterns of thermal sensitivity in two related notothenioids

Untargeted metabolic profiling reveals distinct patterns of thermal sensitivity in two related notothenioids

LPS Modulates the Expression of Iron-Related Immune Genes in Two Antarctic Notothenoids

Sensitivity in the antioxidant system of discus fish (Symphysodonspp.) to cold temperature: evidence for species-specific cold resistance

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