High oxidative stress despite low energy metabolism and vice versa: Insights through temperature acclimation in an ectotherm

Bury, Stanisław; Cichoń, Mariusz; Bauchinger, Ulf; Sadowska, Edyta T.

doi:10.1016/j.jtherbio.2018.08.003

Cited by 26 publications

(13 citation statements)

References 63 publications

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“…The ability to regulate gas exchange determines the relative vulnerability of this (and potentially other) freshwater tracheates to the synergistic effects of warming and oxygen limitation and constitutes a phenotypically plastic response since trachea and membrane structure morphologies are altered during the lifespan of the organism. Proteins with ROS defence functions have been shown to be up‐regulated due to increased metabolic activity of ectotherms (Bury, Cichoń, Bauchinger, & Sadowska, ), indicating that the observed proteome response to ROS may not be a direct response to hypoxic conditions but to the increased demands on energy metabolism in C. irrorata at the experimental temperatures.…”

Section: Discussionmentioning

confidence: 99%

Comparative proteomics of stenotopic caddisfly Crunoecia irrorata identifies acclimation strategies to warming

2019

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Species' ecological preferences are often deduced from habitat characteristics thought to represent more or less optimal conditions for physiological functioning. Evolution has led to stenotopic and eurytopic species, the former having decreased niche breadths and lower tolerances to environmental variability. Species inhabiting freshwater springs are often described as being stenotopic specialists, adapted to the stable thermal conditions found in these habitats. Whether due to past local adaptation these species have evolved or have lost intra‐generational adaptive mechanisms to cope with increasing thermal variability has, to our knowledge, never been investigated. By studying how the proteome of a stenotopic species changes as a result of increasing temperatures, we investigate if the absence or attenuation of molecular mechanisms is indicative of local adaptation to freshwater springs. An understanding of compensatory mechanisms is especially relevant as spring specialists will experience thermal conditions beyond their physiological limits due to climate change. In this study, the stenotopic species Crunoecia irrorata (Trichoptera: Lepidostomatidae, Curtis 1834) was acclimated to 10, 15 and 20°C for 168 hr. We constructed a homology‐based database and via liquid chromatography‐tandem mass spectrometry (LC‐MS/MS)‐based shotgun proteomics identified 1,358 proteins. Differentially abundant proteins and protein norms of reaction revealed candidate proteins and molecular mechanisms facilitating compensatory responses such as trehalose metabolism, tracheal system alteration and heat‐shock protein regulation. A species‐specific understanding of compensatory physiologies challenges the characterization of species as having narrow tolerances to environmental variability if that characterization is based on occurrences and habitat characteristics alone.

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Section: Discussionmentioning

confidence: 99%

Comparative proteomics of stenotopic caddisfly Crunoecia irrorata identifies acclimation strategies to warming

2019

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“…Oxidative stress in the human body can result from several types of reactive oxygen species (ROS), which are continuously produced as byproducts of aerobic metabolism (Biller and Takahashi, 2018; Bury et al, 2018). Some species of reactive oxygen are highly toxic, causing various diseases, and must be rapidly detoxified by antioxidants through various cellular mechanisms (Apel and Hirt, 2004; Eom et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Physiochemical Analysis, Antioxidant Effects, and Sensory Characteristics of Quark Cheese Supplemented with Ginseng Extract

Kim¹,

Hwang²,

Eum³

et al. 2019

Food Sci Anim Resour

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The objective of this study was to evaluate physicochemical and sensory properties, the texture profile, and antioxidant activity of ginseng extract-supplemented quark cheese as a new cheese product intended to improve public health. After addition of less than 1.0% ginseng extract, the moisture content of quark significantly decreased, while fat and protein levels increased, although microbial counts and lactose and ash contents were not affected significantly (p<0.05). In terms of color, L* values decreased significantly with increasing concentration of ginseng extract, while a* values increased significantly (p<0.05). The results of texture profiling showed that cohesiveness and springiness were unaffected, whereas hardness, gumminess, and chewiness increased significantly. The 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical-scavenging activities of the cheese fortified with 0%, 0.5%, or 1.0% of the ginseng extract were 4.22%±0.12%, 20.14%±1.34%, and 56.32%±1.54%, respectively. The results of sensory analysis indicated that bitterness, ginseng odor, and aftertaste significantly improved with increasing concentration of ginseng extract (p<0.05). However, there was no significant difference in the overall quality attributes of quark cheese between the no-supplement control and samples with less than 0.5% of the ginseng extract (p>0.05), suggesting that these products could help to promote public health as functional foods.

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“…Reactive oxygen species (ROS) and heat shock proteins can be induced by acute heat or cold exposure ( Liu et al, 2018 ). Cold acclimation also increased ROS production in mosquitofish ( Loughland and Seebacher, 2020 ) and grass snakes ( Bury et al, 2018 ), and salmon acclimated to 20°C had greater rates of oxidative phosphorylation but reduced ROS production compared to 12°C acclimated fish ( Gerber et al, 2020 ). Mosquitofish with high acclimation capacity also have greater antioxidant capacities ( Loughland and Seebacher, 2020 ).…”

Section: Resultsmentioning

confidence: 99%

Plasticity of Performance Curves in Ectotherms: Individual Variation Modulates Population Responses to Environmental Change

Seebacher

Little

2021

Front. Physiol.

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Many ectothermic animals can respond to changes in their environment by altering the sensitivities of physiological rates, given sufficient time to do so. In other words, thermal acclimation and developmental plasticity can shift thermal performance curves so that performance may be completely or partially buffered against the effects of environmental temperature changes. Plastic responses can thereby increase the resilience to temperature change. However, there may be pronounced differences between individuals in their capacity for plasticity, and these differences are not necessarily reflected in population means. In a bet-hedging strategy, only a subsection of the population may persist under environmental conditions that favour either plasticity or fixed phenotypes. Thus, experimental approaches that measure means across individuals can not necessarily predict population responses to temperature change. Here, we collated published data of 608 mosquitofish (Gambusia holbrooki) each acclimated twice, to a cool and a warm temperature in random order, to model how diversity in individual capacity for plasticity can affect populations under different temperature regimes. The persistence of both plastic and fixed phenotypes indicates that on average, neither phenotype is selectively more advantageous. Fish with low acclimation capacity had greater maximal swimming performance in warm conditions, but their performance decreased to a greater extent with decreasing temperature in variable environments. In contrast, the performance of fish with high acclimation capacity decreased to a lesser extent with a decrease in temperature. Hence, even though fish with low acclimation capacity had greater maximal performance, high acclimation capacity may be advantageous when ecologically relevant behaviour requires submaximal locomotor performance. Trade-offs, developmental effects and the advantages of plastic phenotypes together are likely to explain the observed population variation.

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High oxidative stress despite low energy metabolism and vice versa: Insights through temperature acclimation in an ectotherm

Cited by 26 publications

References 63 publications

Comparative proteomics of stenotopic caddisfly Crunoecia irrorata identifies acclimation strategies to warming

Comparative proteomics of stenotopic caddisfly Crunoecia irrorata identifies acclimation strategies to warming

Physiochemical Analysis, Antioxidant Effects, and Sensory Characteristics of Quark Cheese Supplemented with Ginseng Extract

Plasticity of Performance Curves in Ectotherms: Individual Variation Modulates Population Responses to Environmental Change

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