The Mechanism of Low-Temperature Tolerance in Fish

Soyano, Kiyoshi; Mushirobira, Yuji

doi:10.1007/978-981-13-1244-1_9

Cited by 34 publications

(10 citation statements)

References 86 publications

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“…The impact of temperature has mainly been studied in the context of thermal stress of either extreme heat or cold, e.g. in model organisms such as Drosophila melanogaster, mice, and fish (Christians and Benjamin 2005;Haslbeck et al 2012;Soyano and Mushirobira 2018;Yu et al 2015). Studies on the effects caused by smaller changes in ambient temperature are less common.…”

Section: Introductionmentioning

confidence: 99%

Tissue-specific effects of temperature on proteasome function

Pispa

Matilainen

Holmberg

2020

Cell Stress and Chaperones

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Variation in ambient growth temperature can cause changes in normal animal physiology and cellular functions such as control of protein homeostasis. A key mechanism for maintaining proteostasis is the selective degradation of polyubiquitinated proteins, mediated by the ubiquitin-proteasome system (UPS). It is still largely unsolved how temperature changes affect the UPS at the organismal level. Caenorhabditis elegans nematodes are normally bred at 20 °C, but for some experimental conditions, 25 °C is often used. We studied the effect of 25 °C on C. elegans UPS by measuring proteasome activity and polyubiquitinated proteins both in vitro in whole animal lysates and in vivo in tissue-specific transgenic reporter strains. Our results show that an ambient temperature shift from 20 to 25 °C increases the UPS activity in the intestine, but not in the body wall muscle tissue, where a concomitant accumulation of polyubiquitinated proteins occurs. These changes in the UPS activity and levels of polyubiquitinated proteins were not detectable in whole animal lysates. The exposure of transgenic animals to 25 °C also induced ER stress reporter fluorescence, but not the fluorescence of a heat shock responsive reporter, albeit detection of a mild induction in hsp-16.2 mRNA levels. In conclusion, C. elegans exhibits tissue-specific responses of the UPS as an organismal strategy to cope with a rise in ambient temperature.

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Section: Introductionmentioning

confidence: 99%

Tissue-specific effects of temperature on proteasome function

Pispa

Matilainen

Holmberg

2020

Cell Stress and Chaperones

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“…For most teleosts, the cold stress response is generally considered to be a kind of adaptive response to maintain homeostasis. Prolonged or severe temperature changes that occur outside a specific tolerance may ultimately result in mortality or otherwise affect the organism's fitness [26,27]. Present knowledge of primary responses to cold stress has largely been gained by studying responses in the hypothalamic-pituitary-interrenal (HPI) axis and brain tissues.…”

Section: Discussionmentioning

confidence: 99%

Tissue-Specific and Differential Cold Responses in the Domesticated Cold Tolerant Fugu

Han

Wei

Chen

et al. 2022

Fishes

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Domestication can be defined as the artificial selection in animals to achieve morphological, physiological, and developmental conformity to human needs, with the aim of improving various limitations in species under a human feeding environment. The future sustainability of aquaculture may rely partly on the availability of numerous domesticated fish species. However, the underlying adaptive mechanisms that result in the domestication of fish are still unclear. Because they are poikilothermic, temperature is a key environmental element that affects the entire life of fish, so studying the association between physiological and behavioral changes in low-temperature domesticated fish can provide a model for understanding the response mechanisms of fish under cold stress. Through 5 generations and 10 years of artificial selection at low temperatures, we used cold-tolerant fugu as a biological model to compare transcriptome changes in brain and liver tissues to study the effects of cold stress on fish. It was found that the expression of genes such as apoptosis, p53, oxidative phosphorylation, and mitochondrial β-oxidation in the brain of cold-tolerant fugu was significantly lower than the wild type due to cold stress, while excessive energy metabolism would lead to the production of reactive oxygen species (ROS) and exacerbate the brain damage, thus causing rollover and coma. Meanwhile, under cold stress, the signaling pathways involved in glycogenolysis and lipid metabolism, such as insulin signaling, adipocytokines, and mTOR signaling pathways, were significantly up-regulated in the liver of cold-tolerant fugu. Although the mitochondrial β-oxidation pathway was increased in cold-tolerant fugu liver tissues, the transcriptome was not enriched in apoptotic. These phenomena predict that in response to low-temperature conditions, cold-tolerant fugu employs a dynamic inter-organ metabolic regulation strategy to cope with cold stress and reduce damage to brain tissues.

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“…Our results showed that European sea bass hatches 110 h after fertilization (4.5 days), which makes this species a potential candidate. Embryos could be placed in hypo physiology in the aim to delay hatching by 1 or 2 days (Soyano and Mushirobira 2018). However, if results of meagre eggs' mechanical resistance make it a potential candidate, the meagre hatches around 37 h after fertilization (1.5 days), so this species would be incompatible for transporting fish solely in their embryo phase.…”

Section: Discussionmentioning

confidence: 99%

European sea bass (Dicentrarchus labrax) and meagre (Argyrosomus regius) fertilized egg resistance to a spacecraft launcher vibration qualifying test

Przybyla

Dutto

Bernard³

et al. 2020

Aquacult Int

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Food autonomy represents an essential challenge for the future Moon Village planned by the European Space Agency. Rearing fish on the moon to provide essential amino acids, omega-3 polyunsaturated fatty acids and vitamin B 12 could become a reality using integrated multi-trophic aquaculture (IMTA). The Lunar Hatch programme's goal is to fertilize farmed fish eggs on Earth that would hatch upon arrival at the lunar base. However, the vibrations from a spacecraft's launch are an unusual situation for fish eggs and may have a negative impact on them. European sea bass (Dicentrarchus labrax) and meagre (Argyrosomus regius) eggs were exposed to mechanical stresses using standard protocol performed to approve a satellite for space launch. The hatching rate was evaluated after vibration expositions at different hours post fertilization (hpf). An initial series of tests subjecting the eggs to orbital rotation demonstrated their integrity. In subsequent tests, mechanical stressors acting on the Soyuz spacecraft was simulated to test impact on fish eggs. The results showed egg robustness for European sea bass at 35 hpf (one-third of the embryo development) and 83 hpf (two thirds) and of meagre at 14 hpf (one third), with no significant difference in hatching rate compared with an unshaken control batch. European sea bass embryos and potentially other fish species with similar incubation periods (4-6 days) seem to be good candidates to surviving a spacecraft launch. This paper discusses the findings and suggests possible future research avenues.

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The Mechanism of Low-Temperature Tolerance in Fish

Cited by 34 publications

References 86 publications

Tissue-specific effects of temperature on proteasome function

Tissue-specific effects of temperature on proteasome function

Tissue-Specific and Differential Cold Responses in the Domesticated Cold Tolerant Fugu

European sea bass (Dicentrarchus labrax) and meagre (Argyrosomus regius) fertilized egg resistance to a spacecraft launcher vibration qualifying test

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