Impact of Seasonal Temperature Decrease and Cold Shock on the Composition of Free Amino Acids and Phosphomonoethers in Various Organs of Amur Sleeper Percottus glenii (Eleotridae)

Каранова, М. В.

doi:10.1134/s0032945218040069

Cited by 10 publications

(2 citation statements)

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“…Cold stress affects biological enzyme activity, reduces, or hinders cell metabolism and protein synthesis [ 11 ]. Studies on Perccottus glenii showed that the composition of free amino acids in different tissues changed under long-term cold stress [ 43 ]. In our present study, trypsin was decreased sharply under hypothermia stress, indicating that the protein digestive activity was decreased in freshwater drum [ 44 , 45 , 46 ].…”

Section: Discussionmentioning

confidence: 99%

PPAR Signaling Maintains Metabolic Homeostasis under Hypothermia in Freshwater Drum (Aplodinotus grunniens)

Chen

Xue

et al. 2023

Metabolites

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Aplodinotus grunniens, known as freshwater drum, is a kind of eurythermal freshwater fish that is widely distributed in North America. In 2019, our research group reached a milestone on its artificial breeding and cultivation and have investigated its physiological adaption to the environment, providing a breakthrough and prospects for aquaculture. However, its adaptability and metabolic homeostasis to hypothermia is not fully understood. In this experiment, cold stress was conducted at 18 °C (LT18) and 10 °C (LT10) with 25 °C as control (Con) for 8 days to explore the effects of short-term hypothermia on the physiology and metabolism of freshwater drum. From the results, the level of free essential amino acids in LT18 and LT10 decreased significantly after 2 days cold stress compared with Con. Furthermore, plasma total triglyceride (TG) content and lipase (LPS) activity were decreased at LT10 for 2d. With RNA-seq in the liver, metabolic-related signaling, especially amino acid synthesis and lipid metabolism, was inhibited by hypothermia. Specifically, the PPAR signaling pathway is correlated with the inhibition of lipid and amino acid metabolism induced by hypothermia. These data confirmed that PPAR signaling maintains lipid and amino acid metabolic homeostasis during cold stress. These results give a theoretical foundation for hypothermia resistance in the area of metabolic homeostasis for freshwater drum.

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Section: Discussionmentioning

confidence: 99%

PPAR Signaling Maintains Metabolic Homeostasis under Hypothermia in Freshwater Drum (Aplodinotus grunniens)

Chen

Xue

et al. 2023

Metabolites

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“…Furthermore, the absence of a relationship between body length and histidine‐taurine content showed that the differences between both Orestias species were not determined by size or growth, and the differences observed could be mainly due to different physiological functions, such as osmotic pressure requirements. A study in Perccottus glenii demonstrated that cold water temperature also affected other changes in amino acids apart from the taurine‐histidine exchange, such as serine, the latter likely linked to the formation of phosphoserine and phosphatidylserine, both important in membrane protection at low temperature (Karanova, 2018).…”

Section: Discussionmentioning

confidence: 99%

Detailed whole‐body nutrient analysis identifies differences in feeding ecology between related fish species: The case of Orestias native Andean killifish in Lake Titicaca

Loayza

Muñoz-Saravia

Troch

et al. 2023

Animal Physiology Nutrition

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Body nutrient profiles in ecological studies allow for relating the nutritional status of consumers and their effects on the movement and retention of elements in ecosystems, as well as reflecting feeding conditions and habitat quality. This study compared the detailed whole‐body nutrient composition (macronutrients, minerals, fatty acids and amino acids) of two omnivorous natives Orestias killifish from Lake Titicaca (Orestias agassizii and Orestias luteus, Valenciennes), the largest lake in the Andes, as an indirect tool to understand differences in their feeding ecology. Although both species are usually described as omnivorous fish, both have amphipods (Hyalella spp) as their main food source. Our results showed that both killifish had a comparable macronutrient composition, and the mineral concentrations of Mg, P and Ca (reflecting bony structures) differed between them. Many of the saturated fatty acids were significantly lower in O. luteus, and O. agassizii had higher concentrations of cis‐vaccenic acid (18:1n11 (cis)), supporting the idea of a higher algal contribution to the diet of this fish. The lower histidine and higher taurine concentrations in O. agassizii compared with O. luteus (independent of body size) may reflect its ubiquitous behaviour and plasticity. This study shows how whole‐body nutrient analysis can identify differences in feeding ecology and feeding behaviour between related species.

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Metabolic and anti-oxidative stress responses to low temperatures during the waterless preservation of the hybrid grouper (Epinephelus fuscogutatus♀ × Epinephelus lanceolatus♂)

et al. 2019

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Impact of Seasonal Temperature Decrease and Cold Shock on the Composition of Free Amino Acids and Phosphomonoethers in Various Organs of Amur Sleeper Percottus glenii (Eleotridae)

Cited by 10 publications

References 20 publications

PPAR Signaling Maintains Metabolic Homeostasis under Hypothermia in Freshwater Drum (Aplodinotus grunniens)

PPAR Signaling Maintains Metabolic Homeostasis under Hypothermia in Freshwater Drum (Aplodinotus grunniens)

Detailed whole‐body nutrient analysis identifies differences in feeding ecology between related fish species: The case of Orestias native Andean killifish in Lake Titicaca

Metabolic and anti-oxidative stress responses to low temperatures during the waterless preservation of the hybrid grouper (Epinephelus fuscogutatus♀ × Epinephelus lanceolatus♂)

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Impact of Seasonal Temperature Decrease and Cold Shock on the Composition of Free Amino Acids and Phosphomonoethers in Various Organs of Amur Sleeper Percottus glenii (Eleotridae)

Cited by 10 publications

References 20 publications

PPAR Signaling Maintains Metabolic Homeostasis under Hypothermia in Freshwater Drum (Aplodinotus grunniens)

PPAR Signaling Maintains Metabolic Homeostasis under Hypothermia in Freshwater Drum (Aplodinotus grunniens)

Detailed whole‐body nutrient analysis identifies differences in feeding ecology between related fish species: The case of Orestias native Andean killifish in Lake Titicaca

Metabolic and anti-oxidative stress responses to low temperatures during the waterless preservation of the hybrid grouper (Epinephelus fuscogutatus♀ × Epinephelus lanceolatus♂)

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Metabolic and anti-oxidative stress responses to low temperatures during the waterless preservation of the hybrid grouper (Epinephelus fuscogutatus♀ × Epinephelus lanceolatus♂)