Temperature but not ocean acidification affects energy metabolism and enzyme activities in the blue mussel,<i>Mytilus edulis</i>

Matoo, Omera B.; Lannig, Gisela; Bock, Christian; Sokolova, Inna M.

doi:10.1101/2020.11.29.402933

Cited by 4 publications

(5 citation statements)

References 61 publications

(80 reference statements)

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“…These results further confirm our idea that the effect of temperature on phytoplankton-produced δ 13 C POM variations is stronger than factors that receive far greater attention, e.g., [CO 2 aq] and pH. Similarly, recent studies provide evidence that ocean warming rather than acidification controls the coccolithophore calcification 124 and enzyme (e.g., CAs) activities in some marine phytoplankton 125 .…”

Section: Resultssupporting

confidence: 87%

Temperature is a better predictor of stable carbon isotopic compositions in marine particulates than dissolved CO2 concentration

Liu

Kandasamy

Zhai

et al. 2022

Commun Earth Environ

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The stable carbon isotopic composition of marine particulate organic matter (δ13CPOM) varies with source and environmental conditions. Dissolved carbon dioxide (CO2) concentration is thought to influence δ13CPOM more than temperature, but this relationship is poorly constrained in marginal seas. Here we present δ13CPOM, hydrographic and carbonate system variables at the deep chlorophyll maxima of the southern Yellow Sea in late summer 2017. We find δ13CPOM values varied between stable and cyclonic gyre regions, but indicated autochthonous organic matter production and were more strongly correlated with temperature than dissolved CO2 concentration throughout. We find that the relationship between temperature and δ13CPOM was independent of CO2 concentration, whereas the relationship between δ13CPOM and CO2 concentration was dependent on temperature also being correlated with CO2 concentration. We suggest that temperature is the primary determinant of marine δ13CPOM due to temperature-dependent metabolism in phytoplankton, irrespective of inorganic carbon acquisition mode.

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Section: Resultssupporting

confidence: 87%

Temperature is a better predictor of stable carbon isotopic compositions in marine particulates than dissolved CO2 concentration

Liu

Kandasamy

Zhai

et al. 2022

Commun Earth Environ

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“…Hydrolysis and oxidation of lipids are caused by enzymes distributed in the muscles and internal organs of oysters, such as lipoxygenase (LOX), lipase and phospholipase 1,7 . It has been reported that the enzyme still maintains a certain vitality during the cold storage 8,9 . LOX is an oxidoreductase that catalyzes the formation of hydroperoxides from unsaturated fatty acids 10,11 .…”

Section: Introductionmentioning

confidence: 99%

Effects of curcumin‐mediated photodynamic treatment on lipid degradation of oysters during refrigerated storage

Zhang

et al. 2021

J Sci Food Agric

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BACKGROUND Oyster's lipid degradation leads to a decrease in edible and nutritional value. Curcumin‐mediated photodynamic treatment (PDT) is an innovative non‐thermal technology, although evaluation of the oyster's lipid degradation has been scarce. In the present study, we investigated peroxide value, thiobarbituric acid reactive substance, triacylglycerol and free fatty acids to evaluate the effect of curcumin‐mediated PDT on lipid degradation of oysters during refrigerated storage. RESULTS The results showed that curcumin‐mediated PDT could delay oyster's lipid degradation. Next, the activities of enzymes were detected to determine the mechanisms behind the effects of curcumin‐mediated PDT. It was revealed that the activities of lipase, phospholipase A2 (PLA2), phospholipase C (PLC), phospholipase D (PLD) and lipoxygenase (LOX) were significantly inhibited after curcumin‐mediated PDT (P < 0.05). Furthermore, 16 s rRNA analysis established that the relative abundances of Pseudoalteromonas and Psychrilyobacter were reduced by 51.58% and 43.82%, respectively, after curcumin‐mediated PDT. CONCLUSION Curcumin‐mediated PDT could delay oyster's lipid degradation by inhibiting the activities of lipase, PLA2, PLC, PLD and LOX, as well as by changing the oyster's microbial composition, reducing the relative abundance of Pseudoalteromonas and Psychrilyobacter. © 2021 Society of Chemical Industry.

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“…It remains high in spring and early-summer and declines in autumn and early-winter (Zwaan and Zandee 1972). More recent studies on M. edulis glycogen content show that since this is affected by temperature, this could be an indicator of climate change (Clements et al 2018;Matoo et al 2021). As the sampling and extraction of glycogen were not year-round in this study, this provides a baseline glycogen content of these three Philippine mussels.…”

Section: Discussionmentioning

confidence: 87%

Comparison of Glycogen Content from Three Philippine Mussels

Marmita¹,

Yap-Dejeto²,

Hipe³

et al. 2022

Philipp J Sci

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This study was conducted to measure and compare the glycogen content in three Philippine mussels of the family Mytilidae – Perna viridis, Mytella strigata, and Modiolus philippinarum. P. viridis, M. strigata, and M. philippinarum were collected from the provinces of Samar, Cavite, and Iloilo, respectively. P. viridis, locally known as "tahong," is cultured in the Philippines. M. strigata, known as "charru" or black mussel, has a distinct brown to black shell coloration that varies with age and is currently considered as an invasive species in the Philippines. Lastly, M. philippinarum mostly inhabits intertidal mudflats, that form extensive aggregates. These mussels are edible and are a well-known cheap source of animal protein. Extraction of glycogen involved mussel meat preparation, the addition of hydrolyzing agents, and precipitation. Results showed glycogen content varies in different species from 5.5–3.0% yield. This study is a contribution to the lack of recorded biological information regarding Philippine mussels in terms of biochemical content such as glycogen. This information can later be used to assess the mussels’ health, biological, and habitat ecological status.

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Temperature but not ocean acidification affects energy metabolism and enzyme activities in the blue mussel,Mytilus edulis

Cited by 4 publications

References 61 publications

Temperature is a better predictor of stable carbon isotopic compositions in marine particulates than dissolved CO2 concentration

Temperature is a better predictor of stable carbon isotopic compositions in marine particulates than dissolved CO2 concentration

Effects of curcumin‐mediated photodynamic treatment on lipid degradation of oysters during refrigerated storage

Comparison of Glycogen Content from Three Philippine Mussels

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