Free amino acids and reducing sugars in the freshwater shrimp Gammarus lacustris (Crustacea, Amphipoda) at the initial stage of preparation to winter season

Каранова, М. В.; Andreev, A. N.

doi:10.1134/s0022093010040010

Cited by 13 publications

(17 citation statements)

References 22 publications

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“…An interesting outcome of our studies has been the characterization of amino acid declines during starvation. Amino acids are essential for several functions including energy production, osmoregulation and muscle growth (Carefoot et al, 1992;Rosas et al, 2001;Huong et al, 2010;Karanova and Andreev, 2010). Our studies are in accordance with similar findings which found decreased levels of amino acids in crustaceans in the wild possibly due to starvation-like conditions Nunes, 2003, 2005;Mente et al, 2010).…”

Section: D60-d60-d48-d60-d48-d24-d60-d48-d24-d12-d48 D24 D24 D12 D12 supporting

confidence: 90%

Starvation causes disturbance in amino acid and fatty acid metabolism in Diporeia

Maity

Jannasch

Adamec

et al. 2012

Comparative Biochemistry and Physiology Part B: Biochemistry an

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The benthic amphipod Diporeia spp. was once the predominant macroinvertebrate in deep, offshore regions of the Laurentian Great Lakes. However, since the early 1990s, Diporeia populations have steadily declined across the area. It has been hypothesized that this decline is due to starvation from increasing competition for food with invasive dreissenid mussels. In order to gain a better understanding of the changes in Diporeia physiology during starvation, we applied two-dimensional gas chromatography coupled with time of flight mass spectrometry (GCXGC/TOF-MS) for investigating the responses in Diporeia metabolome during starvation. We starved Diporeia for 60 days and collected five organisms every 12 days for metabolome analyses. Upon arrival to the laboratory, organisms were flash frozen and served as control (day 0). We observed an increase in lipid oxidation and protein catabolism with subsequent declines of essential amino acids (proline, glutamine, and phenylalanine), down-regulation of glycerophospholipid and sphingolipid metabolism, and decreased polyunsaturated fatty acid abundance in nutritionally stressed Diporeia. Abundance of 1-Iodo-2-methylundecane, a metabolite closely related to insect pheromones, also declined with starvation. This research has further substantiated the applicability of GCXGC/TOF-MS as a research tool in the field of environmental metabolomics. The next step is to apply this new knowledge for evaluating nutritional status of feral Diporeia to elucidate the underlying cause(s) responsible for their decline in the Great Lakes.

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Section: D60-d60-d48-d60-d48-d24-d60-d48-d24-d12-d48 D24 D24 D12 D12 supporting

confidence: 90%

Starvation causes disturbance in amino acid and fatty acid metabolism in Diporeia

Maity

Jannasch

Adamec

et al. 2012

Comparative Biochemistry and Physiology Part B: Biochemistry an

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“…In this case, exposure to 1.5 °C could cause cellular damages resulting in the development of oxidative stress. Preparation for such extreme temperatures for G. lacustris like requires enough time to accumulate cryoprotectors 25 and adjust the metabolism in its natural habitat. Besides, we observed the accumulation of glycogen, like in the thermotolerant E. cyaneus .…”

Section: Discussionmentioning

confidence: 99%

“…Eulimnogammarus cyaneus , in contrast, tolerates increased temperatures in the summer by investing resources into the cellular chaperone system 24 . While the cold stenothermal amphipod fauna of Baikal may be stressed in summer by increased temperatures in the littoral, which could be disadvantageous, their ability to maintain a high metabolic activity in winter may outcompete Holarctic species like G. lacustris , which significantly reduces its metabolic activity during the winter 25 . The superiority of Baikal endemic amphipods at low temperature may thus prevent the non-Baikal species to colonize the lake.…”

Section: Introductionmentioning

confidence: 99%

Low annual temperature likely prevents the Holarctic amphipod Gammarus lacustris from invading Lake Baikal

Vereshchagina

Kondrateva

Mutin

et al. 2021

Sci Rep

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Species with effective thermal adaptation mechanisms allowing them to thrive within a wide temperature range can benefit from climatic changes as they can displace highly specialized species. Here, we studied the adaptive capabilities of the Baikal endemic amphipods Eulimnogammarus verrucosus (Gerstfeld, 1858) and Eulimnogammarus cyaneus (Dybowsky, 1874) compared to the potential Holarctic Baikal invader Gammarus lacustris Sars, 1863 at the cellular level including the energy metabolism and the antioxidant system. All species were long-term exposed to a range of temperatures (1.5 °C to mimic winter conditions and the three species-specific preferred temperatures (i.e., 6 °C for E. verrucosus, 12 °C for E. cyaneus and 15 °C for G. lacustris). At 1.5 °C, we found species-specific metabolic alterations (i.e., significantly reduced ATP content and lactate dehydrogenase activity) indicating limitations on the activity level in the Holarctic G. lacustris. Although the two Baikal endemic amphipod species largely differ in thermal tolerance, no such limitations were found at 1.5 °C. However, the cold-stenothermal Baikal endemic E. verrucosus showed changes indicating a higher involvement of anaerobic metabolism at 12 °C and 15 °C, while the metabolic responses of the more eurythermal Baikal endemic E. cyaneus may support aerobic metabolism and an active lifestyle at all exposure temperatures. Rising temperatures in summer may provide a competitive advantage for G. lacustris compared to the Baikal species but the inactive lifestyle in the cold is likely preventing G. lacustris from establishing a stable population in Lake Baikal.

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“…Like PEA, taurine in the process of phylogenesis is revealed in not all species of ectothermic animals. Its content is low in the body of different invertebrate species including freshwater molluscs, insects, and crustacean [12][13][14][15][16], a quantitative rise of its content occurring only in vertebrates [17][18][19]. The littoral molluscs and mussels, in which the taurine content reaches 55-77% of the total pool of free amino acids [20], are an exception among invertebrates and possibly represent an example of biochemical convergence.…”

Section: Discussionmentioning

confidence: 99%

Phosphoethanolamine in brain of the euritherm lake fish Perccottus glehni (Eleotridae, Perciformes, Dyb. 1877) as a phenomenon depending on temperature factor

Каранова

2013

J Evol Biochem Phys

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The present work studied effect of a seasonal decrease of environmental temperature and cold shock on pools of free amino acids (FA) in brain of the euritherm lake fish P. glehni. For the first time, non-protein amino acid, phosphoethanolamine (PEA), revealed in the great amounts under conditions of near-zero temperatures was found in brain of ectothermic animals. An intensive rise of the PEA pool from 0.3% during the summer period to 33.6% at winter was shown to occur in the brain of P. glehni as a result of a seasonal temperature decrease. In contrast, the level of taurine showing the greatest pool in comparison with other FA (29.0% of the total pool) in summer decreases to 8.9% in the beginning of winter period. Similar negative correlation between the taurine and PEA content was found under effect of acute cold shock (1°C): the taurine level decreased for 4 days from 32.2 to 14.5% of the total pool, whereas the PEA level sharply increased (from 2.1 to 15.3%). Both types of the low-temperature actions have revealed, besides PEA, an intensive rise in the pool of serine and accumulation of phosphoserine. The role of PEA in biochemical evolution and adaptation of the brain to low temperatures is discussed. It is supposed that accumulation of PEA, phosphoserine, and serine is associated with changes in the status of membrane phospholipids at low temperatures.

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Free amino acids and reducing sugars in the freshwater shrimp Gammarus lacustris (Crustacea, Amphipoda) at the initial stage of preparation to winter season

Cited by 13 publications

References 22 publications

Starvation causes disturbance in amino acid and fatty acid metabolism in Diporeia

Starvation causes disturbance in amino acid and fatty acid metabolism in Diporeia

Low annual temperature likely prevents the Holarctic amphipod Gammarus lacustris from invading Lake Baikal

Phosphoethanolamine in brain of the euritherm lake fish Perccottus glehni (Eleotridae, Perciformes, Dyb. 1877) as a phenomenon depending on temperature factor

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