Thermal Preference Ranges Correlate with Stable Signals of Universal Stress Markers in Lake Baikal Endemic and Holarctic Amphipods.
Thermal Preference Ranges Correlate with Stable Signals of Universal Stress Markers in Lake Baikal Endemic and Holarctic Amphipods.
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DOI：
10.1371/journal.pone.0164226
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Timofeyev M
中科院分区：
文献类型：
--
作者：
Axenov-Gribanov D;Bedulina D;Shatilina Z;Jakob L;Vereshchagina K;Lubyaga Y;Gurkov A;Shchapova E;Luckenbach T;Lucassen M;Sartoris FJ;Pörtner HO;Timofeyev M
温度是水生生物最普遍的非生物环境因子。温度范围的波动会导致代谢性能的变化。在这里，我们的目的是确定超过热偏好区域是否与作为无氧代谢指标的普遍细胞应激标志物蛋白质完整性、对氧化应激的反应和乳酸含量的变化相关。贝加尔湖特有的端足类物种疣状EulimnoGammarus(GerstFeldt，1858年)、黄氏Ommatogammarus Huang(DyBowski，1874年)和全北极端足类Gammarus lacustris Sars 1863(甲壳纲)暴露在温度升高的环境中，导致热休克蛋白70(HSP70)和乳酸含量增加，抗氧化酶(过氧化氢酶和过氧化物酶)活性增加，乳酸脱氢酶和谷胱甘肽S转移酶活性降低。因此，所研究的分子和生化标记的稳定区域(没有任何显著变化)与行为偏好温度相关。我们的结论是，所研究的两足动物的热行为反应与细胞水平的代谢过程直接相关。因此，所确定的热范围可能对应于热最优。物种特有的行为反应和应激反应新陈代谢之间的这种关系可能会产生重大的生态后果，导致特定热区的分布(即深度、饲料光谱等)。物种的。因此，通过将具有不同温度偏好的物种分开，减少了物种间的竞争，这反过来又提高了一个物种在其环境中的达尔文适合度。
Temperature is the most pervasive abiotic environmental factor for aquatic organisms. Fluctuations in temperature range lead to changes in metabolic performance. Here, we aimed to identify whether surpassing the thermal preference zones is correlated with shifts in universal cellular stress markers of protein integrity, responses to oxidative stress and lactate content, as indicators of anaerobic metabolism. Exposure of the Lake Baikal endemic amphipod species Eulimnogammarus verrucosus (Gerstfeldt, 1858), Ommatogammarus flavus (Dybowski, 1874) and of the Holarctic amphipod Gammarus lacustris Sars 1863 (Amphipoda, Crustacea) to increasing temperatures resulted in elevated heat shock protein 70 (Hsp70) and lactate content, elevated antioxidant enzyme activities (i.e., catalase and peroxidase), and reduced lactate dehydrogenase and glutathione S-transferase activities. Thus, the zone of stability (absence of any significant changes) of the studied molecular and biochemical markers correlated with the behaviorally preferred temperatures. We conclude that the thermal behavioral responses of the studied amphipods are directly related to metabolic processes at the cellular level. Thus, the determined thermal ranges may possibly correspond to the thermal optima. This relationship between species-specific behavioral reactions and stress response metabolism may have significant ecological consequences that result in a thermal zone-specific distribution (i.e., depths, feed spectrum, etc.) of species. As a consequence, by separating species with different temperature preferences, interspecific competition is reduced, which, in turn, increases a species’ Darwinian fitness in its environment.
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影响因子：
4.9
作者：
Bedulina, D. S.;Evgen'ev, M. B.;Zatsepina, O. G.
通讯作者：
Zatsepina, O. G.
DOI：
10.1016/j.cbpa.2015.04.008
发表时间：
2015-09-01
影响因子：
2.3
作者：
Elder, Leanne E.;Seibel, Brad A.
通讯作者：
Seibel, Brad A.
影响因子：
2
作者：
Afonso, L. O. B.;Hosoya, S.;Johnson, S.
通讯作者：
Johnson, S.
影响因子：
5.2
作者：
DROTAR, A;PHELPS, P;FALL, R
通讯作者：
FALL, R
DOI：
10.1007/s00360-014-0885-1
发表时间：
2015-04-01
影响因子：
2
作者：
Cottin, Delphine;Foucreau, Natacha;Piscart, Christophe
通讯作者：
Piscart, Christophe