| Title: | Analysis of subcellular energy metabolism in five Lacertidae lizards across varied environmental conditions |
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| Authors: | ID Žagar, Anamarija (Author)
ID Dajčman, Urban (Author)
ID Megía-Palma, Rodrigo (Author)
ID Simčič, Tatjana (Author)
ID Barroso, Frederico (Author)
ID Baškiera, Senka (Author)
ID Carretero, Miguel A. (Author) |
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| Files: |  URL - Source URL, visit https://doi.org/10.1016/j.cbpa.2024.111729
 PDF - Presentation file, download (3,26 MB)
MD5: 3900FAA41037D1042D0F6DCC89B18470
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  NIB - National Institute of Biology
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| Abstract: | Aerobic respiration is the main energy source for most eukaryotes, and efficient mitochondrial energy transfer greatly influences organismal fitness. To survive environmental changes, cells have evolved to adjust their biochemistry. Thus, measuring energy metabolism at the subcellular level can enhance our understanding of individual performance, population dynamics, and species distribution ranges. We investigated three important metabolic traits at the subcellular level in five lacertid lizard species sampled from different elevations, from sea level up to 2000 m. We examined hemoglobin concentration, two markers of oxidative stress (catalase activity and carbonyl concentration) and maximum rate of metabolic respiration at the subcellular level (potential metabolic activity at the electron transport system). The traits were analysed in laboratory acclimated adult male lizards to investigate the adaptive metabolic responses to the variable environmental conditions at the local sampling sites. Potential metabolic activity at the cellular level was measured at four temperatures – 28 °C, 30 °C, 32 °C and 34 °C – covering the range of preferred body temperatures of the species studied. Hemoglobin content, carbonyl concentration and potential metabolic activity did not differ significantly among species. Interspecific differences were found in the catalase activity, Potential metabolic activity increased with temperature in parallel in all five species. The highest response of the metabolic rate with temperature (Q10) and Arrhenius activation energy (Ea) was recorded in the high-mountain species Iberolacerta monticola. |
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| Keywords: | physiology, lacertids, aerobic respiration, interspecific variability, hemoglobin, zoology |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.11.2024 |
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| Year of publishing: | 2024 |
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| Number of pages: | str. 1-10 |
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| Numbering: | Vol. 272, [art. no.] 111729 |
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| PID: | 20.500.12556/DiRROS-20285  |
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| UDC: | 591 |
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| ISSN on article: | 1095-6433 |
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| DOI: | 10.1016/j.cbpa.2024.111729 |
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| COBISS.SI-ID: | 206128131 |
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| Note: | Ostali avtorji: Urban Dajčman, Rodrigo Megía-Palma, Tatjana Simčič, Frederico M. Barroso, Senka Baškiera, Miguel A. Carretero;
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| Publication date in DiRROS: | 03.09.2024 |
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| Views: | 242 |
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| Downloads: | 954 |
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