2024
Analysis of subcellular energy metabolism in five Lacertidae lizards across varied environmental conditions
ZAGAR, Anamarija, Urban DAJCMAN, Rodrigo MEGIA-PALMA, Tatjana SIMCIC, Frederico M. BARROSO et. al.Základní údaje
Originální název
Analysis of subcellular energy metabolism in five Lacertidae lizards across varied environmental conditions
Autoři
ZAGAR, Anamarija (garant), Urban DAJCMAN, Rodrigo MEGIA-PALMA, Tatjana SIMCIC, Frederico M. BARROSO, Senka NAJMAN BAŠKIERA (191 Chorvatsko, domácí) a Miguel A. CARRETERO
Vydání
Comparative Biochemistry and Physiology -Part A : Molecular and Integrative Physiology, NEW YORK, ELSEVIER SCIENCE INC, 2024, 1095-6433
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10613 Zoology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.300 v roce 2022
Organizační jednotka
Přírodovědecká fakulta
UT WoS
001303253800001
Klíčová slova anglicky
Physiology; Aerobic respiration; Lacertids; Interspecific variability; Hemoglobin
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 23. 9. 2024 13:03, Mgr. Lucie Jarošová, DiS.
Anotace
V originále
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 degrees C, 30 degrees C, 32 degrees C and 34 degrees 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.