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Analysis of subcellular energy metabolism in five Lacertidae lizards across varied environmental conditions
ID
Žagar, Anamarija
(
Author
),
ID
Dajčman, Urban
(
Author
),
ID
Megía-Palma, Rodrigo
(
Author
),
ID
Simčič, Tatjana
(
Author
),
ID
Barroso, Frederico M.
(
Author
),
ID
Baškiera, Senka
(
Author
),
ID
Carretero, Miguel A.
(
Author
)
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https://www.sciencedirect.com/science/article/pii/S1095643324001569
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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 (Q$_{10}$) and Arrhenius activation energy (E$_a$) was recorded in the high-mountain species Iberolacerta monticola.
Language:
English
Keywords:
physiology
,
lacertids
,
aerobic respiration
,
interspecific variability
,
hemoglobin
,
zoology
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
10 str.
Numbering:
Vol. 297, art. 111729
PID:
20.500.12556/RUL-160683
UDC:
591
ISSN on article:
1095-6433
DOI:
10.1016/j.cbpa.2024.111729
COBISS.SI-ID:
206128131
Publication date in RUL:
03.09.2024
Views:
64
Downloads:
42
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Record is a part of a journal
Title:
Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
Shortened title:
Comp. biochem. physiol., Part A Mol. integr. physiol.
Publisher:
Elsevier
ISSN:
1095-6433
COBISS.SI-ID:
43809025
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Secondary language
Language:
Slovenian
Keywords:
fiziologija
,
kuščarice
,
aerobna respiracija
,
medvrstna variabilnost
,
hemoglobin
,
zoologija
,
Lacertidae
Projects
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
P1-0255
Name:
Združbe, interakcije in komunikacije v ekosistemih
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
J1-2466
Name:
WETADAPT - prilagoditveni in plastični potencial fiziologije ektotermov za odzivanje na podnebne spremembe
Funder:
ARIS - Slovenian Research and Innovation Agency
Funding programme:
Young researchers
Funder:
FCT - Fundação para a Ciência e a Tecnologia, I.P.
Project number:
CEECIND/04084/2017
Funder:
Other - Other funder or multiple funders
Funding programme:
Universidade do Porto, Instituto de Ciências, Tecnologias e Agroambiente (ICETA)
Funder:
FCT - Fundação para a Ciência e a Tecnologia, I.P.
Project number:
SFRH/BD/147535/2019
Name:
“Developing, testing and deploying new tools and methods for ecophysiological and field research and conservation – an applied focus on squamates and crocodilians” Título anterior: Winners and losers in a changing environment: A functional approach to the ecology and conservation of crocodilian communities
Acronym:
SFRH/BD/147535/2019
Funder:
Other - Other funder or multiple funders
Funding programme:
ICNF (Portugal)
Funder:
FCT - Fundação para a Ciência e a Tecnologia, I.P.
Funding programme:
9471 - RIDTI
Project number:
PTDC/BIA-CBI/28014/2017
Name:
A reptile model and 3600 m of altitudinal gradient to infer the ectotherm responses to global change in Portugal
Acronym:
GCRESPONSE
Funder:
FCT - Fundação para a Ciência e a Tecnologia, I.P.
Project number:
2022.03391.PTDC
Funder:
EC - European Commission
Funding programme:
Erasmus+
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