Please use this identifier to cite or link to this item: https://biore.bio.bg.ac.rs/handle/123456789/1828
Title: Oxidative stress in Pelophylax esculentus complex frogs in the wild during transition from aquatic to terrestrial life
Authors: Prokić, Marko
Gavrić, Jelena
Petrović, Tamara
Despotović, Svetlana
Gavrilović, Branka
Radovanović, Tijana
Krizmanić, Imre 
Pavlović, Slađan
Keywords: Antioxidative system;Anurans;Development;Juvenile;Oxidative stress;Tadpoles
Issue Date: 1-Aug-2019
Rank: M21
Journal: Comparative Biochemistry and Physiology -Part A : Molecular and Integrative Physiology
Abstract: 
© 2019 Elsevier Inc. During life, anuran individuals undergo drastic changes in the course of transition from aquatic to terrestrial habitat, when they are faced with metabolically demanding processes (growth, responses to developmental pressures), which result in increased production of reactive oxygen species (ROS), signaling molecules involved in development that can induce oxidative damage and stress. This situation can be further complicated by environmental influences. The aim of this study was to investigate oxidative stress parameters in naturally developing Pelophylax esculentus complex frogs during four developmental periods: premetamorphosis, prometamorphosis, metamorphic climax and juvenile stage, in order to examine changes in the response of the antioxidative system (AOS) and oxidative damage during the transition from aquatic to terrestrial life. Results show that ontogenetic shifts in anurans are accompanied by different levels of damage and AOS responses, which vary from the increased first-line enzymatic activities during the early period of development (premetamorphosis), through increased changes in the non-enzymatic complement during the metamorphic climax, to changes in both the enzymatic and non-enzymatic components observed in juvenile individuals. Premetamorphic individuals and individuals in metamorphosis displayed higher levels of lipid peroxidation, indicating that direct exposure to the environment for the first time and the modulation of organs are the most susceptible stages for oxidative damage. On the other hand, lower oxidative damage in juveniles points to the ability of their AOS to efficiently respond to challenges of the terrestrial environment. This study highlights the importance of ROS and the AOS of anurans in response to different developmental and/or environmental pressures that individuals face.
URI: https://biore.bio.bg.ac.rs/handle/123456789/1828
ISSN: 1095-6433
DOI: 10.1016/j.cbpa.2019.05.004
Appears in Collections:Journal Article

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