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Article Dans Une Revue Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology Année : 2024

REVIEW: Evidence supporting the ‘preparation for oxidative stress’ (POS) strategy in animals in their natural environment

Maximiliano Giraud-Billoud
  • Fonction : Auteur
Daniel C. Moreira
  • Fonction : Auteur
Marina Minari
  • Fonction : Auteur
Aleksandra Andreyeva
  • Fonction : Auteur
Élida G. Campos
  • Fonction : Auteur
Juan M. Carvajalino-Fernández
  • Fonction : Auteur
Aleksandra Istomina
  • Fonction : Auteur
Cuijuan Niu
  • Fonction : Auteur
Yonggang Niu
  • Fonction : Auteur
Luciana Ondei
  • Fonction : Auteur
Marko Prokić
  • Fonction : Auteur
Debadas Sahoo
  • Fonction : Auteur
Janet M. Storey
  • Fonction : Auteur
Kenneth B. Storey
  • Fonction : Auteur
Israel A. Vega
  • Fonction : Auteur
Marcelo Hermes-Lima
  • Fonction : Auteur

Résumé

Hypometabolism is a common strategy employed by resilient species to withstand environmental stressors that would be life-threatening for other organisms. Under conditions such as hypoxia/anoxia, temperature and salinity stress, or seasonal changes (e.g. hibernation, estivation), stress-tolerant species down-regulate pathways to decrease energy expenditures until the return of less challenging conditions. However, it is with the return of these more favorable conditions and the reactivation of basal metabolic rates that a strong increase of reactive oxygen and nitrogen species (RONS) occurs, leading to oxidative stress. Over the last few decades, cases of species capable of enhancing antioxidant defenses during hypometabolic states have been reported across taxa and in response to a variety of stressors. Interpreted as an adaptive mechanism to counteract RONS formation during tissue hypometabolism and reactivation, this strategy was coined “Preparation for Oxidative Stress” (POS). Laboratory experiments have confirmed that over 100 species, spanning 9 animal phyla, apply this strategy to endure harsh environments. However, the challenge remains to confirm its occurrence in the natural environment and its wide applicability as a key survival element, through controlled experimentation in field and in natural conditions. Even under such conditions, numerous confounding factors may complicate data interpretation, but this remains the only approach to provide an integrative look at the evolutionary aspects of ecophysiological adaptations. In this review, we provide an overview of representative cases where the POS strategy has been demonstrated among diverse species in natural environmental conditions, discussing the strengths and weaknesses of these results and conclusions.
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Dates et versions

hal-04531682 , version 1 (04-04-2024)

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Maximiliano Giraud-Billoud, Daniel C. Moreira, Marina Minari, Aleksandra Andreyeva, Élida G. Campos, et al.. REVIEW: Evidence supporting the ‘preparation for oxidative stress’ (POS) strategy in animals in their natural environment. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 2024, pp.111626. ⟨10.1016/j.cbpa.2024.111626⟩. ⟨hal-04531682⟩
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