Different effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae

Abstract Organisms react to environmental changes through plastic responses that often involve physiological alterations with the potential to modify life-history traits and fitness. Environmentally induced shifts in growth and development in species with complex life cycles determine the timing of...

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Autores principales:	Pablo Burraco, Carmen Díaz-Paniagua, Ivan Gomez-Mestre
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3ba691e4f8624a468895e7d42f5ac4ac
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spelling	oai:doaj.org-article:3ba691e4f8624a468895e7d42f5ac4ac2021-12-02T15:05:18ZDifferent effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae10.1038/s41598-017-07201-z2045-2322https://doaj.org/article/3ba691e4f8624a468895e7d42f5ac4ac2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07201-zhttps://doaj.org/toc/2045-2322Abstract Organisms react to environmental changes through plastic responses that often involve physiological alterations with the potential to modify life-history traits and fitness. Environmentally induced shifts in growth and development in species with complex life cycles determine the timing of transitions between subsequent life stages, as well as body condition at transformation, which greatly determine survival at later stages. Here we show that spadefoot toad larvae surviving pond drying and predators experienced marked alterations in growth and development, and in their fat reserves, oxidative stress, and relative telomere length. Tadpoles accelerated development but reduced growth and consumed more fat reserves when facing pond drying. However, oxidative stress was buffered by increased antioxidant enzyme activity, and telomeres remained unchanged. Predators caused opposite effects: they reduced larval density, hence relaxing competition and allowing faster development and enhanced growth of survivors. Tadpoles surviving predators metamorphosed bigger and had larger fat bodies, increasing their short-term survival odds, but showed signs of oxidative stress and had shorter telomeres. Developmental acceleration and enhanced growth thus seemed to have different physiological consequences: reduced fat bodies and body size compromise short-term survival, but are reversible in the long run, whereas telomere shortening is non-reversible and could reduce long-term survival.Pablo BurracoCarmen Díaz-PaniaguaIvan Gomez-MestreNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pablo Burraco Carmen Díaz-Paniagua Ivan Gomez-Mestre Different effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae
description	Abstract Organisms react to environmental changes through plastic responses that often involve physiological alterations with the potential to modify life-history traits and fitness. Environmentally induced shifts in growth and development in species with complex life cycles determine the timing of transitions between subsequent life stages, as well as body condition at transformation, which greatly determine survival at later stages. Here we show that spadefoot toad larvae surviving pond drying and predators experienced marked alterations in growth and development, and in their fat reserves, oxidative stress, and relative telomere length. Tadpoles accelerated development but reduced growth and consumed more fat reserves when facing pond drying. However, oxidative stress was buffered by increased antioxidant enzyme activity, and telomeres remained unchanged. Predators caused opposite effects: they reduced larval density, hence relaxing competition and allowing faster development and enhanced growth of survivors. Tadpoles surviving predators metamorphosed bigger and had larger fat bodies, increasing their short-term survival odds, but showed signs of oxidative stress and had shorter telomeres. Developmental acceleration and enhanced growth thus seemed to have different physiological consequences: reduced fat bodies and body size compromise short-term survival, but are reversible in the long run, whereas telomere shortening is non-reversible and could reduce long-term survival.
format	article
author	Pablo Burraco Carmen Díaz-Paniagua Ivan Gomez-Mestre
author_facet	Pablo Burraco Carmen Díaz-Paniagua Ivan Gomez-Mestre
author_sort	Pablo Burraco
title	Different effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae
title_short	Different effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae
title_full	Different effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae
title_fullStr	Different effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae
title_full_unstemmed	Different effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae
title_sort	different effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/3ba691e4f8624a468895e7d42f5ac4ac
work_keys_str_mv	AT pabloburraco differenteffectsofaccelerateddevelopmentandenhancedgrowthonoxidativestressandtelomereshorteninginamphibianlarvae AT carmendiazpaniagua differenteffectsofaccelerateddevelopmentandenhancedgrowthonoxidativestressandtelomereshorteninginamphibianlarvae AT ivangomezmestre differenteffectsofaccelerateddevelopmentandenhancedgrowthonoxidativestressandtelomereshorteninginamphibianlarvae
_version_	1718388884896743424

Different effects of accelerated development and enhanced growth on oxidative stress and telomere shortening in amphibian larvae

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