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Cold tolerance is unaffected by oxygen availability despite changes in anaerobic metabolism
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SYSNO ASEP 0463053 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Cold tolerance is unaffected by oxygen availability despite changes in anaerobic metabolism Author(s) Boardman, L. (ZA)
Sorensen, J. G. (DK)
Košťál, Vladimír (BC-A) RID, ORCID
Šimek, Petr (BC-A) RID, ORCID
Terblanche, J. S. (ZA)Number of authors 5 Article number 32856 Source Title Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 6, SEPT 13 (2016)Number of pages 13 s. Language eng - English Country GB - United Kingdom Keywords hypoxia ; cold ; insect Subject RIV ED - Physiology R&D Projects GA13-18509S GA ČR - Czech Science Foundation (CSF) Institutional support BC-A - RVO:60077344 UT WOS 000382917000002 EID SCOPUS 84987738973 DOI 10.1038/srep32856 Annotation In an insect model system (/Thaumatotibia leucotreta/), we experimentallymanipulated oxygen availability while measuring metabolic rate, critical thermal minimum (CTmin), supercooling point and changes in 43 metabolites. Results showed that altering oxygen availability did not affect (non-lethal) CTmin nor (lethal) supercooling point. Metabolomic profiling revealed the upregulation of anaerobic metabolites and alterations in concentrations of citric acid cycle intermediates during and after chill coma exposure. Hypoxia exacerbated the anaerobic metabolite responses induced by low temperatures. These results suggest that cold tolerance of /T. leucotreta /larvae is not set by oxygen limitation, and that anaerobic metabolism in these larvae may contribute to their ability to survive in necrotic fruit.
Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2017 Electronic address http://www.nature.com/articles/srep32856
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