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Markus Bernard

As seen in: Wiley Online Library, BioRxiv
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Articles by Markus Bernard

Dissecting Oxidative Stress and Organismic Response to a Temperature Gradient in the Midge Chironomus riparius

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By Burak Bulut, Maximilian Geiss, Markus Bernard, Barbara Feldmeyer
| Wiley Online Library Verified
1 Introduction In their natural habitats, most organisms are subjected to a range of temperatures throughout their lifespan. Temperature can vary across multiple temporal and spatial scales, ranging from gradual changes across seasons overlain by multiday weather periods and rapid fluctuations over the course of a single day, as well as spatial thermal heterogeneity within the habitat.
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Dissecting Oxidative Stress and Organismic Response to various Temperature Regimes in the midge C. riparius

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By Burak Bulut, Maximilian Geiss, Markus Bernard, Barbara Feldmeyer
| BioRxiv
Abstract Oxidative stress, driven by reactive oxygen species (ROS), poses a major challenge for organisms facing temperature fluctuations. This study provides the first direct in vivo measurements of ROS production in an insect, Chironomus riparius, across a broad range of ecologically relevant temperatures. We observed a U-shaped pattern of oxidative stress, with minimal ROS levels within an optimal thermal window (12-18C) and significantly elevated stress at both cold and warm extremes.
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