Gut Microbiota of Drosophila subobscura Contributes to Its Heat Tolerance and Is Sensitive to Transient Thermal Stress

The gut microbiota can contribute to host physiology leading an increase of resistance abiotic stress conditions. For instance, temperature has profound effects on ectotherms, and the role thermal tolerance ectotherms is a matter recent research. However, most these studies have been focused single static temperatures instead evaluating in wide range stressful temperatures. Additionally, there evidence supporting that sensitive environmental temperature, which induces changes its composition diversity. These evaluated acclimation (>2 weeks) microbiota, but we know little about impact transient diversity microbiota. Thus, investigated heat Drosophila subobscura by measuring conventional axenic flies exposed different (35, 36, 37, 38°C) estimating landscape for both treatments. Conventional mild conditions exhibited higher than flies, whereas at were no differences between flies. We also assessed taxonomical abundance, diversity, community structure comparing non-stressed (exposed 21°C) heat-stressed 34°C) from sexes. Bacterial indices, bacterial abundances, changed this response was sex-dependent. In general, our findings provide influences modifies structural levels. results demonstrate contributes highly stress, could important consequences fitness, population risk extinction, vulnerability current future climatic