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Menail HA, Cormier SB, Ben Youssef M, Jørgensen LB, Vickruck JL, Morin P, Boudreau LH, Pichaud N. Flexible Thermal Sensitivity of Mitochondrial Oxygen Consumption and Substrate Oxidation in Flying Insect Species. Front Physiol 2022; 13:897174. [PMID: 35547573 PMCID: PMC9081799 DOI: 10.3389/fphys.2022.897174] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/06/2022] [Indexed: 12/26/2022] Open
Abstract
Mitochondria have been suggested to be paramount for temperature adaptation in insects. Considering the large range of environments colonized by this taxon, we hypothesized that species surviving large temperature changes would be those with the most flexible mitochondria. We thus investigated the responses of mitochondrial oxidative phosphorylation (OXPHOS) to temperature in three flying insects: the honeybee (Apis mellifera carnica), the fruit fly (Drosophila melanogaster) and the Colorado potato beetle (Leptinotarsa decemlineata). Specifically, we measured oxygen consumption in permeabilized flight muscles of these species at 6, 12, 18, 24, 30, 36, 42 and 45°C, sequentially using complex I substrates, proline, succinate, and glycerol-3-phosphate (G3P). Complex I respiration rates (CI-OXPHOS) were very sensitive to temperature in honeybees and fruit flies with high oxygen consumption at mid-range temperatures but a sharp decline at high temperatures. Proline oxidation triggers a major increase in respiration only in potato beetles, following the same pattern as CI-OXPHOS for honeybees and fruit flies. Moreover, both succinate and G3P oxidation allowed an important increase in respiration at high temperatures in honeybees and fruit flies (and to a lesser extent in potato beetles). However, when reaching 45°C, this G3P-induced respiration rate dropped dramatically in fruit flies. These results demonstrate that mitochondrial functions are more resilient to high temperatures in honeybees compared to fruit flies. They also indicate an important but species-specific mitochondrial flexibility for substrate oxidation to sustain high oxygen consumption levels at high temperatures and suggest previously unknown adaptive mechanisms of flying insects’ mitochondria to temperature.
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Affiliation(s)
- Hichem A Menail
- New Brunswick Centre for Precision Medicine, Moncton, NB, Canada.,Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada
| | - Simon B Cormier
- New Brunswick Centre for Precision Medicine, Moncton, NB, Canada.,Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada
| | - Mariem Ben Youssef
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada
| | | | - Jess L Vickruck
- Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, Fredericton, NB, Canada
| | - Pier Morin
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada
| | - Luc H Boudreau
- New Brunswick Centre for Precision Medicine, Moncton, NB, Canada.,Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada
| | - Nicolas Pichaud
- New Brunswick Centre for Precision Medicine, Moncton, NB, Canada.,Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada
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Cao Z, Liu H, Zhao B, Pang Q, Zhang X. Extreme Environmental Stress-Induced Biological Responses in the Planarian. BIOMED RESEARCH INTERNATIONAL 2020; 2020:7164230. [PMID: 32596359 PMCID: PMC7305541 DOI: 10.1155/2020/7164230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/25/2020] [Indexed: 12/26/2022]
Abstract
Planarians are bilaterally symmetric metazoans of the phylum Platyhelminthes. They have well-defined anteroposterior and dorsoventral axes and have a highly structured true brain which consists of all neural cell types and neuropeptides found in a vertebrate. Planarian flatworms are famous for their strong regenerative ability; they can easily regenerate any part of the body including the complete neoformation of a functional brain within a few days and can survive a series of extreme environmental stress. Nowadays, they are an emerging model system in the field of developmental, regenerative, and stem cell biology and have offered lots of helpful information for these realms. In this review, we will summarize the response of planarians to some typical environmental stress and hope to shed light on basic mechanisms of how organisms interact with extreme environmental stress and survive it, such as altered gravity, temperature, and oxygen, and this information will help researchers improve the design in future studies.
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Affiliation(s)
- Zhonghong Cao
- School of Life Sciences, Shandong University of Technology, 266 Xincun Western Road, Zibo 255049, China
| | - Hongjin Liu
- School of Life Sciences, Shandong University of Technology, 266 Xincun Western Road, Zibo 255049, China
| | - Bosheng Zhao
- School of Life Sciences, Shandong University of Technology, 266 Xincun Western Road, Zibo 255049, China
| | - Qiuxiang Pang
- School of Life Sciences, Shandong University of Technology, 266 Xincun Western Road, Zibo 255049, China
| | - Xiufang Zhang
- School of Life Sciences, Shandong University of Technology, 266 Xincun Western Road, Zibo 255049, China
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