Acute and chronic effects of temperature on membrane adjustments in the gills of a neotropical catfish
| العنوان: | Acute and chronic effects of temperature on membrane adjustments in the gills of a neotropical catfish |
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| المؤلفون: | Renata Guimarães Moreira, Carlos Arturo Navas Iannini, Cristiéle da Silva Ribeiro, Aline Dal’Olio Gomes, Matthias Schreiner, Carlos Eduardo Tolussi |
| المساهمون: | Universidade de São Paulo (USP), Boku Univ Nat Resources & Life Sci, Universidade Estadual Paulista (UNESP), Univ Anhembi Morumbi |
| المصدر: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Gills, medicine.medical_specialty, Physiology, 030310 physiology, Phospholipid, Biology, MORTALIDADE ANIMAL, Biochemistry, 03 medical and health sciences, chemistry.chemical_compound, Membrane Lipids, Internal medicine, Phosphatidylcholine, medicine, Membrane fluidity, Animals, Fatty acids, Molecular Biology, Sodium pump, Catfishes, Phospholipids, 030304 developmental biology, chemistry.chemical_classification, Phosphatidylethanolamine, 0303 health sciences, Cell Membrane, Fatty Acids, Temperature, Fatty acid, Adaptation, Physiological, Steindachneridion parahybae, Endocrinology, chemistry, Docosahexaenoic acid, sense organs, Acclimation, Catfish, Polyunsaturated fatty acid |
| الوصف: | Made available in DSpace on 2022-04-28T17:22:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Structural modifications in the gill membranes maintain homeostasis under the influence of temperature changes. We hypothesized that thermal acclimation would result in significant modification of phospholipid fatty acids, with modulation of sodium pump activity during acute (24 and 48 h) and chronic (15 days) thermal shifts in the neotropical reophilic catfish Steindachneridion parahybae. Indeed, the time-course experiment showed acute and chronic changes in gill membrane at the lowest temperatures, notably linked to maintenance of membrane fluidity: significant preferential changes in phosphatidylethanolamine, with decrease of saturated fatty acids and increase of C18:1 in all groups kept below 30 degrees C in chronic trial, increase in polyunsaturated fatty acids n6 and C18:1 at 17 and 12 degrees C compared to 24 degrees C, as soon as the temperature was changed (initial time). Additionally, the activity of the sodium pump increased at 12 degrees C, but without apparent connection with the altered lipid environment. The animals maintained at the lowest temperature showed a higher mortality, possibly because of the approach to the minimum critical temperature for this species, and unexpected results of changes in the fatty acid profile, such as decreased docosahexaenoic acid in phosphatidylethanolamine and increased saturated fatty acids in phosphatidylcholine. This set of mechanisms highlights rheostatic adjustments in this species in the face of temperature changes. Univ Sao Paulo, Inst Biociencias, Dept Fisiol, BR-05508090 Sao Paulo, SP, Brazil Boku Univ Nat Resources & Life Sci, Inst Food Sci, A-1180 Vienna, Austria Univ Sao Paulo, Inst Biociencias, Dept Fisiol, Lab Metab & Reprod Organismos Aquat, Sao Paulo, SP, Brazil Univ Estadual Paulista Unesp, Dept Biol & Zootecnia, Fac Engn, Rua Moncao 226, BR-15385000 Ilha Solteira, SP, Brazil Univ Anhembi Morumbi, Campus Mooca, Sao Paulo, SP, Brazil Univ Estadual Paulista Unesp, Dept Biol & Zootecnia, Fac Engn, Rua Moncao 226, BR-15385000 Ilha Solteira, SP, Brazil FAPESP: 08/53966-1 pH FAPESP: 08/57687-0 AP |
| تدمد: | 1879-1107 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72040c96e9d19ffb96f978a0a1eb44bc https://pubmed.ncbi.nlm.nih.gov/34033916 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....72040c96e9d19ffb96f978a0a1eb44bc |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18791107 |
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