De novo Synthesis of Linoleic Acid in Multiple Collembola Species
| Autor: | Jacintha Ellers, Joachim Ruther, Miriama Malcicka |
|---|---|
| Přispěvatelé: | Animal Ecology |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Essential nutrients Desaturase Linoleic acid Auxotrophy 010603 evolutionary biology 01 natural sciences Biochemistry Linoleic Acid 03 medical and health sciences chemistry.chemical_compound Biosynthesis Species Specificity Animals Arthropods Ecology Evolution Behavior and Systematics Unsaturated fatty acid Nutrition chemistry.chemical_classification biology General Medicine biology.organism_classification Oleic acid Diet De novo synthesis 030104 developmental biology chemistry Fatty Acids Unsaturated PUFAs Animal Nutritional Physiological Phenomena Essential nutrient Bacteria Springtails |
| Zdroj: | Journal of Chemical Ecology, 43(9), 911-919. Springer New York Malcicka, M, Ruther, J & Ellers, J 2017, ' De novo Synthesis of Linoleic Acid in Multiple Collembola Species ', Journal of Chemical Ecology, vol. 43, no. 9, pp. 911-919 . https://doi.org/10.1007/s10886-017-0878-0 |
| ISSN: | 0098-0331 |
| DOI: | 10.1007/s10886-017-0878-0 |
| Popis: | Many ecological interactions in communities take place between consumers and the organisms they feed on. Continuous surplus of specific nutritional compounds in the diet may lead to evolutionary changes in the metabolic capacity of the consumer, leaving the biosynthesis of such compounds prone to genetic decay and render organisms auxotrophic. A nutrient that is essential to many organisms is the unsaturated fatty acid, linoleic acid (LA; 18:2n-6), which is important in the maintenance of cell membrane fluidity and as a precursor for signaling molecules. LA is readily synthesized in bacteria, protozoa and plants, but it was long thought that all animals lack this ability. Although the majority of animals lack the ability for LA biosynthesis, an increasing number of studies have shown that LA is commonly synthesized in arthropods. Here, we investigated a basal hexapod group, Collembola, to shed light on early evolution of LA synthetic ability in arthropods and its relation to dietary composition. We use stable isotope labeling to detect biosynthesis of LA in Collembola fed with 13C–OA oleic acid (OA; 18:1n-9), a precursor of LA. Our data demonstrate that LA biosynthesis is common among Collembola with 10 out of 16 tested species being able to synthesize LA and 4 species lacking this ability. However, we did not find clear evidence for a relationship between LA synthetic ability and the natural diet of species. Thus, the selective pressures underlying LA biosynthesis might be species-specific and further research will shed new light on understanding this evolutionary process. |
| Databáze: | OpenAIRE |
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