Combined Effects of Diatom-Derived Oxylipins on the Sea Urchin Paracentrotus lividus
| Autor: | Maria Costantini, Loredana Manfra, Luisa Albarano, Roberta Esposito, Nadia Ruocco, Giovanni Libralato, Adrianna Ianora |
|---|---|
| Přispěvatelé: | Esposito, R., Ruocco, N., Albarano, L., Ianora, A., Manfra, L., Libralato, G., Costantini, M. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine oxylipins Oxylipin expression level Gene 01 natural sciences Catalysis Paracentrotus lividus diatoms sea urchin lcsh:Chemistry Inorganic Chemistry 03 medical and health sciences chemistry.chemical_compound Algae biology.animal medicine Physical and Theoretical Chemistry genes lcsh:QH301-705.5 Molecular Biology Sea urchin Cell damage Spectroscopy HEPES biology Chemistry 010604 marine biology & hydrobiology Organic Chemistry Embryogenesis Diatom General Medicine biology.organism_classification medicine.disease Computer Science Applications 030104 developmental biology lcsh:Biology (General) lcsh:QD1-999 Biochemistry embryonic structures |
| Zdroj: | International Journal of Molecular Sciences Volume 21 Issue 3 International Journal of Molecular Sciences, Vol 21, Iss 3, p 719 (2020) |
| ISSN: | 1422-0067 |
| DOI: | 10.3390/ijms21030719 |
| Popis: | Oxylipins are diatom-derived secondary metabolites, deriving from the oxidation of polyunsatured fatty acids that are released from cell membranes after cell damage or senescence of these single-celled algae. Previous results revealed harmful toxic effects of polyunsaturated aldehydes (PUAs) and hydroxyacids (HEPEs) on sea urchin Paracentrotus lividus embryonic development by testing individual compounds and mixtures of the same chemical group. Here, we investigated the combined effects of these compounds on sea urchin development at the morphological and molecular level for the first time. Our results demonstrated that oxylipin mixtures had stronger effects on sea urchin embryos compared with individual compounds, confirming that PUAs induce malformations and HEPEs cause developmental delay. This harmful effect was also confirmed by molecular analysis. Twelve new genes, involved in stress response and embryonic developmental processes, were isolated from the sea urchin P. lividus these genes were found to be functionally interconnected with 11 genes already identified as a stress response of P. lividus embryos to single oxylipins. The expression levels of most of the analyzed genes targeted by oxylipin mixtures were involved in stress, skeletogenesis, development/differentiation, and detoxification processes. This work has important ecological implications, considering that PUAs and HEPEs represent the most abundant oxylipins in bloom-forming diatoms, opening new perspectives in understanding the molecular pathways activated by sea urchins exposed to diatom oxylipins. |
| Databáze: | OpenAIRE |
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