Effects of temperature on growth and fatty acid synthesis in the cyclopoid copepod Paracyclopina nana
| Autor: | Jun Chul Park, Ae-Son Om, Seung-Hwi Lee, Heum Gi Park, Jeonghoon Han, Jae-Seong Lee, Min-Chul Lee, Sujin Kang, Kyung-Hoon Shin, Jayesh Puthumana |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine biology 010604 marine biology & hydrobiology Mrna expression Paracyclopina nana Aquatic Science biology.organism_classification Fecundity 01 natural sciences 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology chemistry Biochemistry Lipid droplet Lipogenesis Food science Growth rate Fatty acid synthesis Copepod |
| Zdroj: | Fisheries Science. 83:725-734 |
| ISSN: | 1444-2906 0919-9268 |
| Popis: | We have used the cyclopoid copepod Paracyclopina nana to understand responses to the temperature shift. To determine the changes of molecular mechanisms, which would lead to physiological changes in P. nana, we investigated mRNA expression involved in lipogenesis, the area of lipid droplets, the ratio of fatty acids, and life parameters (growth and fecundity) in response to temperature changes (15, 20, and 30 °C) with comparative control at 25 °C. Setting the temperature 25 °C as a standard point, there were increases in mRNA expression, the area of the lipid droplets, and fatty acid composition at temperatures below the standard (15 °C), while all the markers mentioned above significantly decreased at higher temperatures than the standard (25 °C). Through fecundity and growth rate experiments, daily nauplii production was reduced and growth retardation was observed at both 15 and 20 °C, but no noticeable differences in the two parameters were observed at 30 °C compared to the control (25 °C). This study provides a better understanding of the effects of temperature on lipogenesis in copepods. |
| Databáze: | OpenAIRE |
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