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Efecto de la dieta sobre el proteoma de paralarvas de Octopus vulgaris

Authors: Varó, I. (Inmaculada); Hontoria, F. (Francisco); Monroig, Ó. (Óscar); Iglesias-Estévez, J. (José); Cardenete, G. (Gabriel); Almansa, E. (Eduardo); Navarro, J.C. (Juan Carlos);

Efecto de la dieta sobre el proteoma de paralarvas de Octopus vulgaris

Abstract

En la actualidad el cultivo del pulpo común (Octopus vulgaris) se ve frenado por la alta mortalidad durante los primeras fases de desarrollo larvario. Aunque las causas de las mortalidades masivas de las paralarvas no están bien definidas, se apunta al estrés nutricional causado por la dieta como una de los factores principales. En este estudio se analiza el efecto de la dieta en paralarvas de pulpo mediante una aproximación proteómica, con el objetivo de buscar nuevos biomarcadores de estrés nutricional. Se han identificado 50 proteínas del total de las que presentaban expresión diferencial en cada condición analizada, destacando proteínas relacionadas con metabolismo de carbohidratos: gliceraldehido-3-fosfato deshidrogenasa (GAPDH), trifosfatoisomerasa e isocitrato dehidrogenasa NAPD+ dependiente; metabolismo de pirimidinas y beta–alanina y biosíntesis de vitamina B5 y CoA: dihidropirimidasa; metabolismo energético: arginina cinasa; sistema de detoxificación: glutatión-S transferasa (GST); de estrés: proteínas de estrés térmico (HSP70);estructura de la lente del ojo: S-cristalino; y citoesqueleto: actina, actina-beta/gamma1 y beta actina. Los resultados obtenidos permiten definir “proteomas” característicos de paralarvas en función de la dieta; así como el uso de estas proteínas como nuevos biomarcadores para evaluar el estrés nutricional de las mismas.

Nowadays, the common octopus (Octopus vulgaris) culture is hampered by massive mortalities occurring during early life-cycle stages (paralarvae). Although the causes of the high paralarvae mortality are not yet well defined and understood, the nutritional stress caused by diet is pointed out as one of the main factors. In this study the effect of diet on paralarvae is analysed trough a proteomic approach, to search for new biomarkers of nutritional stress. A total of 50 proteins showing differential expression in each condition analysed have been identified, highlighting proteins related with carbohydrate metabolism: glyceraldehyde-3-phosphate-dedydrogenase (GAPDH), triosephosphate isomerase and NADP+-specific isocitrate dehydrogenase; pyrimidine and beta-alanine metabolisms and vitamin B5 and CoA biosynthesis: dihydropyrimidinase; energetic metabolism: arginine kinase; detoxification: glutathione-S-transferase (GST), stress: heat shock proteins (HSP70); structural constituent of eye lens:S-crystallin; and cytoskeleton: actin, actin-beta/gamma1 and beta actin. Theresults obtained allow defining characteristic“proteomes” of paralarvae depending on the diet; as well as the use of these proteins as new biomarkers to evaluate their nutritional stress.

Country
Spain
Keywords

Acuicultura, Centro Oceanográfico de Canarias

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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