Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/114290
Título: Effect of temperature and food concentration on the relationship between growth and AARS activity in Paracartia grani nauplii
Autores/as: Herrera, Inma 
Yebra, Lidia
Hernández León, Santiago Manuel 
Clasificación UNESCO: 240119 Zoología marina
230202 Aminoácidos
230205 Biosíntesis
Palabras clave: AARS
Food concentration
Growth
Paracartia grani
Protein metabolism, et al.
Fecha de publicación: 2012
Publicación seriada: Journal of Experimental Marine Biology and Ecology 
Resumen: The in situ activity of the enzymes aminoacyl-tRNA synthetases (AARS) and the growth rates of naupliar stages of the planktonic marine copepod Paracartia grani were measured in the laboratory under different temperature and food concentrations. We assessed the effect of these parameters on growth and protein synthesis rates of P. grani nauplii. Growth and protein synthesis rates of P. grani nauplii depended on temperature and food concentration. AARS activity is valid as an index of somatic growth for P. grani nauplii when growth is not limited by food availability. However, the relationship between protein-specific AARS activity and nauplii growth varied according to food availability levels. The degradation of proteins during starvation and/or the ß-oxidation of fatty acids affected the relationship between specific AARS activity and growth rates. The results presented here add to previous studies showing that the AARS activity is a useful tool for estimating somatic growth of this and other key copepod species. Nevertheless, further research is required to elucidate the validity of AARS activity as a universal proxy for growth.
URI: http://hdl.handle.net/10553/114290
ISSN: 0022-0981
DOI: 10.1016/j.jembe.2012.02.019
Fuente: Journal of Experimental Marine Biology and Ecology [ISSN 0022-0981], v. 416-417, p. 101-109, (April 2012)
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