Effect of Mussel`s Gender and Size on a Stress Response Biomarker


Autoria(s): ZILBERBERG, Carla; SERENO, Dayane; LIMA, Gabriela; CUSTODIO, Marcio R.; LOBO-HAJDU, Gisele
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

20/10/2012

20/10/2012

2011

Resumo

In mussels, stress signals such as heat, osmotic shock and hypoxia lead to the activation of the phosphorylated p38 mitogen activated protein kinase (pp38-MAPK). This stress activated protein has been efficiently used as a biomarker to several natural and anthropogenic stresses. However, what has not been tested is whether differences in gender or size can affect the response of this biomarker. The present study tested whether there was variation in the expression of pp38-MAPK in mussels Perna perna of different gender and size classes when exposed to natural stress conditions, such as air exposure. The results show that gender does not affect the expression of pp38-MAPK. However, size does have an effect, where mussels smaller than 6.5 cm displayed significantly (p < 0.05) lower levels of pp38-MAPK when compared to those larger than 7 cm. Mussels are one of the most used bioindicator species and the use of biomarkers to determine the health status of an ecosystem has been greatly increasing over the years. The present study highlights the importance of using mussels of similar size classes when performing experiments using stress-related biomarkers.

`CNPq/Programas Ciencias do Mar Brazil/Germany`[59004/2005-0]

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Identificador

WATER AIR AND SOIL POLLUTION, v.217, n.1/Abr, p.317-320, 2011

0049-6979

http://producao.usp.br/handle/BDPI/27456

10.1007/s11270-010-0589-4

http://dx.doi.org/10.1007/s11270-010-0589-4

Idioma(s)

eng

Publicador

SPRINGER

Relação

Water Air and Soil Pollution

Direitos

restrictedAccess

Copyright SPRINGER

Palavras-Chave #Perna perna #Shell length #Male and female #pp38-MAPK #Hypoxia #Protein expression #MYTILUS-EDULIS L #GALLOPROVINCIALIS #TISSUES #AGE #Environmental Sciences #Meteorology & Atmospheric Sciences #Water Resources
Tipo

article

original article

publishedVersion