@article {3744, title = {Is the deep-sea crab Chaceon affinis able to induce a thermal stress response?}, journal = {Comp Biochem Physiol A Mol Integr Physiol}, volume = {181}, year = {2015}, month = {2015 Mar}, pages = {54-61}, abstract = {

Fluctuations in the stress level of an organism are expressed in behavioural and molecular changes that can affect its ecology and survival. Our knowledge of thermal adaptations in deep-sea organisms is very limited, and this study investigates the critical thermal maximum (CTmax) and the heat-shock response (HSR) in the deep-sea crab Chaceon affinis commonly found in waters of the North East Atlantic. A mild but significant HSR in C. affinis was noted and one of the lowest CTmax known amongst Crustacea was revealed (27.5 {\textdegree}C at 0.1 MPa; 28.5 {\textdegree}C at 10 MPa). The thermal sensitivity of this species appears to be reduced at in situ pressure (10 MPa), given the slightly higher CTmax and the significant 3-fold induction of stress genes hsp70 form 1 and hsp70 form 2. Although C. affinis deep-sea habitat is characterized by overall low temperature this species appears to have retained its ability to induce a HSR. This capability may be linked with C. affinis{\textquoteright} occasional exploitation of warmer and thermally instable hydrothermal vent fields, where it has been found foraging for food.

}, issn = {1531-4332}, doi = {10.1016/j.cbpa.2014.11.015}, author = {Mestre, N{\'e}lia C and Cottin, Delphine and Bettencourt, Raul and Cola{\c c}o, Ana and Correia, S{\'e}rgio P C and Bruce Shillito and Thatje, Sven and Juliette Ravaux} }