Journal article
Physiological response of the cold-seep mussel Bathymodiolus childressi to acutely elevated temperature
Marine biology, Vol.149(6), pp.1397-1402
09/2006
Handle:
https://hdl.handle.net/2376/115409
Abstract
It is predicted that deep-sea animals adapted to thermally stable conditions should be highly sensitive to temperature change and should not have inducible heat-shock responses. This premise was tested with the cold-seep mussel Bathymodiolus childressi Gustafson, 1998 from 750 m depth in the Gulf of Mexico at a site known as Brine Pool NR-1 (27°43.4157N, 91°16.756W). Mussels were collected during February 2003. Site temperature, measured in different months between 1995 and 2005, ranged between 6.5 and 7.2°C. Although Brine Pool NR-1 is stenothermal, hydrogen sulfide, oxygen, and salinity vary over temporal and spatial scales. In laboratory experiments, B. childressi survived increases up to approximately 20°C above ambient temperature for 6 h before suffering greater than 50% mortality. Although a high thermal tolerance was observed, B. childressi did not express an inducible 70 kDa heat-shock protein. However, high constitutive levels of hsp70 were present in B. childressi suggesting a necessity to remediate protein damage from stressors other than elevated temperature; these constitutive proteins probably confer an indirect thermal tolerance.
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Details
- Title
- Physiological response of the cold-seep mussel Bathymodiolus childressi to acutely elevated temperature
- Creators
- Michael Berger - Whiteley Center Friday Harbor Laboratories 620 University Road Friday Harbor WA 98250 USACraig Young - Oregon Institute of Marine Biology University of Oregon Charleston OR 97420 USA
- Publication Details
- Marine biology, Vol.149(6), pp.1397-1402
- Academic Unit
- Environment, School of the (CAS)
- Publisher
- Springer-Verlag; Berlin/Heidelberg
- Identifiers
- 99900548052401842
- Language
- English
- Resource Type
- Journal article