Fig. 1. (A) Autoradiographs of ³⁵S-labeled proteins following incubation to 13°C and 30°C (heat-shocked) for 2.5 h and 4 h of recovery (and labeling) at 13°C in gill tissues of 13°C-acclimated T. funebralis. Clusters of heat-induced proteins are further described in Fig. 2. (B) Heat-induced activation of synthesis of proteins between 70–90 kDa in 13°C-acclimated T. funebralis. The constitutively expressed protein spot Hsp71.8 is always found to the left of the vertical line. ¹⁴C molecular mass markers are shown on the side of the gels (A).