. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 354 BERTIL HILLE AND ROGER MILKMAN minutes the original 23° equilibrium ratios are nearly restored. The actual amount of material remaining at A, B, or C will be reduced if some D has formed at the high temperature. Any D existing on return to 23° will be converted to C' in 10 minutes. These properties of the model explain the phenomena of transient and lasting rapid temperature adaptation which have been described earlier (Milkman, 1961, 1962). Figure 5 shows the response to 37 minutes of ° after the indicated pretreatm


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 354 BERTIL HILLE AND ROGER MILKMAN minutes the original 23° equilibrium ratios are nearly restored. The actual amount of material remaining at A, B, or C will be reduced if some D has formed at the high temperature. Any D existing on return to 23° will be converted to C' in 10 minutes. These properties of the model explain the phenomena of transient and lasting rapid temperature adaptation which have been described earlier (Milkman, 1961, 1962). Figure 5 shows the response to 37 minutes of ° after the indicated pretreatments and an interval at 23°. The 5-minute interval used to demonstrate transient rapid temperature adaptation (open circles) was sufficient to bring ap- proximately half the B and half the D to the protected states C and C'. As the major factor in leading to predictability in this experiment is the increased A —> B 10 sec 25 30 35 40 45 Minutes at ° 30 90 sec. 4 min. 50 55 A -* B -* D -*• E -* F -* G B ' B ' 23' 23' 23° FIGURE 6. Transient rapid temperature adaptation. Dosage-response at ° following pretreatments at ° with a 5-minute interval at 23°. As A is converted to B, the 23° interval diverts more B to a protected state. The protection is manifested as a change in both intercept and slope. Unpublished data. reaction, we take the agreement of the data (open circles) with the theory (curves) over an ° range to confirm our choice of kAs and QIAB- The long interval used to demonstrate lasting rapid temperature adaptation (solid circles) was sufficient completely to protect D as C' and to reverse the formation of B and the protected state C by re-establishing the 23° equilibrium ratios. The agreement between data and theory over 8° confirms the choice of kBD and QIBD- A second kind of experi- ment showing that transient rapid temperature adaptation leads to the predicted lowering of the ° dosage-response in slope as well as


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology