ANHYDRIOBIOSIS 3 1 



carotenoid would be useful as a means of clarifying the mecha- 

 nism of the oxygen effect. 



Hestrin : Is the oxygen-death a temperature-dependent reac- 

 tion? By the way, if the specific target is inside the cell and the 

 salt in question is outside, how does the interaction come about 

 in the solid state? 



Kohn: In regard to your first question: when the dried 

 ampoule is opened at — 80' and kept at that temperature the 

 lethal effect does not occur. As to your second question, there 

 could be a steric effect involving crystalline water and protein. 

 The substrate acted upon may be a part of the electron transport 

 system of the cell. 



