EFFECTS OF SPERMINE ON THE RIBONUCLEOPROTEIN PARTICLES 253 



Hunter: I was just thinking that if manganese had a greater affinity than 

 magnesium, that would help to get the spermine out. 



SiEKEViTZ : Actually I should say that we only looked for magnesium in these 

 particles. There might be manganese there or even calcium. Dr. Ts'O has found 

 that in pea seedling particles there was five times as much magnesium as calcium. 



Hunter: Even if manganese were not present physiologically, it still might be 

 useful for getting spermine out. 



SiEKEViTZ : Yes. 



