THE TRANSLOCATION OF PROTOPLASM 



137 



In the experiments just described and in others made later, 

 it was observed that an intrahyphal hypha, as it grows out from 

 a septum, pushes the pore plug aside and occasionally carries it to 



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some distance from the septum where it was formed. One may 

 suppose that, when a cell on one side of a septum is killed or dies, 

 the pore is first blocked by the instantaneous formation of a plug of 

 coagulum and, very soon afterwards, is still more effectively sealed 

 by the formation of cell-wall substance across it. 



