526 



THE PATHOGENIC SLIME-FUNGI. 



young roots of newly germinated cabbage, turnips, etc. They 

 do this by penetrating the cell-wall, probably that of a hair 

 to begin with, and the malformation ensues. The myxamoebae 

 possess a fis^eUum and pseudopodia, so that they are fitted for 



Fig. 316. — Plasmodiophora bi-assicac. Effects on Turnip grown in Russia. 

 (After Worouin.) 



different modes of locomotion. When entrance into a host-cell 

 has been effected, a plasmodium is formed and growth proceeds 

 as just described. 



Wakker^ describes, an enlargement of the attacked cells 

 and an irregular growth of the roots, associated with a rudi- 



^ Pringsheim's Jahrbuch, 1892. 



