SCHIZOSACCHAROMYCES. 



Both on the vegetative cells and on the asci of the spores 

 fine lines may sometimes be observed, which form the limit 

 between the older, thicker parts of the cell-wall and the newly- 

 formed, thinner parts. The latter appear after the partition- 

 walls, which now form the terminal walls of the new cells, 

 have divided, or after fusion, through the ensuing growth of 

 the ascus. 



On wort no film has been observed ; only a slender yeast-ring. 



Wort-gelatine is rapidly liquefied by S. octosporus. Beijer- 

 inck found that in the case of the asporogenous cells the for- 



'o' 





fig. 84. Saceharomyces octoitpwus. Development of the ascus (after Schionning), 



Fig. 85.Saccharoinycett octogporus. Young growth in wort-gelatine (after Schiouning). 



mation of trypsin is gradually reduced, while the formation 

 of acid is greater than in the sporogenous cells. 



This species ferments maltose, laevulpse, and dextrose, but 

 it does not invert saccharose. According to Fischer, an 

 aqueous extract of the dried pulverised growth decomposes 

 maltose, but does not exert any influence upon saccharose. 

 He states that it contains raffinase, and is, therefore, capable 

 of fermenting raffinose. 



