1923] 



KLOTZ — NITROGEN METABOLISM IN FUNGI 



343 



TABLE VIII (Continued) 



a 



© 



5? * 



L- © 



£|3 



fc 



KNO, 

 No. 6 



m 



Cm 







3 



4 



5 



6 



8 



9 



12 



18 



38 





5 

 5 

 2 

 5 

 2 

 5 

 1 

 5 

 5 

 1 



4.0 

 4.1 



4.8 

 5.5 

 5.7 

 5.8 



7.0 



7.1 



7.8 

 7.8 



i a 



K I 



® o 

 ► to 







 30 

 53 

 271 

 326 

 632 

 759 

 613 

 485 

 422 



c 



to 



o 



© 



Q 



2367 

 2295 

 2230 

 1654 

 1554 

 413 

 28 





 





 

 



2.2 



7.97 

 7.97 



fc 



fc 



K 



• 



cS 



• 





M 



o 



o 



K 



2 

 o 



















121.8 



121.8 



111.5 



111.5 







104.7 



104.7 







87.63 



87.63 



1.13 





87.6 



85.4 





« 



96.73 



88.76 



1.26 





89.9 



81.93 



1.28 





o 







At this point in the growth of the fungi, since the carbo- 

 hydrate carbon supply has been exhausted, the organisms must 

 draw upon the peptone and probably upon their own substance 

 for both C and N to continue their metabolic processes, especially 



25*Si>7Q9io 



C. 



15 h I? 



»: 



Fig. 3. H-ion change of media. Sphaeropsis malorurn. 



respiration. With the disappearance of the sugar there is a 

 relatively rapid increase in the NH 4 .N of the medium. At least 

 2 factors may enter into an explanation of this. The proportion 

 of N to the non-nitrogenous complex of the neotone is greater 



