1917] Mitra: Toxic and Antagonistic Effects of Salts on Wine Yeast 



95 



Table 11 — Antagonistic Effects Between CaCl 8 and NaCl 



CaCIo vs. 



No. NaCl M. Cone 48 his. 



A .00 x.00 2,356,000 



B .00 x.208 



C .001 x .18 226,000 



D .01 x.16 226,000 



E .1 x.12 226,000 



F .2 x.09 



G .3 x.06 



H .4 x.03 



I .5 x.01 



J .6 x.001 



K .7 x.00 



18 

 16 

 14 



00 



1 12 



■43 



CO 



l 10 



A 

 CaCl 2 



B 



D E F G H 



Concentration of salts 



K 

 NaCl 



Fig. 11. — Curves of yeast growth showing effects of NaCl on CaCL. The 

 ordinates represent the number of yeast cells in millions and the abscissae, the 

 concentration of salts in combination. The ordinate at A represents the 

 number of yeast cells in blank cultures. 



For comparison with other organisms the following cases are cited : 

 (a) Plants. — Osterhont"' with wheat found a distinct antagonism 

 between the two salts. He obtained a similar result with green algae 

 in which he used 100 c.c. NaCl and 10 c.c. CaCl, at the concentration 

 of 3/8M. Kearney and Cameron, 8 with leguminous plants, found that 

 a combination of the two salts increased the tolerance of the plants for 

 CaCl., three times. 



