VITAMINS 



179 



400 



10 12 14 16 



Days of incubation 



Fig. 35. Growth of Sclerotinia camelliae in 25 ml. of liquid glucose-casein hydrolysate 

 medium at 25°C. Note the nearly total deficiency for biotin and the partial deficiency 

 for inositol. Failure to grow in thiamine alone and in the absence of vitamins indicates 

 total deficiency for thiamine. 



6 12 18 24 



Days of incubation 



Fig. 36. Growth of Lambertella pruni in 25 ml. of liquid glucose-casein hydrolysate 

 medium containing various vitamins. Partial deficiencies for both thiamine and 

 biotin are evident, being greater for thiamine. Note that the addition of inositol 

 and pyridoxine to media containing thiamine and biotin depressed growth. 



