18 



16- 



14- 



12- 



< 

 < 



fV 



ro 



H^O 



h^ 



IAN 

 I 1 



2 ^ V 



No Ehrlich Color 



ho 



20 



18 



- I6H 



X 



z 

 w 

 -J \M 



-i 



4 

 Z 



iZ 12- 



B 



lAA 



^ 



m 



H^O 



18 



16- 



14. 



12- 



(V 



^ 



IAN 



<o 



H^O 



Rf 



Fig. 3. Chromatography of acidic ether fractions of Ochromonas malhamensis in 

 ammoniacal isopropanol. A. Ochromonas 1 (= 0.8 g. dry wt.) B. Ochromonas 2 

 (=: 1.0 g. dry wt.) first eluate after chromatography in water. C. Ochromonas 2 

 second eUiate after chromatography in water. Controls of lAA are 1 zn 10"" g/ml; 

 2 = 10-'; 3 = 10-^ 4 = 10-^ 



[31] 



