552 



5. QUmONES 



Fig. 5-8. Inhibition of bacterial growth by ^^-Q in meat-peptone medium. (From 

 Hoffmann-Ostenhof and Fellner-Feldegg, 1949 b.) 



0.0001 0.001 0.01 



Fig. 5-9. Inhibition of the growth of Pseudomonas aeruginosa in 

 synthetic medium by various quinones and naphthoquinones: 

 (1) p-benzoquinone; (2) chloranil; (3) toluquinone; (4) thymo- 

 quinone; (5) 1,2-naphthoquinone; (6) 1,4-naphthoquinone; (7) 

 lawsone; (8) phthiocol; (9) 2-Cl-3-OH-l,4-NQ; (10) menadione. 

 (From Hoffmann-Ostenhof and Fellner-Feldegg, 1949 b). 



