140 



Marine Microbiology 



THIAMINE 



c^" 



(tfQ>-, — •":' 



NIACI 



CgT>. 



2,L 



o 

 o 



COBALAMIN 



o 



/ 



GROWTH- P 85 



c/ 



6 



^ 



-la O 

 I 



X 

 2 I- 



O 

 (T 

 O 



- I 



6 12 18 24 6 12 18 24- 



TIME AFTER INOCULATION - HRS 



Fig. 1. Production and excretion of B vitamins by culture P85 obtained 

 from the sea near La Parguera, Puerto Rico. Note that thiamine and 

 cobalamins are not excreted during growth, but can be released from the 



cells bv heating. 



