Microbial sensor devices for electrochemical assessment of the metabolism of fusaric acid in microbial cells

A reactor microbial sensor device and a membrane microbial sensor device are low-cost and convenient analytical tools, which are useful for assessment of constitutiveness and inducibility of enzyme systems for transport and initial metabolism of substrate in microbial cells. By means of these devices, it was shown for fusaric acid (5-butilpicolinic acid) and Bacillus subtilis cells that an inducible protein-transporter system without enzyme system of initial metabolism of fusaric acid exists in cells of Bacillus subtilis.