Mineral salts pyridine broth is a selective medium for bacteria that can metabolize pyridine (which is an unusual carbon source that a select few types of bacteria can use). This medium is used to isolate bacteria belonging to the genus Arthrobacter among other bacteria genera.
References O'Loughlin EJ, Sims GK, Traina SJ (1999). "Biodegradation of 2-methyl, 2-ethyl, and 2-hydroxypyridine by an Arthrobacter sp isolated from subsurface sediment". Biodegradation. 10 (2): 93–104. doi:10.1023/A:1008309026751. PMID 10466198. S2CID 25495834.
