Editing Corynebacterium (section)

=== Culture ===
Corynebacteria grow slowly, even on enriched media. In nutritional requirements, all need [[biotin]] to grow. Some strains also need [[thiamine]] and [[4-aminobenzoic acid|PABA]].<ref name=collins /> Some of the ''Corynebacterium'' species with sequenced genomes have between 2.5 and 3.0 million base pairs. The bacteria grow in [[Löffler's serum|Loeffler's medium]], [[blood agar]], and [[trypticase soy agar]] (TSA). They form small, grayish colonies with a granular appearance, mostly translucent, but with opaque centers, convex, with continuous borders.<ref name=glaucum /> The color tends to be yellowish-white in Loeffler's medium. In TSA, they can form grey colonies with black centers and dentated borders that either resemble flowers (''C. gravis''), continuous borders (''C. mitis''), or a mix between the two forms (''C. intermedium'').{{citation needed|date=February 2023}}