How I get Vogesella indigofera to grow blue?

At the lab we've been culturing V. Indigofera (strain: NRRL B-3162), but we can't get it to produce indigoidine. We've tried growing it on TSA, PCA, and LB agar, incubating at 25° C. Even well...

01 January 2019 1,839 4 View