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Expression of GdDODA activity in Escherichia coli cells grown in agar solid medium supplemented with L‐DOPA.
A. Control plate without IPTG.
B. Yellow halos formed around the bacterial colonies in the presence of L‐DOPA 7.6 mM indicate the formation and excretion of betalain‐related compounds. A single image contains both conditions and was taken in the same shot. Standard 60 mm Petri dishes were used.
