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. 2019 Nov 7;14(2):569–583. doi: 10.1038/s41396-019-0537-2

Fig. 3.

Fig. 3

Bioactivity is caused by ammonia. a Ammonia quantification from LB agar extracts exposed to Streptomyces VCs (left). Ammonia standard curve from LB agar extract (right). b Growth of E. coli ASD19 (black) and B. subtilis (gray) under different concentrations of ammonia