FIG.4.

Kinetics of IAA intermediate secretion by R. fascians strains D188 (♦) and D188-5 (□). Bacteria were grown in TRP-supplemented medium in the absence (A to E) or in the presence (F to J) of LG extract (LGe). (A and F) IPyA levels; (B and G) IAld levels; (C and H) ILA levels; (D and I) IEt levels; (E and J) TRP levels. IAA levels were measured in three independent experiments. Error bars represent the standard errors. The corresponding IAA data of these samples are presented in Fig. 2 and 3.