Characteristics of Organic Acid Secretion Associated with the Interaction between Burkholderia multivorans WS-FJ9 and Poplar Root System

Figure 2

HPLC chromatogram of the strain WS-FJ9 fermentation broth and the poplar culture solution. (a) The strain WS-FJ9 fermentation broth; (b) the poplar culture solution; (A) oxalic acid; (B) gluconic acid; (C) shikimic acid; (D) lactic acid; ((E), (F), and (G)) unknown acid; (H) malonic acid.

(a)

(b)