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Epichloë festucae var. lolii endophyte infected Lolium perenne root exudate metabolites captured in negative ion mode. Note that the intensities displayed in (A) have been divided by 10 to facilitate display. Bar graphs show variation in the relative intensity of metabolites (means ± SEM). See Table A5 for (A) N13, (B) N18, (C) N43 and (D) N53 metabolite details. Numbers in parentheses denote the: (mass, retention time).
