Fig. 1From: A prospectus of plant growth promoting endophytic bacterium from orchid (Vanda cristata)Quantification of IAA by Reverse-phase (RP) HPLC, the chromatograms (a) of the IAA standard 20 μL; 1 mg per mL (concentration) in comparison to those of endophytic bacteria PVL1; (b) The IAA (as indicated by arrows) was eluted with retention time of 10.2 min, indicated by arrow for standard and circle for PVL1 extractBack to article page