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Egyptian Journal of Biological Pest Control
Fig. 2 | Egyptian Journal of Biological Pest Control

Fig. 2

From: Biological control of the tomato wilt caused by Clavibacter michiganensis subsp. michiganensis using formulated plant growth-promoting bacteria

Fig. 2

Detection of siderophores, indole acetic acid and HCN production by certain bioagents. Wherase Bs = Bacillus subtilis, Ba = Bacillus amyloliquefaciens, Pf = Pseudomonas fluorescens, and Pa = Pseudomonas aeruginosa. a Production of siderophores with yellow halo produced around the bacterial growth. b No color change (−), no HCN production; brownish coloration (+), weak production; brownish to orange (++), moderate production; orange to reddish brown (+++), strong production. c Record of the developed pink color means indole acetic acid production

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