Isolation and Characterization of Plant Growth-Promoting Endophytic Bacteria Paenibacillus polymyxa SK1 from Lilium lancifolium

Figure 6

Qualitative analysis of siderophores on CAS blue agar plates. Siderophores in P. polymyxa SK1 were detected as a yellow/orange hallow surrounding the bacterial colonies (a). A closer look at the surrounding hallow (b).

(a)

(b)