Figure 2.
Plant tissue localization of Azospirillum brasilense 1224T harboring the plasmid pHRGFPGUS in the onion seedlings. The cells localized in the seedlings at zero, three, seven, and 28 days post-inoculation were observed using a stereomicroscope following GUS-staining. (a) Bulb (underground stem), (b) base of the root, (c) middle of the root, (d) tip of the root. Boxes show the enlarged region of the insets, and arrows indicate the localization of the cells. Scale bars: Left panels, 1 mm; right panels, 200 μm.