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. 2018 Nov 20;8:17071. doi: 10.1038/s41598-018-34949-9

Figure 1.

Figure 1

AGROBEST promotes Agrobacterium cell growth and attachment to Col-0 and efr-1 seedlings. Arabidopsis Col-0 and efr-1 seedlings were infected with A. tumefaciens C58C1(pTiB6S3ΔT)H (OD600 = 0.02) harbouring pBISN1. (a) Number of Agrobacterium cells in the medium or associated with the seedlings (in planta) with different medium used (MS or AGROBEST) and 1–3 days of Agrobacterium infection. Data are mean ± SD from three biological replicates (~10 seedlings per well, three wells). Data were compared by a One-way ANOVA at the P < 0.05 level [F(11,24) = 211.63, P < 0.0001](medium), [F(11,24) = 86.39, P < 0.0001] (in planta). Different letters above the bars indicate statistically different groups. (b) Representative scanning electron microscopy images showing the attached Agrobacterium cells on the cotyledon surface (abaxial) of Col-0 or efr-1 seedlings with AGROBEST or MS medium after 2 days of Agrobacterium infection. An overview (800x magnifications) and a close-up view (3000x magnification) are provided for each condition. Similar results were obtained from at least two independent experiments with multiple seedlings.