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. 2015 Jul 24;5:12477. doi: 10.1038/srep12477

Figure 5. Overexpressions of SAUR76-78 promote seedling growth in transgenic Arabidopsis plants.

Figure 5

(a) SAUR76-78 expression in SAUR-overexpressing lines by Northern analysis. The rRNA was stained as a loading control. WT: Col-0. (b) Identification of saur76 T-DNA insertion mutant. Solid black box represents the only exon and the position of T-DNA insertion is indicated by triangle. Thesaur76 is a knockout mutant. Expression of SAUR76 relative to Actin is measured by quantitative PCR. (c) Comparison of five-day-old light-grown seedlings and rosettes of 30-day-old light-grown plants for various genotypes. (d) Cotyledon length of seedlings in upper panel of (c). Bars indicate SD (n = 40). Rosette diameter of plants in lower panel of (c). Bars indicate SD (n = 20). (e) Scanning electron micrograph of leaf epidermal cells from 20-day-old plants and comparison of leaf epidermal cell area. RNAi1-49: an RNAi line of SAUR78. nP::SAUR76/saur76: saur76 complemented with SAUR76 genomic sequence driven by native promoter. Right panel: bars indicate SD (n ≥ 20). For (d), (e) and (f), “*” and “**” indicate significant difference compared with WT at P < 0.05 and P < 0.01, respectively.