Figure 7

Effect of PGNO-treated DI water and 0.5 mM phosphate buffer on plant stress response. (a) Average dry weight of individual plant grown under the treatment with differently diluted PGNO water and phosphate buffer for 4 weeks and then under no water condition for additional 2 weeks. Total dry weight of 21–48 plants per treatment was measured, and the average dry weight of individual plant was calculated by dividing total dry weight by the number of plants. These were repeated 4 times and averaged again. Four replicate measurements were used for statistical analysis. **p < 0.01. (b) Relative level of PR10 transcripts in 4 week-old spinach plants treated with differently diluted PGNO water and phosphate buffer, compared to control (plants grown with non-treated DI water and 0.5 mM phosphate buffer). Each value represents the average level of transcript ± standard deviation from 3 replicate independent experiments. Three replicate measurements were used for statistical analysis.