Figure 2. Fresh weight and chlorophyll content of chlorate treated Arabidopsis plants. The fresh weights and chlorophyll content of the Arabidopsis Col-0, Atchl1–5 and Atchl1–5 plants transformed with constructs and treated with chlorate, as in Figure 1, were measured. Asterisks mark values that are significantly different at the 1% level from the Atchl1–5 value, using the paired t-test. (A) The fresh weights of Atchl1–5 plants transformed with the Mtnip-1 gene were indistinguishable from Atchl1–5 plants, and the fresh weights of two of the Atchl1–5 lines transformed with Mtnip-3 were indistinguishable from those of Col-0 or Atchl1–5 transformed with either MtNIP/LATD and AtNRT1.1 genes. The third Atchl1–5/Mtnip-3 line has similar, but not identical, fresh weight to the other two. (B) The chlorophyll contents of Atchl1–5 plants transformed with the Mtnip-1 gene were similar to Atchl1–5 plants, and the chlorophyll contents of two of the Atchl1–5 lines transformed with Mtnip-3 were similar to those of Col-0 and to chlorophyll contents of Atchl1–5 transformed with either MtNIP/LATD and AtNRT1.1 genes. The third Atchl1–5/Mtnip-3 line had intermediate chlorophyll content.
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