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. 2004 Jan;134(1):215–223. doi: 10.1104/pp.103.032607

Figure 4.

Figure 4.

Specificity of the hypobaria response. Transgenic plants containing Adh/GFP and Cor78/GFP promoter fusions confirmed the selectivity of the hypobaria and hypoxia responses and highlight the tissue specificity of the gene activations revealed by the array and RT-PCR analyses. The response of Adh/GFP was essentially identical in plants exposed to 10 kPa or 2% O2 with the most responsive tissues being the young leaves surrounding the meristem. Fully expanded leaves showed a much reduced response. In contrast, the response of Cor78/GFP was markedly different between plants exposed to 10 kPa or 2% O2. Cor78/GFP was strongly induced in the central stem regions at 10 kPa, but plants at 2% O2 showed essentially no response. Plants maintained at 101 kPa showed no induction of either Adh/GFP or Cor78/GFP.