HSP90 levels in HSP90-RNAi and HSP90-TDNA lines.

**significant at p<0.01 *significant at p<0.05 (t-test) Protein for quantitative Western blots was extracted from plants grown under ambient conditions. The HSP90 antibody used should recognize all four cytosolic isoforms. Values are normalized such that the average of the control lines is 100; HSP90-RNAi and HSP90-TDNA lines are normalized separately. RNA for RT-PCR was extracted from plants heat shocked at 37°C for two hours. RT-PCR primers recognize only HSP90-1. n.d., not determined.