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. 2012 May 10;8(5):e1002674. doi: 10.1371/journal.pgen.1002674

Figure 5. HRB1 and PP7 interact to regulate the stomatal aperture.

Figure 5

(A) Semi-quantitative RT-PCR analysis shows the expression level of PP7 in Ws, hrb1, and PP7 RNAi lines in either a Ws or hrb1 background. (B) The stomatal aperture of 4-week-old Ws, hrb1, and PP7 RNAi lines in either an hrb1 (RNAi hrb1) or Ws (RNAi Ws) background in the dark or treated with 0.33 µmol/m2/s blue light supplemented with 25 µmol/m2/s red light for 2 hours. Data presented are means plus or minus standard errors (n = 50). Significance levels: P<0.01 between a and b; P<0.0001 between a and c; P<0.05 between b and c. (C) Stomatal aperture of 4-week-old Col, pp7, and 35S::HRB1:MYC in a Col (HRB1OE) or pp7 (HRB1OE pp7) background. Significance levels: P<0.005 between a and b; P<0.005 between a and c; P<0.0001 between b and c. Plants were in the dark or treated with 0.33 µmol/m2/s blue light supplemented with 25 µmol/m2/s red light for 2 hours. Data presented are means plus or minus standard errors (n = 50).