Figure 4From: Interactions between ethylene and auxin are crucial to the control of grape (Vitis vinifera L.) berry ripeningTranscription of selected auxin biosynthesis and GH3 genes in response to Ethrel in the 2011 trial. The expression of TAR1-TAR4, YUC1, GH3-1 and GH3-2 in pre-veraison Shiraz berries from the 2011 trial was analysed by qRT-PCR at the indicated time points after treatment with a Control or Ethrel solution (see Figure 1). Control, dark grey bars; Ethrel, light grey bars. All data represent means ± SE (n = 3). Asterisks indicate significant differences of the mean values of Ethrel-treated samples from the mean values of Control samples as determined with Student’s t-test (*p < 0.05, **p < 0.01).Back to article page