Figure 5From: Heterologous hybridisation to a Pinus microarray: profiling of gene expression in Pinus radiata saplings exposed to ethephonComparison of outer stem anatomy between control (A) and 5 mg ethephon treatment (B). Both Phloem (Ph) and Traumatic xylem (Tx) appear abnormal and contain increased extractives. The extractives are concentrated in poorly lignified parenchymatous cells in the xylem. Cortex (Cx) and Cambium (Ca) are as indicated. The images are at the same scale. Scale bar = 1 mm.Back to article page