Figure 5
From: Redundancy and metabolic function of the glutamine synthetase gene family in poplar
Cell-type distribution of poplar GS expression analyzed by in situ hybridization. Cross-sections (10 mm thick) of different poplar organs were subjected to in situ hybridization analysis using RNA probes. Leaves: PtGS2 (a, d) and PtGS1.1 (c) antisense; PtGS2 (b, e) and PtGS1.1 (f) sense. Stem: PtGS1.3 (g, h) antisense; PtGS1.3 (i), sense. Root: PtGS1.2 (j, k) antisense; PtGS1.2 (l) sense probe.