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. 2008 Feb;3(2):113–115. doi: 10.4161/psb.3.2.4972

Figure 1.

Figure 1

Mycorrhizal and NPA-treated short roots from Pinus sylvestris. Dichotomous mycorrhizal short root tips surrounded by Suillus bovinus mycelium (A). NPA-treated short roots (B). Short roots extending from pieces of lateral roots in control (C) and NPA-treated material (D). In situ hybridisation of Pinus sylvestris SCARECROW (PsySCR) in control (E) and NPA-treated short roots (F). In these longitudinal sections PsySCR transcripts are seen in the short endodermis and at tip between stele and poorly developed root cap. The diameter is often larger in NPA-treated than in control roots although no statistically significant difference was obtained in the measurements (G) for root diameter (RD) or stele diameter (SD). Instead, the length of the endodermis (EL) and root cap (CL) are significantly shorter in NPA-treated than in control roots as seen also in (E) and (F). White and black columns represent control and NPA-treated short roots, respectively. (G) is from ref. 15, Suppl. Material 3. Scale bar in (A) 1 mm and in (E) 100 µm.