Figure 2From: Ac/Ds-transposon activation tagging in poplar: a powerful tool for gene discoveryFollowing heat shock treatment, regenerative callus, leaves and stems were crushed into pieces as small as possible in a Waring blender. (A) The resulting "cell-pulp" was transferred to petridishes containing fresh regeneration medium and cultivated for up to 5 months at 25°C and continuous light in the growth chamber. (B) Regenerated shoots.Back to article page