Fig. 3From: Identification of genes regulated by histone acetylation during root development in Populus trichocarpa Morphology of roots after growth on medium supplemented with 0, 1 and 2.5 μM TSA, respectively. a-c, cross sections of root tips; d-f, cross sections in the middle region of the roots. a and d, roots after growth on medium without TSA supplemented for two weeks; b and e, roots after growth on medium containing 1 μM TSA; c and f, roots after growth on medium containing 2.5 μM TSABack to article page