Anatomical differences of Ulmus pumila seedlings under different water irrigation and light intensity

This experiment was conducted to investigate the effect of interaction between water and light on growth and cell structure in Ulmus pumila L. One-year-old seedlings grown in a greenhouse at the University of Seoul were used in this study. Ulmus pumila seedlings were subjected to three light treatments, full sunlight (HI), 30% of full sunlight (MI), 10% of full sunlight (LI) and under well watered (WW) and water stressed (WS) conditions. Following reduction of irradiance, thinner leaf thickness could be examined by light microscopy. In HI leaf thickness increased due to larger palisade and spongy parenchyma cells. This study suggests that leaf tissue morphological characteristics was affected by light but not water conditions.