悬铃木实生苗茎结构研究

Research on Stem Structure of the Seedling of Platanus Orientalis

研究悬铃木实生苗茎结构,实生苗茎髓部具薄壁组织,实生苗茎下端薄壁组织较少,次生木质部发达,而上端次生生长弱,薄壁组织发达.离析实生苗茎次生木质部,发现其细胞组成有木纤维、分隔木纤维和导管分子,导管分子穿孔板有单穿孔板和梯状穿孔板.

Studing the stem structure of the seedling of Platanus orientalis , the results revealed that the medulla of stem has parenchyma and the extremitas inferior of stem has less parenchyma, secondary xylem developed, but the extremitas superior of secondary growth is weak with developed parenchyma. Isolating the stem secondary xylem of the seedling, the results revealed that its cellular form have wood fiber, septate wood fiber and vessel element,there are two types of perforation plate,simple perforation plate and scalariform perforation plate.