人心果次生木质部导管分子的观察研究

 运用细胞图象分析系统及显微照相的方法, 观察研究人心果次生木质部导管分子。结果发现,人心果次生木质部导管分子中存在着许多不同的样式, 多数导管分子具尾; 导管分子穿孔板存在着两种类型: 1. 两端均为一个单穿孔板; 2. 一端为一个单穿孔板另一端为两个单穿孔板及过渡类型; 3%的导管分子具有内含物; 管间纹孔式为互列纹孔式, 导管射线间纹孔式为混合型纹孔与横列刻痕状纹孔以及穿孔。

Studies on the Vessel Elements of Secondary Xylem in Manilkara zapota

The vessel elements of secondary xylem in Manilkara zapota were observed by bio-microscope image analysis system and micrography.There were various patterns of vessel elements in M.zapota and most of the vessel elements had tail.Perforation plates could be divided into two types:1.Both ends of the vessel element were simple perforation plate;2.One end had simple perforation,the other had two simple perforations.And there were a series of transitional patterns between the two types.Three percent of vessel elements of secondary xylem in the plant had inclusions.Intervascular pitting was alternate pitting.There were mixed type pitting,gash-like pitting and perforation between vessel elements and ray cells.