Developmental Process of the Vascular Bundles and Phloem Fiber Wall in Fargesia yuanjiangensis
The morphological characteristics of vascular bundles and metaxylem vessels were observed in Fargesia yuanjiangensis culms,and the wall thickness and layers of phloem fibers were also analyzed,so as to summarize their developmental characteristics and to establish the fiber wall deposition pattern.The results showed that the length and length/width ratio of F.yuanjiangensis vascular bundles increased firstly with age and then decreased significantly,while the diameter of metaxylem vessels increased with age as well as the width of the vascular bundles.There were six fiber types in the mature F.yuanjiangensis culms,among which type Ⅱ accounted for the highest proportion.
Fargesia yuanjiangensisvascular bundlefiber cellfiber cell typedevelopmental process