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›› 1994, Vol. 30 ›› Issue (1): 64-68.

• 论文 • 上一篇    下一篇

阔叶树材导管分子螺纹加厚的电镜观察与探讨

张立非 姜笑梅 周崟   

  1. 中国林业科学研究院木材工业研究所,北京100091
  • 收稿日期:1992-10-08 修回日期:1900-01-01 出版日期:1994-01-25 发布日期:1994-01-25

A STUDY ON SPIRAL THICKENINGS IN THE VESSEL ELEMENTS OF SOME CHINESE HARDWOOD

Zhang Lifei,Jiang Xiaomei,Zhou Yin   

  1. Institute of Wood Industry CAF Beijing 100091
  • Received:1992-10-08 Revised:1900-01-01 Online:1994-01-25 Published:1994-01-25

摘要: 从国产177科阔叶树(隶45科132属)木材构造的电镜观察中筛选出51种(隶20科44属)木材的导管、维管管胞内壁上具有螺纹加厚,对所观察到的螺纹加厚进行了比较,在国外学者将螺纹加厚分为三种类型的基础上,近一步分为四种类型:1.分枝型;2.不分枝型;3.涡流型;4.附物型。其中分枝型和不分枝型又分为Ⅰ型和Ⅱ型。同时对螺纹加厚的形成和分布进行了讨论。

关键词: 螺纹加厚, 螺纹加厚类型, 导管, 阔叶树材

Abstract: Spiral thickenings in the yessels elements of 51 species belonging to 44 genera and 20 families chinese hardwoods were investigated by SEM and TEM.They were found in the vascular or vasicentric.Four types or spiral thickening were proposed,namely,brached,nonbrached,swirled and vestured;their forms,functions,distributions and origins were described in detail.Occurrence or non-occurrence and distribution of the spiral thickenings must be considered as a useful identification of hardwood.

Key words: Spiral thickening, Vessel, Chinese hardwood