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|本期目录/Table of Contents|

八种青藓科植物蒴齿及孢子的超微形态研究

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2011年02期
页码:
188-193
栏目:
系统与演化植物学
出版日期:
2011-04-21

文章信息/Info

Title:
Morphological studies on the spores and peristomal teeth of eight moss species in Brachytheciaceae
作者:
何红燕 13 熊源新 3* 石 磊 2 贾鹏 2
1.山西省襄垣一中, 山西 长治 046000; 2.贵州大学 林学院, 贵阳 550025; 3.贵州大学 生命科学学院, 贵阳 550025
Author(s):
HE Hong-Yan 13 XIONG Yuan -Xin 3* SHI Lei 2 JIA Peng 2
1. No.1 Middle School of Xiangyuan , Changzhi 046000, China; 2. Institute of Forestry ,Guizhou University , Guiyang 550025, China; 3. College of Life Sciences, Guizhou University , Guiyang 550025, China
关键词:
藓类孢子 蒴齿 纹饰 演化关系
Keywords:
spores of mosses peristomal teeth Ormentation evolution relationship
分类号:
-
DOI:
-
文献标识码:
A
摘要:
利用扫描电镜观察了八种青藓科植物孢子及蒴齿的形态,青藓科植物的孢子纹饰多以芽孢状和瘤状突起为主,孢子的大小、外壁纹饰的差异显示了不同种之间的遗传分化及系统演化。青藓属外齿层腹面中部分为四种类型:光滑无疣、颗粒状疣、短刺状小疣、棒状和芽孢状疣,外齿层中上部的特征属与属之间存在差异,该研究可为分类鉴定提供一定的依据。
Abstract:
Spores and peristomal teeth morphology of eight species in the moss family Brachytheciaceae was observed by scanning electron microscope(SEM). The surface ornamentations were spore and tuberculat mainly. It showed heredity differentiation and evolution relationship among the different species from spores size and exine ornamentation. The ventral central of exostomes in Brachythecium can be divided into four types: smooth; irregularly tuberculate; short puncture; tuberculate and spore. Differentiation existed among the different genera in the middle and upper of exostome,which provided some basis for taxonomic identification.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2011-04-22