摘要
利用光学显微镜对假冷蕨属植物叶表皮特征进行观察,并与亲缘关系较近的冷蕨属、蹄盖蕨属植物进行比较.结果显示:假冷蕨属和蹄盖蕨属植物上表皮细胞的垂周壁都有加厚,且多为波浪状;下表皮细胞的气孔密度和气孔器类型也很接近.结合分子系统学的相关结论,我们建议把假冷蕨属归并到蹄盖蕨属中.
The leaf epidermis of Pseudocystopteris is investigated under light microscopes and compared with Cytopteris and Athyrlum which have close kinship to it. The results show that the anticlinal walls of upper epidermis in Pseudocystopteris and Athyrium are a little thicker and the shape of them is wavilness; the density of stomata and the type of stomata apparatus on lower epidermis are similar. Combined with conclusion of molecular systematics, it is suggested that Pseudocystopteris should be a member of Athyrium.
出处
《河南师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2008年第2期99-102,共4页
Journal of Henan Normal University(Natural Science Edition)
基金
陕西省自然科学研究基金(2006C119)
陕西省教育厅项目(07JK211)
陕西理工学院科研基金(SLG0627)
关键词
假冷蕨属
叶表皮特征
气孔器
Pseudocystopteris characteristic of leaf epidermis
stomatal apparatus