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| 高寒草地四种嵩草属植物叶表皮的微形态 | |
| 引用本文： | 张晓庆,强科斌,郭敏,龙瑞军,赵连春.高寒草地四种嵩草属植物叶表皮的微形态[J].甘肃农业大学学报,2006,41(6):89-93. |
| 作者姓名： | 张晓庆 强科斌 郭敏 龙瑞军 赵连春 |
| 作者单位： | 1. 甘肃农业大学草业学院,甘肃,兰州,730070 2. 甘肃农业大学生命科学技术学院,甘肃,兰州,730070 3. 甘肃农业大学草业学院,甘肃,兰州,730070;中国科学院西北高原生物研究所,青海,西宁,810008 |
| 基金项目： | 中国科学院"百人计划" , 教育部高等学校优秀青年教师教学科研奖励计划 , 国家自然科学基金 |
| 摘 要： | 利用光学显微镜和扫描电子显微镜对4种嵩草属(Kobresia)植物叶片的上、下表皮细胞特征进行了观察研究,并在光学显微镜下测量了上、下表皮细胞的大小、气孔器大小、气孔间距、气孔密度和气孔指数.结果表明:4种嵩草属植物叶有许多共同的特征,如表皮细胞具波浪状垂周壁、气孔器均分布在远轴面上,气孔器类型均为平列型等.4种嵩草属植物叶片两侧叶缘上均有刺毛,且线叶嵩草叶缘上的刺毛尖端有倒刺.气孔密度与气孔指数在种间差异显著(除高山嵩草和线叶嵩草之间无差异),可以作为嵩草属植物分类的辅助依据. |
| 关 键 词： | 嵩草属 叶表皮 气孔器 |
| 文章编号： | 1003-4315(2006)06-0089-05 |
| 修稿时间： | 2006年3月14日 |
Leaf epidermal micro-morphology of four species in the genus Kobresia from alpine grassland |
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| ZHANG Xiao-qing,QIANG Ke-bin,GUO Min,LONG Rui-jun,ZHAO Lian-chun.Leaf epidermal micro-morphology of four species in the genus Kobresia from alpine grassland[J].Journal of Gansu Agricultural University,2006,41(6):89-93. | |
| Authors: | ZHANG Xiao-qing QIANG Ke-bin GUO Min LONG Rui-jun ZHAO Lian-chun |
| Abstract: | Both the upper and lower epidermal features of the leaves of 4 species in the genus Kobresia Willd were observed under optical microscope and scanning electron microscope.The size of the upper and lower epidermal cells,stomatal size,stomatal distance,stomatal density and stomatal index were measured and counted under optical microscope.The results showed that the four species displayed many common features in patterns of anticlinal wall of both epidermis,limited distribution of stomatal apparatus only in the lower epidermis,paracytic type etc.Prickles presented at leaf margins of the 4 species,moreover with short barbs in K.capillifolia.The stomatal density,stomatal indexes had significant interspecies differences and possessed certain assistant classification value of species. |
| Keywords: | KobresiaWilld leaf epidermis stomatal apparatus |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |