| 蛇足石杉的形态学及不同光照处理下气孔特征的研究 |
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| 引用本文： | 黎有有,唐源江,李菁,周毅,黄衡宇.蛇足石杉的形态学及不同光照处理下气孔特征的研究[J].植物研究,2009,29(4):411-416. |
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| 作者姓名： | 黎有有 唐源江 李菁 周毅 黄衡宇 |
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| 作者单位： | (1.吉首大学植物资源保护与利用湖南省高校重点实验室，吉首416000) ;(2.中国科学院华南植物园，广州510650) |
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| 基金项目： | 湖南省科学技术厅科技计划(2007NK3075);;广东省科技计划资助项目(2007B020704003) |
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| 摘 要： | 对蛇足石杉的形态学特征进行了重新描述，并对不同光照处理下蛇足石杉叶片的气孔特征进行比较。结果表明：在一定范围内，随着环境中光照强度的增加，气孔长度和宽度、单个气孔面积、气孔密度及气孔总面积都呈增加的趋势。当光照强度超过某一阈值时其气孔指数和气孔密度仍呈增加的趋势，但气孔长度、宽度和单个气孔面积呈变小趋势。小而密的气孔是其适应旱生环境的表现，表明其具有一定的生态适应能力，但进行人工栽培时应避免光照过强。
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| 关 键 词： | 蛇足石杉 形态特征 光照强度 气孔特征 |
Morphology of Huperzia serrata and Its Stomata Characteristics under Different Light Treatments |
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| Institution: | (1.Key Laboratory of Plant Resources Conservation and Utilization(Jishou University),College of Hunan Province,Jishou416000) (2.South China Botanical Garden,The Chinese Academy of Sciences,Guangzhou510650) |
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| Abstract: | The morphological characteristics of Huperzia serrata(Thunb.) Trev. were described, and a few different characteristics were found. In addition, the relationship between the stomata characteristics and the illumination intensity was analyzed. The results showed the length, width and area of single stomata, the stomata density and the total stomata area increased when the illumination intensity kept rising within a certain limit. However, all of these stomata parameters decreased when the illumination intensity surpassed a certain value except the stomata density and the stomata index. The stomata of small sizes and high densities were the characteristics fitted for the arid conditions, indicting that this plant was ecological adaptive, but when it was under cultivation high illumination intensity should be avoided. |
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| Keywords: | Huperzia serrata(Thunb ) Trev morphological characteristics illumination intensity stomata characteristic |
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