| 青海不同海拔高度下3种绿绒蒿表皮毛密度的变化 |
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| 引用本文： | 李苗苗,唐道城,曾萱.青海不同海拔高度下3种绿绒蒿表皮毛密度的变化[J].青海大学学报,2008,26(6). |
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| 作者姓名： | 李苗苗 唐道城 曾萱 |
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| 作者单位： | 青海大学高原花卉研究中心 |
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| 基金项目： | 青海省科技厅重点项目 |
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| 摘 要： | 以青海不同海拔高度下的全缘叶绿绒蒿、多刺绿绒蒿、总状绿绒蒿的鲜叶为材料,观测叶片表皮毛的分布特征。结果表明:①随着海拔的升高,3种绿绒蒿的表皮毛密度逐渐增加。②不同海拔高度下,3种绿绒蒿的表皮毛密度均表现出上表皮毛大于下表皮,且随着海拔高度的升高,上、下表皮毛密度的比值逐渐增大。③在相近海拔,全缘叶绿绒蒿的上、下表皮毛密度最大,与其他两种绿绒蒿差异极显著,其次是总状绿绒蒿。④在相近海拔,阳坡绿绒蒿的表皮毛密度明显高于阴坡。
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| 关 键 词： | 青海 海拔高度 绿绒蒿 表皮毛密度 |
Variation of leaf epidermal trichome density of three meconopsis species with altitude change in Qinghai |
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| LI Miao-miao,TANG Dao-cheng,ZENG Xuan.Variation of leaf epidermal trichome density of three meconopsis species with altitude change in Qinghai[J].Journal of Qinghai University(Natural Science),2008,26(6). |
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| Authors: | LI Miao-miao TANG Dao-cheng ZENG Xuan |
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| Institution: | LI Miao-miao; TANG Dao-cheng; ZENG Xuan(Plateau Flower Research Center of Qinghai University; Xining 810016; Qinghai); |
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| Abstract: | Leaf epidermal triehome traits of three meconopsis species,M.integrifolia,M.horridula and M.racemosa,native to Qinghai-Tibet Plateau were investigated.The results indicate that:(1) leaf epidermal trichome densities of the three species increase with elevation;(2)the trichome density on upper epidermis is thicker than that on lower epidermis;(3) M.lntegrlfolla has the thickest epidermal trichome among the three species growth in similar altitude;(4)species growth in south facing slope have high epidermal tri... |
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| Keywords: | Qinghal elevation Meconopsis epidermal trichome density |
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