| 外来入侵有害植物刺萼龙葵(Solanum rostratum Dunal.)幼苗的形态学特征初步研究 |
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| 引用本文： | 张延菊,曲波,刘更林,白艳伟,董文轩.外来入侵有害植物刺萼龙葵(Solanum rostratum Dunal.)幼苗的形态学特征初步研究[J].种子,2010,29(3). |
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| 作者姓名： | 张延菊 曲波 刘更林 白艳伟 董文轩 |
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| 作者单位： | 沈阳农业大学,辽宁,沈阳,1101612 |
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| 摘 要： | 采用石蜡切片法和徒手切片法对刺萼龙葵的幼苗进行研究,结果发现:刺萼龙葵子叶长1.2～1.8 cm,宽0.2～0.6cm,厚度180～270μm,栅栏组织1层,厚55～65μm,海绵组织相对很发达,占叶肉的很大比例,厚155μ165μm,气孔器在上、下表皮都有分布,气孔指数平均为46.1;真叶长2～2.5 cm,宽1.5～2 cm,厚度220～340μm,栅栏组织1层,厚108～114μm,海绵组织细胞4～6层,厚111～118μm;上下表皮均具表皮毛.皮层中的细胞具有叶绿体;雏管束为双韧型.刺萼龙葵根的表皮细胞1层,排列紧密;皮层细胞均为薄壁细胞,凯氏带就分布于此层上.
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| 关 键 词： | 刺萼龙葵 幼苗 形态 |
A Preliminary Study on Morphological Characteristics of Exotic Invasions Plants Solanum rostratum Dun. Seedlings |
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| ZHANG Yan-ju,Qu Bo,LIU Geng-lin,BAI Yan-wei,DONG Wen-xuan.A Preliminary Study on Morphological Characteristics of Exotic Invasions Plants Solanum rostratum Dun. Seedlings[J].Seed,2010,29(3). |
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| Authors: | ZHANG Yan-ju Qu Bo LIU Geng-lin BAI Yan-wei DONG Wen-xuan |
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| Institution: | ZHANG Yan-ju,Qu Bo,LIU Geng-lin,BAI Yan-wei,DONG Wen-xuan( Shenyang Agricultural University,Shenyang,Liaoning province,110161) |
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| Abstract: | Seedlings morphology of Solanum rostratum Dunal. were observed using paraffin section technique and hand-held slicing method. The results indicated that:stomata frequency length of Solanum rostratum was 1. 2 - 1. 8 cm , width was 0. 2 -0. 6 cm, and thickness was 180 -270μm. There was 1 layer of palisade cells, and it' s thickness was 155 - 165μm. And there was considerately developed spongy tissue, it was a large proportion of mesophyll and the thickness was 155 - 165μm. Stomata was on both the upper and lower epidermical layers. The average index of stomata was 46. 1. Leaves length of Solanum rostratum was 2 - 2. 5 cm, width was 1. 5 -2 cm, and thickness was 220 - 340μm, 1 layer of palisade cells thickness was 108 - 114μm, spongy tissue cells had 4 to 6 layers, and the thickness were 111 -118μm. Both upper and lower epidermis had epidermal hain hair. There was chloroplas in the dermis cell, and vascular bundle was double-phloema. There was 1 layer root epidermal cells closely collocated. Ermis was composed of paremchyma cells, and there was casparian strip on it. |
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| Keywords: | Solanum rostratum Dunal seedling morphology |
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