摘要
[目的]比较黄刺玫等8种野生观赏树木的叶片解剖结构及抗逆性特点。[方法]采用半薄切片法研究8种野生观赏树木叶的解剖结构，并运用隶属函数法分析其形态学测量指标。[结果]8种树木的叶均属异面叶，由表皮、叶肉及叶脉3部分组成。表皮除接骨木外，都含有部分染色较深的异细胞，红柄白鹃梅具有近圆形和长条状2种形态的表皮细胞，仅楤木的表皮上具有多细胞表皮毛。叶肉栅栏组织中，黄刺玫、美蔷薇、红柄白鹃梅、水榆花楸的栅栏组织为2层，元宝枫为2～3层，接骨木、青榨槭、楤木为1层。叶主脉的上下两侧都含有厚角组织，其中元宝槭主脉具有维管束鞘，楤木的维管束周围有腔隙。[结论]综合分析认为黄刺玫、接骨木、美蔷薇、水榆花楸的抗逆性较强，红柄白鹃梅、元宝枫、青榨槭、楤木抗逆性中等。
[Objective ] To compare and analyze the anatomical structure and stress resistance of leaves of eight kinds of wild ornamental trees.[ Method] Semi-thin sections method was used to study the anatomical structure, and morphological measurements were analyzed by membership function method.[ Result] The leaves of eight kinds of wild plants belonged to bifacial leaf, which were composed of epidermis, mesophyll and leaf veins.Except Sambucus williamsii Hance, epidermal cells of eight kinds of wild plants contained some idioblast which stained deeper.There were suborbicular and long strips two forms of epidermal cells in Aralia chinensis L.;There were multicellular trichomes in Aralia chinensis L.The palisade tissue of Rosa xanthina Lind., Rosa bella Rehd.et Wils., Exochorda giraldii Hesse., and Sorbus alnifolia （ Sieb.et Zucc.） K.Koch were composed of 2-layer cells, and Acer truncatum Bunge 2-3 layer cells, other three plants 1-layer cells.The collenchyma were founded in upper and lower sides of the main veins.The main vein of Acer truncatum Bunge had bundle sheath, and there were lacuna around vascular bundle of Aralia chinensis L.[ Conculsion] The stress resistance of Rosa xanthina Lind., Sambucus williamsii Hance, Rosa bella Rehd.et Wils.and Sorbus alnifolia （ Sieb.et Zucc.） K.Koch are stronger, and the others have medium resistance.
出处
《安徽农业科学》
CAS
2016年第29期3-6,共4页
Journal of Anhui Agricultural Sciences
基金
山西省科技攻关项目(20130311018-5)
运城学院博士启动基金项目(YQ-2014020)
关键词
野生观赏树木
叶
解剖结构
抗逆性
Wild ornamental trees
Leaf
Anatomical structure
Stress resistance
