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该试验以7种枸杞属植物的叶片为材料,测量与统计其叶片面积大小和解剖结构,进行试验数据对比分析,旨在得出7种枸杞叶片解剖结构的差异。试验结果表明:7种枸杞属植物具有较一致的结构,表皮均具有角质层,主脉为外韧维管束,栅栏组织排列整齐,大部分具有2~3层栅栏组织;但内部各组织所占比例与分布上存在较大差异,朝鲜枸杞的叶片最大且最薄,上、下表皮角质层厚度及叶片紧密度均最小,栅栏组织细胞两层且排列比较疏松,海绵组织细胞排列散乱、不规则且细胞间隙较大,叶脉维管组织口径较小,疏导功能较弱;黑枸杞(Lycium brevipes)的叶片最小且最厚,对应的角质层上、下表皮角质膜厚度、叶片紧密度等也最大,维管组织较发达,含较多的贮水细胞(粘液细胞和含晶细胞)。综合分析结果表明:在7种枸杞中,黑枸杞有最紧凑的叶片结构,可能具有较强的抗旱能力;朝鲜枸杞枸杞叶片结构最松散,其抗旱能力可能较差。
In this experiment, the leaves of seven Lycium species were used as materials, the size and anatomical structure of the leaves were measured and counted, and the comparative analysis of the experimental data was carried out to find the differences in the anatomical structure of seven Lycium barbarum leaves. The results showed that seven species of Lycium had the same structure with the stratum corneum in the epidermis and the vascular bundles in the main veins. The palisade tissues were neatly arranged and most of them had 2 ~ 3 layers of palisade tissue. However, There was a big difference in the proportion and distribution of Lycium barbarum, the largest and thinnest in the leaves of Lycium barbarum, the smallest of the stratum corneum and the tightness of the leaf epidermis in the upper and lower epidermis, the loosely arranged cells in the two layers of palisade tissue cells, With larger cell gap, smaller diameter of veins and less dredging function. Lycium brevipes had the smallest and thickest leaves with the highest cuticle thickness and the lowest leaf epidermal thickness in the stratum corneum , Vascular tissue more developed, containing more water cells (mucus cells and containing cells). The results of comprehensive analysis showed that the black wolfberry has the most compact leaf structure in seven kinds of Chinese wolfberry, which may have stronger drought resistance ability. The wolfberry leaves of North Korea wolfberry have the most loose structure and the drought resistance ability may be poor.