20个龙须草种质资源叶片解剖特征  

The comparison of leaf anatomical characters of 20 Eulaliopsis binata germplasm resources

作　　者：刘飞[1,2] 喻夜兰[2] 邹冬生[1] 朱育峰[2] 黄月飞[2] 

机构地区：[1]湖南农业大学生物科学技术学院,湖南长沙410128 [2]湖南农业大学东方科技学院,湖南长沙410128

出　　处：《草业科学》2016年第11期2259-2265,共7页Pratacultural Science

基　　金：国家"863"计划项目(2011AA100209);湖南省教育厅科学研究项目(2015YB681)

摘　　要：主要采用扫描电子显微镜技术,对收集的20个龙须草(Eulaliopsis binata)种质资源叶片进行电镜扫描,结果表明,不同种质资源叶片形态中的叶长、叶宽、叶面积,以及叶解剖结构中的叶片表皮厚度、叶片厚度、叶片气孔密度、叶片气孔长、叶片气孔宽、叶片纤维细胞直径、胞壁厚度、腔径、腔壁比等均呈现出显著或极显著差异,以优选造纸材料中重要指标壁腔比进行聚类分析,可将供试龙须草种质资源造纸性能分为最优、较好、较差和最差4类。试验结果可为中国南方丘陵区龙须草种质资源良种选育和开发利用研究提供依据。Scanning electron microscopy was carried out to analyze the leaves of 20 Eulaliopsis binata germplasm resources.The results showed that there were significant differences in leaf length,leaf width,leaf area,leaf epidermis,leaf thickness,leaf stomatal density,leaf stomatal length,leaf stomatal width,leaf cell diameter,cell wall thickness,cavity diameter,and cavity wall ratio in leaf anatomical structure.Based on the cluster analysis of the cavity wall ratio as the important indicator of preferred paper material,the papermaking performance of tested E.binatagermplasm resources will be categorized as the optimal,the good,the bad and the worst.The results can provide the basis for breeding and E.binatagermplasm resources exploitation research in hilly area of southern China.

关 键 词：龙须草 地理种 叶片解剖特征 造纸材料 壁腔比 

分 类 号：Q944.56[生物学—植物学]