CAJ | 학술논문

本研究采用 GMA 切片、扫描电镜及叶片透明法，深入研究了东北豆科山羊豆族4属25种植物叶的形态结构。选取与叶相关的23个形态性状，参考8个非叶的特征，进行了聚类分析与主成分分析。结果表明，相似系数在0．58处时，4属植物被分为3组，黄耆属与米口袋属为一组，棘豆属和甘草属各自为一组。小叶是否具腺体、叶柄横切面形状及叶柄细胞是否具单宁等特征具有较高的绝对权重值，可以作为区分刺果甘草与甘草和其他山羊豆族植物的依据。托叶质地、托叶与叶柄联合程度及小叶叶缘是否反卷等特征可作为棘豆属的识别特征。托叶形状在属下种间具一定的分类学价值。本研究为山羊豆族植物分类学及豆科植物系统学研究提供了叶形态学依据。
본연구채용 GMA 절편、소묘전경급협편투명법，심입연구료동북두과산양두족4속25충식물협적형태결구。선취여협상관적23개형태성상，삼고8개비협적특정，진행료취류분석여주성분분석。결과표명，상사계수재0．58처시，4속식물피분위3조，황기속여미구대속위일조，극두속화감초속각자위일조。소협시부구선체、협병횡절면형상급협병세포시부구단저등특정구유교고적절대권중치，가이작위구분자과감초여감초화기타산양두족식물적의거。탁협질지、탁협여협병연합정도급소협협연시부반권등특정가작위극두속적식별특정。탁협형상재속하충간구일정적분류학개치。본연구위산양두족식물분류학급두과식물계통학연구제공료협형태학의거。
The leaf morphological structure of 25 species,representing 4 genera from the tribe Galegeae,north-eastern China,was determined using GMA,SEM and leaf transparency methods.Twenty-three morphological features related to leaf and 8 non-leaf characters were selected for cluster analysis and principal component anal-ysis.Three groups were identified;Astragalus and Gueldenstaedtia were placed in one group,and Glycyrrhi-za and Oxytropis in separate groups.Features including the presence of glands,petiole shape and tannin con-tent of petiole cells were able to distinguish Glycyrrhiza pallidiflora and G.uralensis from other Galegeae species.Stipule texture,connectivity between stipule and petiole and leaflet margin features are all useful iden-tification characteristics of Oxytropis .Stipule shape is valuable for interspecific classification.This study pro-vided the leaf morphological evidences for taxonomy of the Galegeae and Leguminosae systematics.