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Scientia Silvae Sinicae ›› 2010, Vol. 46 ›› Issue (8): 51-55.doi: 10.11707/j.1001-7488.20100808

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Comparative Anatomy of Vessel Elements in Staminate and PistillatePlants of Fraxinus pennsylvanica

Guo Xuemin1;Gao Zhongming2;Liu Zhenlin3;Liang Lisong4;Wang Guixi4   

  1. 1.The Research Institute of Wild Plant Resources Application，Hebei Normal University of Science ＆ Technology Qinhuangdao 066600;2.Department of Mathematics and Physics，Hebei Normal University of Science & Technology Qinhuangdao 066600;3.Department of Horticulture and Landscape Architecture，Hebei Normal University of Science & Technology Qinhuangdao 066600;4.The Research Institute of Forestry，The Chinese Academy of Forestry Beijing 100091
  • Received:2009-07-07 Revised:2009-11-19 Online:2010-08-25 Published:2010-08-25

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Abstract:

The characteristics of vessel elements of secondary xylem in shoots of staminate and pistillate plants of Fraxinus pennsylvanica were studied by isolation method and micrography. The results indicated that there were various patterns of vessel elements in F. pennsylvanica. The vessel elements in shoots of the staminate plants were longer and wider with scalariform-reticulated and simple perforation than that of the pistillate plants. These characteristics provided a powerful guarantee for vigorous water need during the growth season of the staminate plants. The knowledge of these differences of vessel elements between the staminate and the pistillate plants laid both theoretical and practical foundation for further research on sex identification of this tree species.

Key words: Fraxinus pennsylvanica, dioecism, vessel element, anatomic structure