国产胡桃科次生木质部导管分子的比较解剖及其系统位置的讨论  

Comparative anatomical studies on the vessel elements in the secondary xylem of Juglandaceae from China and discussion on their evolutionary position

作　　者：韩丽娟[1] 周春丽[1] 吴树明[1] 

机构地区：[1]长春师范学院生物系,长春130032

出　　处：《西北植物学报》2002年第6期1426-1431,T007,共7页Acta Botanica Boreali-Occidentalia Sinica

摘　　要：通过对国产胡桃科 6属 1 3种植物所做的次生木质部导管分子的长度、弦径、端壁斜度、穿孔板类型、管孔形状及其排列、导管密度及其在分类中作用的解剖学研究 ,证实了从导管分子来看黄杞属和青钱柳属是相当原始的属 ,而化香树属、山核桃属是最进化的属 ,并根据导管分子的解剖学特征探讨了胡桃科各属间的进化顺序。The vessel elements in the secondary xylem of 13 species in 6 genera of Juglandaceae from China were studied comparatively,including the length and tangential diameter of vessel elements,obliqueness of end walls,the type of perforation plates,the shape and the distribution of pores,vessel frequency and the value in variation,etc.This paper verified that Engelhardtia and Cyclocarya are among the most primitive genera. Platycarya and Carya are more evolutionary.The series of the six genera of Juglandaceae are also discussed in this paper.

关 键 词：胡桃科 次生木质部导管分子 比较解剖 系统位置 

分 类 号：Q944.55[生物学—植物学] Q949.735