Subtropical Plant Science ›› 2010, Vol. 39 ›› Issue (01): 34-39.DOI: 10.3969/j.issn.1009-7791.2010.01.009

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Comparative Anatomy of Vegetative Organs of Dioscorea zingiberensis in Different Ploidies

ZHU Yan1, XU Zeng-lai1, WANG Qiong1, ZHAO Meng2   

  1. 1. Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu China;
    2. Shanxi Normal University, Linfen 041004, Shanxi China
  • Received:2009-09-28 Online:2010-03-10 Published:2010-03-10

不同倍性盾叶薯蓣营养器官解剖结构比较

朱艳1,徐增莱1,汪琼1,赵猛2   

  1. 1. 江苏省中国科学院植物研究所 南京中山植物园, 江苏 南京 210014;
    2. 山西师范大学, 山西 临汾 041004
  • 作者简介:朱艳(1986-),女,江苏东海人,硕士研究生,从事药用植物资源与解剖学研究。

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Abstract: To provide attestation for cultivation of good germplasm of Dioscorea zingiberensis,the anatomic structure of vegetative organs of three ploidies D. zingiberensis,diploid (2x=20),triploid (3x=30) and tetraploid (4x=40) were comparably studied by paraffin method.The results showed that the structural differences among three ploidies of D. zingiberensis were leaf thickness,palisade tissue thickness,P/S,P/L,VR and periderm thickness.The triploid D. zingiberensis had the largest palisade tissue thickness,P/S,P/L and VR,while the tetraploid had the largest leaf thickness and periderm thickness.The multiploid put up stronger predominance than diploid as a whole.

Key words: Dioscorea zingiberensis, ploidy, anatomic structure

摘要： 运用石蜡切片法对三个倍性盾叶薯蓣营养器官的解剖结构进行比较研究。结果表明,不同倍性盾叶薯蓣的结构差异主要表现在叶片厚度、栅栏组织厚度、栅栏组织厚度/海绵组织厚度(P/S)、栅栏组织厚度/叶片厚度(P/L)、茎维管束中导管所占比例(VR)以及根状茎周皮厚度,其中栅栏组织厚度、P/S、P/L和VR在三倍体植株中表现最高,叶片厚度和周皮厚度则是四倍体植株表现最高,多倍体植株的表现总体优于二倍体植株。

关键词: 盾叶薯蓣, 倍性, 解剖结构

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