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茶藨子属次生木质部导管分子形态学研究

郑宝江 李国秀

郑宝江, 李国秀. 茶藨子属次生木质部导管分子形态学研究[J]. 北京林业大学学报, 2015, 37(11): 48-58. doi: 10.13332/j.1000-1522.20140111
引用本文: 郑宝江, 李国秀. 茶藨子属次生木质部导管分子形态学研究[J]. 北京林业大学学报, 2015, 37(11): 48-58. doi: 10.13332/j.1000-1522.20140111
ZHENG Bao-jiang, LI Guo-xiu.. Morphological observation of vessel elements in secondary xylem of Ribes[J]. Journal of Beijing Forestry University, 2015, 37(11): 48-58. doi: 10.13332/j.1000-1522.20140111
Citation: ZHENG Bao-jiang, LI Guo-xiu.. Morphological observation of vessel elements in secondary xylem of Ribes[J]. Journal of Beijing Forestry University, 2015, 37(11): 48-58. doi: 10.13332/j.1000-1522.20140111

茶藨子属次生木质部导管分子形态学研究

doi: 10.13332/j.1000-1522.20140111
基金项目: 

黑龙江省自然科学基金项目(C200843)。

详细信息
    作者简介:

    郑宝江,副教授。主要研究方向:种子植物分类学。Email:zbjnefu@126.com 地址:150040黑龙江省哈尔滨市香坊区和兴路26号东北林业大学生命科学学院。

Morphological observation of vessel elements in secondary xylem of Ribes

  • 摘要: 茶藨子属植物是经济价值较高的一个类群,但该属植物形态变异幅度大,拥有两性花和单性花的两大复杂类群,属下分类难度较大。本研究利用光学显微技术和扫描电镜技术,对茶藨子属7个亚属20种植物导管分子的形态结构进行了较系统的研究。结果显示: 1)茶藨子属植物导管分子均具孔纹导管类型,有一些种类兼具螺纹导管类型,该属导管分子均具尾部,尾部长短不一。 2)导管分子长度250~440 μm,直径15~30 μm,该属植物导管分子属于细小类型。 3)穿孔板类型为梯状穿孔板,且穿孔板上横隔数量在5.2~11.0之间,端壁倾斜角度较小,在13.33°~18.95°之间,且种属间变化不大;东北茶藨子、矮茶藨子、木里茶藨子、紫花茶藨子具有网—梯过渡穿孔板,长刺茶藨子、小果茶藨子、华茶藨子具梯—单过渡穿孔板。 4)香茶藨子、老铁山腺毛茶藨子与木里茶藨子个别导管分子具侧壁穿孔板。5)纹孔式样为互列式或兼有互列式和对列式,纹孔形状种间存在较大差异,有圆形、近圆形、菱形、条形以及线形。 6)导管分子内壁形态各异,多为较光滑的内壁,也有较粗糙的内壁,即导管分子内壁有大小不等的圆形点状突起物,或由大小不等的突起物构成网状突起。

     

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出版历程
  • 收稿日期:  2014-04-15
  • 刊出日期:  2015-11-30

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