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草业学报 ›› 2014, Vol. 23 ›› Issue (2): 235-242.DOI: 10.11686/cyxb20140228

• 研究论文 • 上一篇    下一篇

不同生境下陌上菜的形态解剖学比较

张欣欣1,刘玫1*,程薪宇1,史传奇1,茹剑1,孙阎2   

  1. 1.哈尔滨师范大学生命科学与技术学院 黑龙江省分子细胞遗传与遗传育种重点实验室,黑龙江 哈尔滨 150025;
    2.黑龙江大学农业资源与环境学院,黑龙江 哈尔滨 150080
  • 收稿日期:2013-10-18 出版日期:2014-02-25 发布日期:2014-04-20
  • 通讯作者: E-mail:hsd_liumei@163.com
  • 作者简介:张欣欣(1982-),女,黑龙江齐齐哈尔人,在读博士。E-mail:alanzhangxinxin@163.com
  • 基金资助:
    黑龙江省及哈尔滨师范大学科学技术创新团队基金(KJTD2011-2),黑龙江省高校重点实验室开放课题研究项目(ZK201202),哈尔滨师范大学博士科研创新项目(HSDBSCX2013-06)和国家自然科学基金项目(31200146)资助。

Comparative study of the morphological and anatomical features of Lindernia procumbens in different ecological environments (Linderniaceae)

ZHANG Xin-xin1, LIU Mei1, CHENG Xin-yu1, SHI Chuan-qi1, RU Jian1, SUN Yan2   

  1. 1.Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China;
    2.Institute of Agricultural Resources and Environment, Heilongjiang University, Harbin 150040, China
  • Received:2013-10-18 Online:2014-02-25 Published:2014-04-20

摘要: 本研究首次采用GMA切片等方法对不同生境下陌上菜的形态结构进行了深入的研究。结果显示,陌上菜种苗发育具有水生植物的特征:种子及种苗需浸水萌发及发育,具下胚轴毛,胚根发育迟缓。成株的营养器官兼具水生及陆生植物的结构特征:完全陆生的植株和湿生植株的气生部位具有较厚角质层,发达的机械组织及较发达的通气组织。完全水生的植株和湿生植株浸水部位的角质层和机械组织不发达,但通气组织非常发达。生殖器官:完全陆生和湿生的植株具有闭锁和开放2种类型的花,而完全水生的植株仅具闭锁花,从而保证了这一物种在不同生境下均能正常结实。此外,陌上菜具有特立中央胎座。本研究首次揭示了陌上菜在不同生境下种苗发育、营养器官及生殖器官结构的变化,完善了陌上菜的形态学,为进一步研究母草科的系统学提供了形态学依据。

Abstract: The morphology and anatomy of Lindernia procumbens were deeply studied using the GMA method for the first time. The results show the seedling development of the species has the characteristics of aquatic plants: the seed and seedling submerged in water could germinate and develop, the hypocotyl hairs occur on the collet, the radicle development is retardate. The vegetative organ of the mature plant of the species has the characteristics which occur in terrestrial plants and aquatic: the terrestrial plant and aerial parts of the hygrophilous plant have thick cuticule, developed mechanical tissues and aerenchymaes. However, the submerged plants and submerged parts of hygrophilous plants are with the undeveloped mechanical tissues and cuticule, very developed aerenchymaes. The reproductive organs: L. procumbens has two types of flowers, chasmogamous and cleistogamous. Both occur in the terrestrial and the hygrophilous plants, but the submerged plants only have cleistogamous flowers, which make the species could produce seeds normally. In addition, the species has a free central placenta. This study show the variation in shapes and structures (including seeding development, vegetative and reproductive organs of L. procumbens) in the different ecological environments for the first time, perfecting the morphological study and providing the morphological evidence for the systematic study of the family Linderniaceae.

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