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植物研究 ›› 2016, Vol. 36 ›› Issue (2): 167-176.doi: 10.7525/j.issn.1673-5102.2016.02.003

• 论文 • 上一篇    下一篇

4种蕨类植物的孢子繁殖研究

朱晓凤1,2;沈慧1*;金冬梅1;赵国华1,3;刘保东3;凌铁军2;严岳鸿1   

  1. 1.上海辰山植物园(中国科学院上海辰山植物科学研究中心),上海 201602;
    2.安徽农业大学省部共建茶树生物学与资源利用国家重点实验室,合肥 230036;
    3.哈尔滨师范大学黑龙江省普通高等学校植物生物学重点实验室,哈尔滨 150025
  • 出版日期:2016-03-15 发布日期:2016-05-20

Spore Propagation of Four Ferns

ZHU Xiao-Feng1,2;SHEN Hui1*;JIN Dong-Mei1;ZHAO Guo-Hua1,3LIU Bao-Dong3;LING Tie-Jun2;YAN Yue-Hong1   

  1. 1.Shanghai Chenshan Plant Science Research Center,Chinese Academy of Sciences,Shanghai 201602;
    2.State Key Laboratory of Tea Plant Biology and Utilization,Anhui Agricultural University,Hefei 230036;
    3.Key Laboratory of Plant Biology,Harbin Normal University,College of Heilongjiang Province,Harbin 150025
  • Online:2016-03-15 Published:2016-05-20

摘要: 蕨类植物的资源开发越来越受到重视,但目前的孢子繁殖技术还不够成熟,已成为其市场扩大的制约因素。本研究对4种有代表性的资源型蕨类植物乌毛蕨(Blechnum orientale)、荚果蕨(Matteuccia struthiopteris)、假鞭叶铁线蕨(Adiantum malesianum)和水蕨(Ceratopteris thalictroides)进行了孢子繁殖研究,详细观察并记录了繁殖过程中配子体发育各阶段出现的特征和时间。其中以水蕨的发育周期最短,从播种到形成幼孢子体约33天;假鞭叶铁线蕨发育周期最长,约73天;乌毛蕨和荚果蕨的发育周期介于二者之间。结合过去已发表的相关观察资料,对4种蕨类的孢子萌发、原叶体、性器官以及幼孢子体形成等四个生长关键点所出现时间的培养条件进行了分析,结果表明:(1)光照时间越长,孢子萌发天数越短;(2)光照强度越大,原叶体发育天数越长;(3)配子体发育速率在20~25℃范围内与温度无显著相关性。本研究可为进一步探究蕨类植物适宜的繁殖技术体系和开发蕨类资源提供指导。

关键词: 蕨类植物, 孢子繁殖, 资源开发, 环境因子

Abstract: The development of fern resources is attracting more attention in recent years, however, current spore reproductive technology is immature, and has become a bottleneck. We cultured the spores of four typical ferns, including Blechnum orientale, Matteuccia struthiopteris, Ceratopteris thalictroides and Adiantum malesianum, observed spore propagation characteristics and time of the gametophyte development at each stage. By compiling the reported data, we analyzed the culture conditions, such as light and temperature, in four key development stages, including spore germination, and the formation of prothalli, sexual organs, and juvenile sporophyte. Longer illumination time may promote spore germination. Higher light intensity may prolong the formation of prothallus. Growth rate and temperature had no correlation during gametophyte formation in 20-25℃. Our research is useful for establishing the system of fern propagation and may promote the exploration of fern resources.

Key words: pteridophyte, spore propagation, resource development, environmental factor