广西师范大学学报（自然科学版） ›› 2012, Vol. 30 ›› Issue (3): 263-268.

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爬树蕨属2种植物配子体发育及其系统学意义

王任翔1,2, 刘灵1,2, 梁士楚1,2, 易锦言1,2   

  1. 1.广西师范大学生命科学学院,广西桂林541004;
    2.珍稀濒危动植物生态与环境保护省部共建教育部重点实验室,广西桂林541004
  • 收稿日期:2012-05-30 出版日期:2012-09-20 发布日期:2018-12-04
  • 通讯作者: 王任翔(1964—),男,湖南资兴人,广西师范大学教授,博士。E-mail:wrx05@126.com
  • 作者简介:王任翔,湖南资兴人,教授,博士,硕士研究生导师,中国蕨类植物学会理事。
  • 基金资助:
    国家自然科学基金资助项目(31060030);广西自然科学基金资助项目(2011GXNSFA018089);广西教育厅项目(201010LX070);珍稀濒危动植物生态与环境保护省部共建教育部重点实验室研究基金资助项目(桂科能1001Z017);广西壮族自治区学位授权点学科建设专项经费资助项目

Development and Taxonomic Significance of Gametophytes of 2 Species in Arthropteris J.Sm.

WANG Ren-xiang1,2, LIU Ling1,2, LIANG Shi-chu1,2, YI Jin-yan1,2   

  1. 1.College of Life Sciences,Guangxi Normal University,GuilinGuangxi 541004,China;
    2.Key Laboratory of Ecology of Rare and Endangered Species and Environmental ProtectionGuangxi Normal University,Ministry of Education,Guilin Guangxi 541004,China
  • Received:2012-05-30 Online:2012-09-20 Published:2018-12-04

摘要： 采用原生境土和Knop′s营养液对爬树蕨Arthropteris pallisotii(Desv.)Alston和桂南爬树蕨Arthropteris repens(Brack)C.Chr.的孢子进行培养,观察其孢子萌发和配子体发育过程。2种孢子均为黄褐色,两面体型,单裂缝,极面观椭圆形,赤道面观为肾形,周壁褶皱。接种8 d后孢子开始萌发(书带蕨型),播种14 d左右发育为3～8个细胞的丝状体,27 d左右发育为片状体,60 d左右形成幼原叶体(三叉蕨型)。幼原叶体不对称,成熟的原叶体呈对称心形。原叶体边缘及背腹面都具单细胞乳头状的毛状体。播种75 d左右开始出现性器官,精子器近圆球形,由3个细胞构成,成熟颈卵器颈部由4～5层细胞构成。爬树蕨和桂南爬树蕨的配子体发育特征表现出较为进化的特点。

关键词: 爬树蕨属, 孢子萌发, 配子体发育, 系统学意义

Abstract: The spores of Arthropteris pallisotii and Arthropteris repens were respectively cultured in habitat of soil and knop's.The mature spores were yellow-brown,bilateral type,monolete,kidney-shape in equatorial view and elliptical in polar view with a loose wrinkled perines.The spore germianation pattern of both species was of the Vittaria-type.It occured about 8 days after inoculation.The gametophyte development was of the Aspidium-type.Filamentous growth appeared within 14 days after inoculation and formed a filament of 3～8 cells.Prothallial plates growth appeared within 27 days after inoculation.The young prothallia were not symmetry temporarily,but the mature prothallia were cordate type with one type hair.Antheridia were appeared on prothallus 75 dayrs after inoculation,pelletlike,consisting of three cells.The neck of mature archegonium was composed of4～5 layers of cells high.The characteristics of spore germination and gametophyte development of A.pallisotii and A.repens were relatively advanced.

Key words: Arthropteris J.Sm., spore germination, gametophyte development, taxonomic significance

中图分类号: 

  • Q949.36
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