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花叶开唇兰(兰科)大小孢子发生和雌雄配子体发育
引用本文:张振珏,陈裕,林坤瑞.花叶开唇兰(兰科)大小孢子发生和雌雄配子体发育[J].热带亚热带植物学报,1996,4(2):14-17.
作者姓名:张振珏  陈裕  林坤瑞
作者单位:福建省亚热带植物研究所
摘    要:花叶开唇兰的胚珠倒生,双珠被,薄珠心.雌配子体发育属蓼型,成熟胚囊7细胞.大小孢子发生过程中壁上都有胼胝质出现.小孢子四分体为四面体形,左右对称形,交叉形,T形,它们聚集成花粉小块.花粉散出时为2细胞型.药室壁4层,绒毡层底分泌型.

关 键 词:花叶开唇兰  大孢子  小孢子  雌配子体  雄配子体

MEGA- AND MICROSPOROGENESIS AND DEVELOPMENT OF FEMALE AND MALE GAMETOPHYTES IN ANOECTOCHILUS ROXBURGHII (ORCHIDACEAE)
Zhang Zhenjue,Chen Yu,Lin Kunrui.MEGA- AND MICROSPOROGENESIS AND DEVELOPMENT OF FEMALE AND MALE GAMETOPHYTES IN ANOECTOCHILUS ROXBURGHII (ORCHIDACEAE)[J].Journal of Tropical and Subtropical Botany,1996,4(2):14-17.
Authors:Zhang Zhenjue  Chen Yu  Lin Kunrui
Abstract:Sporogenesis and the development of male and female gametophytes inAnoectochilus roxburghii are studied. The mature ovules are anatropous, bitegminous andtenuinucellatae. The development of the female gametophyte is of polygonum type. Matureembryo sac has 7 cells. In the development of mega- and microsporogenesis, calloseappears. The microspore tetrads are tetrahedral isobilateral, decussate, T-shaped and remainin massulae. At shedding stage the pollen grains are 2-celled. The anther wall consists offour-layers with secretory tapetum.
Keywords:Anoectochilus roxburghii  Megaspore  Microspore  Female gametophyte  Male gametophyte  
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