大叶铁线莲大小孢子发生及雌雄配子体发育

杨艺,王娜,王奎玲,刘庆华,李伟,郭霄,马颖杰,刘庆超

Megasporogenesis, Microsporogenesis and Development of Male and Female Gametophytes of Clematis heracleifolia

Yi Yang,Na Wang,Kuiling Wang,Qinghua Liu,Wei Li,Xiao Guo,Yingjie Ma,Qingchao Liu

表3 大叶铁线莲两性花中配子体发育与花芽形态的关系

Table 3 Relationship between gametophytes development and flower bud morphology in bisexual flower of Clematis heracleifolia

Bud length (cm) Stamen length (cm) Pistil length (cm) Male gametophyte Female gametophyte 0.16-0.36 0.10-0.14 0.05-0.11 Microsporocyte, meiosis, microspore - 0.36-0.50 0.14-0.34 0.10-0.18 Microspore monokaryotic side stage, mitosis Archesporium, megasporocyte 0.50-0.88 0.34-0.48 0.18-0.21 Mitosis, 2-celled pollen Megasporocyte, uninucleate embryo sac 0.88-0.95 0.48-0.52 0.21-0.30 2-celled pollen Uninucleate embryo sac, 2-nucleate or 4-nucleate embryo sac 0.95-1.42 0.52-0.60 0.30-0.42 2-celled pollen 4-nucleate or 8-nucleate embryo sac, mature embryo sac