大叶铁线莲大小孢子发生及雌雄配子体发育
杨艺1,王娜1,王奎玲1,刘庆华1,李伟1,郭霄1,马颖杰2,刘庆超1,*(
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Megasporogenesis, Microsporogenesis and Development of Male and Female Gametophytes of Clematis heracleifolia
Yi Yang1,Na Wang1,Kuiling Wang1,Qinghua Liu1,Wei Li1,Xiao Guo1,Yingjie Ma2,Qingchao Liu1,*()
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图3. 大叶铁线莲雄花雄配子体发育
(A) 单核居中期; (B) 单核靠边期; (C1) 有丝分裂前期(箭头所示); (C2) 有丝分裂中期(箭头所示, 下)和后期(箭头所示, 上); (C3) 有丝分裂后期(箭头所示); (C4) 有丝分裂末期, 形成营养细胞和生殖细胞(箭头所示); (D) 花药开裂, 散粉, 2-细胞花粉粒。(A), (B), (C1), (D) Bars=50 μm; (C2)-(C4) Bars=20 μm
Figure 3. Microgametophyte development in staminate flower of Clematis heracleifolia
(A) Microspore at monokaryotic stage; (B) Microspore at monokaryotic side stage; (C1) Microspore at prophase (arrow); (C2) Microspore at metaphase (arrow, down) and anaphase (arrow, up); (C3) Microspore at anaphase (arrow); (C4) Microspore at telophase, vegetative cell and germ cell are formed (arrow); (D) The dehiscent anther, and the 2-celled mature pollen grains. (A), (B), (C1), (D) Bars=50 μm; (C2)-(C4) Bars=20 μm
