| 红树莓(Rubus idaeus L.)雌雄配子体发育的研究 |
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| 引用本文： | 桂明珠,李桂琴,谭余.红树莓(Rubus idaeus L.)雌雄配子体发育的研究[J].东北农业大学学报,1993(2). |
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| 作者姓名： | 桂明珠 李桂琴 谭余 |
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| 作者单位： | 东北农学院植物教研室，东北农学院植物教研室，东北农学院植物教研室 哈尔滨 150030，哈尔滨 150030，哈尔滨 150030 |
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| 摘 要： | 红树莓雄蕊多数,排成3轮、同一轮花药发育基本同步,各轮间发育不同步,自外向内顺序发育。最早的造孢细胞和小孢子母细胞于5月下旬产生。小孢子母细胞的胞质分裂为同时型,四分体呈四面体型,成熟花粉为2—细胞。雌蕊亦多数离生,整齐排列在膨大的花托上。每一子房内有2枚胚珠,但后期仅1枚正常发育。胚珠倒生、单珠被、厚珠心。胚囊发育属蓼型,但大孢子母细胞、功能大孢子常有异常现象。
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| 关 键 词： | 红树莓(Rubus idaeus L.) 雌配子体 雄配子体 小孢子母细胞 大孢子 |
STUDIES ON DEVELOPMENT OF MALE AND FEMALE GAMETOPHYTES OF RED RASPBERRY(Rubus idaeus L.) |
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| Gui Mingzhu Li Guiqin.STUDIES ON DEVELOPMENT OF MALE AND FEMALE GAMETOPHYTES OF RED RASPBERRY(Rubus idaeus L.)[J].Journal of Northeast Agricultural University,1993(2). |
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| Authors: | Gui Mingzhu Li Guiqin |
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| Abstract: | Most stamina of red raspberry(Rubus idaeus L.)arrange in three layers.The anthers in
the same layer develop simultaneously but there is difference in the development of the an-
thers in the three layers,i.e.they develop from outside to inside in sequence.The sponogenous
cells and microspore mother cells are produced in the last ten days of May.Cytokinesis in the
microspore mother cells occurs simutancously and the microspore tetrads are tetrahedral.The
mature pollen grains are 2-celled.
Most pistils are schizogenelic and arrange on the large receptacles regularly.In every
ovary there are 2 ovules,only one of which develops normally.The ovule is anatropous,
unitegmic and crassinucellar.The development of embryo sac is of Polygonum type,but the
megaspore mother cells and the function megaspores often appear abnormal. |
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| Keywords: | red raspherry (Rubus idaeus L ) female gametophyte male gametophyte microspore mother cell megaspore |
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