| 山明桐小孢子败育及与小孢子囊壁发育异常的关系 |
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| 引用本文： | 孙蒙祥；王灶安.山明桐小孢子败育及与小孢子囊壁发育异常的关系[J].武汉植物学研究,1991,9(1):16-20. |
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| 作者姓名： | 孙蒙祥；王灶安 |
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| 作者单位： | 华中农业大学植物教研室，华中农业大学植物教研室 武汉 430070，武汉 430070 |
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| 摘 要： | 作者研究了山明桐(Paulownia sp.)小孢子败育及小孢子囊壁异常发育的过程,并探讨了两者之间的关系。结果表明:小孢子败育发生在减数分裂至单核小孢子期间。在小孢子有丝分裂前小孢子已全部敗育拚辈惴⒂斐V饕硐衷诒3只疚唇到饣虬虢到庾刺敝脸墒旎ㄒ┦逼凇R┦夷诒谙赴┓只鎏踝丛龊裣赴凇P℃咦幽冶诜⒂械恼庑┮斐O窒蟮氖抵适瞧湔7⒂瘫恢型就V?而以幼态保持至花药最后干缩。观察表明小孢子囊壁发育异常不是小孢子败育的原因,而可能是其结果。
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| 关 键 词： | 山明桐 小孢子 败育 异常小孢子囊壁 |
A STUDY ON MICROSPORE ABORTION AND THE RELATION TO ABNORMAL WALL LAYERS IN PAULOWNIA SP. |
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| Sun Mengxiang,Wang Zaoan.A STUDY ON MICROSPORE ABORTION AND THE RELATION TO ABNORMAL WALL LAYERS IN PAULOWNIA SP.[J].Journal of Wuhan Botanical Research,1991,9(1):16-20. |
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| Authors: | Sun Mengxiang Wang Zaoan |
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| Institution: | Huazhong Agricultural University, Wuhan 430070 |
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| Abstract: | The process of microspore abortion and abnormal wall layer development are studied in this paper It is reavealed that microspore abortion aceurs between meiosis and non-vacuolate microspore stage. Before microspore mitosis all of them have been dried ant shrivelled. On the other hand, tapetums ramain undegenerrated or half degenerated and endotheciums are unable to develop fibrous thickenings at mature anther stage.The relationship between microspore abortion and abnormal wall layers is also studied It is considered that microspore abortion does not result from, but may result in abnormal development of wall layers. |
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| Keywords: | Microspore abortion Abnormal wall layers Paulownia sp |
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