| 三色堇(Viola tricolor L.var.hortensis DC.)花蜜腺的亚显微结构 |
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| 引用本文： | 沈敏健,季玲妹.三色堇(Viola tricolor L.var.hortensis DC.)花蜜腺的亚显微结构[J].华东师范大学学报(自然科学版),1991(1). |
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| 作者姓名： | 沈敏健 季玲妹 |
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| 作者单位： | 华东师大学报编辑部生物学系
(沈敏健)，华东师大学报编辑部生物学系(季玲妹) |
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| 摘 要： | 本文用透射和扫描电镜对三色堇花不同发育时期蜜腺进行了研究,了解到该植物花蜜中糖份主要来源于蜜腺分泌组织自身的光合产物;内质网参与了前蜜的加工和运输;质膜的啜入和反啜入作用是分泌组织细胞间前蜜传递的主要方式;蜜最后通过表皮细胞质膜的分子渗透作用而排放出体外;表皮细胞向外的指状突起是蜜汁分泌的主要部位.
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| 关 键 词： | 三色堇 花蜜腺 亚显微结构 |
Ultrastructure of Secretory Cells of the Floral Nectary of Viola Tricolor Var.Hortlnsis |
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| SHEN MINJIAN, JI LINGMEI.Ultrastructure of Secretory Cells of the Floral Nectary of Viola Tricolor Var.Hortlnsis[J].Journal of East China Normal University(Natural Science),1991(1). |
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| Authors: | SHEN MINJIAN JI LINGMEI |
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| Institution: | Department of Biology |
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| Abstract: | Ultrastructure of secretory cells of the floral nectary of Viola tricolor hortensis at various development stages was investigated with scanning electron microscopy and transmitting electron microscopy.It was found that the sugars of nectar are mainly synthesized by the secretory tissue itself, exocytosis and oinocytosis are the main ways by which the pre-nectar transports among the secretory cells, the nectar is eliminated from the epidermal cells by molecular processes at the plasmolemma and the main region of the elimination of nectar is the fingerlike protuberances of the epidermal cells. |
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| Keywords: | viola tricolor var hortensis floral nectary ultrastructure |
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