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首页> 外文期刊>Protoplasma: An International Journal of Cell Biology >Nectar production and transportation in the nectaries of the female Cucumis sativus L. flower during anthesis
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Nectar production and transportation in the nectaries of the female Cucumis sativus L. flower during anthesis

机译：雌花黄瓜花期花蜜蜜腺中的花蜜产生与运输。

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摘要

In an effort to gain a greater understanding of nectar production, we studied the dynamic mechanisms of starch accumulation and transformation and nectar transportation in the Cucumis sativus L. female flower. Starch, which is the main precursor of nectar, accumulates in the epidermis and underlying parenchyma, with the most active accumulation occurring in the parenchyma cells within 3 days prior to anthesis. Thereafter, the starch was successively hydrolyzed and the hydrolyte was transported from the amyloplasts to vacuoles, suggesting that amyloplasts and vacuoles are the centers of nectar production. In addition, we observed few plasmodesmata and the presence of invaginated plasmalemma and electron-dense material in the intercellular spaces, suggesting that the apoplast system is involved in nectar transportation in an ATPase-dependent fashion.
机译：为了加深对花蜜生产的了解，我们研究了黄瓜（Cucumis sativus L.）雌花中淀粉积累，转化和花蜜转运的动力学机制。淀粉是花蜜的主要前体，在表皮和下层薄壁组织中积累，最活跃的积累发生在花期前三天内。此后，淀粉被连续水解，并且水解产物从淀粉状体转移到液泡，表明淀粉状体和液泡是花蜜产生的中心。另外，我们观察到很少的胞浆胞瘤以及胞间空间中存在侵入的质膜和电子致密物质，这表明质外体系统以依赖ATPase的方式参与花蜜运输。

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