Relationship between the morphological structure of floral nectaries and the formation, transport, and secretion of nectar in lychee

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• 作者：Xi-ping Ning ; Tie-xin Tang ; Hong Wu
• 关键词：Litchi chinensis Sonn ; Floral nectary ; Ultrastructure ; Enzyme cytochemistry ; Nectar secretion
• 刊名：Trees
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：31
• 期：1
• 页码：1-14
• 全文大小：
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Forestry; Plant Sciences; Agriculture; Plant Anatomy/Development; Plant Pathology; Plant Physiology;
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-2285
• 卷排序：31

文摘

Key messageThe sugar in nectar secreted from the floral nectaries of lychee (Litchi chinensisSonn.) was composed of both the phloem sap and the starch synthesized by the nectariferous tissue itself. Sugar hydrolyzed from the starch and from the phloem might be transported to the endoplasmic reticulum (ER) and the Golgi cisternae, further transported via ER and Golgi vesicles, and eventually released to the spaces between the plasmalemma and cell wall by exocytosis. There was a specific sugar transport and secretory mechanism in the lychee floral nectary.