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首页> 外文会议>Conference on key technology of horticulture >Effects of Ethephon on Photosynthesis Metabolism and Terpene Trilactones Biosynthesis in Ginkgo Biloba Leaves
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Effects of Ethephon on Photosynthesis Metabolism and Terpene Trilactones Biosynthesis in Ginkgo Biloba Leaves

机译：Ethephon对银杏叶片叶片光合作用和萜烯三甲酸酯生物合成的影响

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摘要

The content of terpene trilactones determines the quality characteristics of Ginkgo biloba extract. One of the means to increase terpene trilactones content is the use of plant growth regulators. The objective of this article is to study the effect of ethephon on terpene trilactones photosynthesis, photosynthetic pigment, and total sugar content and in ginkgo leaves. The ginkgo seedlings were grown in the greenhouse conditions with foliar applications of 0 (control), 0.5, 1.5-1 and 2.5 I-1 ethephon. Results showed that 1.5 and 2.5 I-1 ethephon treatments significantly increased net photosynthetic rate, stomatal conductance, intercellular CO2 concentration, transpiration rate, and the contents of chlorophyll, carotenoids and soluble sugar in ginkgo leaves. The contents of GA, GC, BB and total terpene trilactones of the leaves were significantly increased by 1.5 and 2.5 I-1 ethephon treatments, whereas the content of GB was not significantly affected by ethephon treatment. Foliar treatment with ethephon therefore might be a useful means for improving pharmacological properties of G. biloba leaves.
机译：萜内酯的含量决定银杏叶提取物的质量特性。增加萜烯三嵌体含量的手段之一是使用植物生长调节剂。本文的目的是研究乙烯利对萜内酯光合作用，光合色素，以及总糖含量和银杏叶中的作用。银杏幼苗在0（对照）的叶面施用，0.5％，1.5-1和2.5 I-1乙烯利的温室条件下生长。结果表明，在1.5和2.5 I-1乙烯利处理显著增加的净光合速率，气孔导度，胞间CO2浓度，蒸腾速率，和叶绿素，类胡萝卜素和可溶性糖的银杏叶中的内容。 GA，GC，BB和叶总萜内酯的含量显著上升1.5和2.5 I-1乙烯利处理，而GB的内容没有被乙烯利处理显著的影响。用乙烯利叶面处理因此可能是用于改善银杏叶的药理学性质的有用手段。

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