茶树橙花叔醇合成酶基因的催化功能、时空表达及其调控机理

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香气是评价茶叶品质的重要指标之一,茶叶各类挥发性香气物质中萜类物质对成品茶的香气品质有很大影响。最近的研究表明,植物挥发性萜类物质合成酶基因的表达受茉莉酸及其下游的MYC2转录因子的调节。本研究旨在探明茶树中参与主要倍半萜香气物质生物合成的萜类合成酶基因的功能及这些基因的时空表达特点与调控技术,以增进茶叶香气品质和茶树抗逆性。倍半萜中的橙花叔醇具有宜人的香味,它以糖苷态储藏在茶树叶片中是茶叶香气形成的前体物质,其含量的高低决定了茶叶香气的香型和品质。倍半萜是植物逆境诱导的挥发性物质的重要组成成分,它
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