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首页> 外文会议>Photosynthesis research for food, fuel and future >Response of Chlorophyll Fluorescence Parameters of Illicium Lanceolatum to Different Light Conditions
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Response of Chlorophyll Fluorescence Parameters of Illicium Lanceolatum to Different Light Conditions

机译：长白花叶绿素荧光参数对不同光照条件的响应

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Illicium lanceolatum is a unique plant in traditional Chinese medicine. The shikimic acid, extracted from I. lanceolatum, has functions of anti-inflammatory, analgesic and inhibiting platelet aggregation, arterial and venous thrombosis and cerebral thrombosis. It can also function as an intermediate for anti-virus and anti-cancer drugs. For example, it is a vital element of Oseltamivirphosphate for antiAvian Influenza. Because of this, I.lanceolatum and other species in this genus have been given an unprecedented attention and have potential for further development and utilization. Previous studies have shown that photosynthetic efficiency restricted the biomass and limited the Shikimic acid content of I.lanceolatum seedlings. The primary objective of the study was to examine the physiological and biochemical foundation of growth and biomass accumulation of I.lanceolatum seedlings and to provide theoretical guidance for regular cultivation. The chlorophyll fluorescence kinetics technique was used in this study. The kinetics parameters of fast chlorophyll fluorescence were measured for 4-year-old I.lanceolatum seedlings in Zhejiang province of China, under different light shading treatments (0%, 50% and 80%) using a plant efficiency analyzer (PEA) and JlP-test. The results showed that the maximal photochemical efficiency of Photosystem Ⅱ(Fv/Fm) decreased as the shading level increased. The ratio of Fv/Fm for 50% and 80% shading treatments decreased by 1.34% and 2.79% respectively, comparing with the control (0% shading treatment). The density of reaction centers(RC/CS) decreased by 2.94% and 13.63% for 50% and 80% shading treatments respectively, comparing with the control, and the energy dissipation per RC (DIo /RC) increased by 2.2% and 62.9% respectively. ANOVA analysis showed that actual light use efficiency, the fraction of absorbed light in photochemistry (P), for I.lanceolatum leaf under 50% shading exhibited no significant difference from the control(P＞0.05). However, for I.lanceolatum leaf under 80% shading, there was a significant decrease of the fraction of absorbed light in photochemistry (P) (P<0.01). We concluded that I.lanceolatum seedlings under 50% shading could enhance the actual light use efficiency. The results obtained have physiological and biochemical implications for ways to improve biomass accumulation and content of Shikimic acid of I.lanceolatum plants.
机译：八角茴香是中药中独特的植物。从披头草中提取的sh草酸具有消炎，止痛和抑制血小板聚集，动静脉血栓形成和脑血栓形成的功能。它也可以用作抗病毒和抗癌药物的中间体。例如，它是磷酸奥司他韦对抗禽流感的重要组成部分。因此，该属中的披头草和其他物种受到了前所未有的关注，并具有进一步开发和利用的潜力。先前的研究表明，光合作用效率限制了披头草幼苗的生物量并限制了其草酸的含量。该研究的主要目的是研究披头草幼苗生长和生物量积累的生理和生化基础，并为常规栽培提供理论指导。本研究使用叶绿素荧光动力学技术。使用植物效率分析仪（PEA）和JlP，在不同遮光处理（0％，50％和80％）下，对浙江省4岁的柳树幼苗的快速叶绿素荧光动力学参数进行了测量。 -测试。结果表明，随着遮光度的增加，光系统Ⅱ的最大光化学效率（Fv / Fm）降低。与对照组（0％遮光处理）相比，遮光和50％处理的Fv / Fm比分别降低了1.34％和2.79％。 50％和80％遮光处理的反应中心密度（RC / CS）分别比对照组降低了2.94％和13.63％，每RC的能量耗散（DIo / RC）分别提高了2.2％和62.9％分别。方差分析表明，在50％遮荫条件下，石竹叶片的实际光利用效率，光化学吸收光分数（P）与对照组无显着性差异（P＞ 0.05）。但是，对于遮光度为80％的披针叶，光化学中的吸收光分数显着降低（P）（P <0.01）。我们得出的结论是，在50％遮荫下的轮叶幼苗可以提高实际的光利用效率。所获得的结果对改善披针草植物生物量积累和and草酸含量的方法具有生理和生化意义。

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