Different light-quality colored films affect growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation in Glechoma longituba plants.

IF 2.1 4区生物学 Q2 PLANT SCIENCES

Photosynthetica Pub Date : 2022-11-24 eCollection Date: 2023-01-01 DOI:10.32615/ps.2022.046

L X Zhang, Q S Chang, Q S Guo, X G Hou, L Liu, Z B Zhu, S D Chen

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Abstract

To elucidate the adaptive strategies of Glechoma longituba in response to different light-quality colored films, the growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation were analyzed. In this study, four colored films improved electron transport and maintained the function of PSII, and allocated more light energy absorbed for photochemical reactions, thus increasing the photosynthetic capacity and ultimately improving dry mass accumulation. Additionally, blue film (BF) and green film (GF) enhanced photosynthesis by increasing stomatal openness and chlorophyll contents and maintaining chloroplast structural integrity, thereby promoting dry mass and triterpene acid (TA) accumulation of G. longituba. Red film excessively increased starch grains, inhibited photosynthate output and consequently reduced the concentration and yield of ursolic acid (UA). Yellow film decreased stomatal openness and chlorophyll concentrations, which was not conducive to chloroplast development, and also decreased the concentration and yield of UA. In conclusion, the application of BF and GF may represent an effective cultivation practice that can be used to achieve the highest TA yields in plantings of G. longituba.

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不同光质色膜对青花植株生长、光合作用、叶绿体超微结构和三萜酸积累均有影响

缩写:AQE—表观量子效率;BF -蓝膜;类胡萝卜素;Chl -叶绿素;D - PSII天线吸收的热耗散光的比例;DM—干质量;ETR—电子转移速率;PSII天线吸收的光的Ex - fraction，既不用于光合电子传递，也不用于热耗散;f0 -暗适应态的最小荧光产额;f0′-适应光态的最小荧光产额;FM—新鲜质量;F -暗适应状态下的最大荧光产额;F -光适应状态下的最大荧光产额;F v′/F m′—开放PSII中心激发捕获效率;GF—绿色薄膜;LCP—光补偿点;LSP—光饱和点;NPQ—非光化学猝灭系数;OA -齐墩果酸;P - PSII天线吸收光的比例，用于PSII光化学;P Nmax—光饱和净光合速率;q P—光化学猝灭系数;R/B——红光与蓝光的比值;为研究不同光质色膜对青花青花的适应策略，对青花青花的生长、光合作用、叶绿体超微结构和三萜酸积累进行了分析。在本研究中，四种彩色薄膜改善了电子传递，维持了PSII的功能，并将更多吸收的光能分配给光化学反应，从而提高了光合能力，最终改善了干质量积累。此外，蓝膜(BF)和绿膜(GF)通过增加气孔开度和叶绿素含量，维持叶绿体结构完整性，促进了经桐的光合作用，从而促进了干质量和三萜酸(TA)的积累。红膜过度增加了淀粉粒，抑制了光合产物的输出，从而降低了熊果酸(UA)的浓度和产量。黄膜降低了气孔开度和叶绿素浓度，不利于叶绿体发育，也降低了UA的浓度和产量。综上所述，BF和GF的应用

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来源期刊

Photosynthetica 生物-植物科学

CiteScore

5.60

自引率

7.40%

发文量

审稿时长

3.8 months

期刊介绍： Photosynthetica publishes original scientific papers and brief communications, reviews on specialized topics, book reviews and announcements and reports covering wide range of photosynthesis research or research including photosynthetic parameters of both experimental and theoretical nature and dealing with physiology, biophysics, biochemistry, molecular biology on one side and leaf optics, stress physiology and ecology of photosynthesis on the other side. The language of journal is English (British or American). Papers should not be published or under consideration for publication elsewhere.