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采用超弱发光图像探测系统对蟛蜞菊、千日红花蕾、翠菊等植物样品进行了自发的和光诱导的超弱发光图像探测 ,对大花紫薇叶片的延迟发光进行了初步的光谱探测。结果表明 :植物自发发光与延迟发光的强度及其分布是有区别的 ,自发发光强度远小于延迟发光强度 ;与有丝分裂和生长代谢有关的植物超弱发光在光诱导下得以加强 ;千日红花蕾的延迟发光遵循双曲线衰减规律 ,说明生物光子具有一定的相干性 ;叶片的延迟发光光谱比离体叶绿素荧光光谱复杂 ,延迟发光光谱包含有更多的生理学信息。
The ultra-weak luminescence image detection system was used to detect the spontaneous and light-induced ultra-weak luminescence images of plants such as flowering plants, millet buds, aster, and so on. The preliminary spectroscopic detection of the delayed luminescence was carried out on the leaves of Lagerstroemia spec. The results showed that the intensity and distribution of spontaneous luminescence and delayed luminescence were different, the spontaneous luminescence intensity was far less than the delayed luminescence intensity; the ultraweak luminescence of plants related to mitosis and growth and metabolism was enhanced under light induction; The delayed photoluminescence of bud follows hyperbolic decay law, indicating that biophotons have certain coherence. The delayed photoluminescence spectrum of leaf is more complicated than that of in vitro chlorophyll fluorescence spectrum, and delayed photoluminescence spectrum contains more physiological information.