Department of Plant Breeding and Seed Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki Square 24a, 50-363 Wrocław, Poland.
Department of Food Chemistry and Biocatalysis, Wrocław University of Environmental and Life Sciences, Norwida 25, 53-375 Wrocław, Poland.
Molecules. 2024 May 8;29(10):2193. doi: 10.3390/molecules29102193.
(L.) Benth. is a globally spread species, known for its characteristic spectacularly colorful leaves of decorative value. Thanks to its rich chemical composition, the plant is used in ethnopharmacology, and it is also regarded as having high medicinal potential. The application of in vitro cultures enables the acquisition of homogeneous certified material of high quality. Additionally, excluding the effect of biotic and abiotic factors on the plants is a way to fully recognize the influence of phytohormones on the plant morphology and the biosynthetic pathways of compound production. The best way to grow "Electric Lime" under in vitro conditions is to use the basic MS medium (Murashige and Skoog medium), enriched with naphthyl-1-acetic acid at a concentration of 0.5 mg dm. The analysis of volatile compounds demonstrated that the content of volatile compounds in the plants cultivated under in vivo conditions was expressed at a level of 2848.59 µg g, whereas in the plants bred in vitro without supplementation with phytohormones, the level was 8191.47 µg g. The highest content was noted for copaene, α-pinene, 1-octene-3-ol, α-selinene, sabinen, γ- and δ-cadinene, 3-octanol, and β-pinene. Aroma profiling revealed a lack of boranyl acetate, 2-hexenal, and 2-hexen-1-ol in the plants cultivated under in vivo conditions. Differences were found in the volatile composition between plants bred in vivo and in vitro, with the most significant recorded for the contents of 1-octen-3-ol and 3-octanol. The addition of plant growth regulators into the basic medium under in vitro conditions affected the percentage ratio and contents of specific compounds in plant tissues. The most intense biosynthesis of volatile compounds took place in the plants cultivated on the medium enriched with NAA at 10,579.11 µg g, whereas the least intense was noted for plants cultivated on the medium supplemented with BA, where it was recorded at the level of 5610.02 µg g. So far, there has been no research published which would pertain to the profiling of volatile compounds performed using the SPME (solid-phase microextraction) technique. Moreover, the very few studies conducted on the chemical composition of these compounds do not mention the specific variety of under analysis.
(拉丁名)是一种分布广泛的物种,以其具有装饰价值的绚丽多彩的叶子而闻名。由于其丰富的化学成分,该植物在民族药理学中得到应用,也被认为具有很高的药用潜力。体外培养的应用使我们能够获得高质量的同质认证材料。此外,排除生物和非生物因素对植物的影响是全面认识植物形态和化合物生产生物合成途径中植物激素影响的一种方式。在体外条件下种植“Electric Lime”的最佳方法是使用基本的 MS 培养基(Murashige 和 Skoog 培养基),其中添加萘乙酸,浓度为 0.5mg dm。挥发性化合物的分析表明,在体内条件下种植的植物中挥发性化合物的含量表达在 2848.59µg g 的水平,而在没有添加植物激素的体外培养的植物中,含量为 8191.47µg g。含量最高的化合物为古巴烯、α-蒎烯、1-辛烯-3-醇、α-环柠檬烯、β-榄香烯、γ-和 δ-杜松烯、3-辛醇和β-蒎烯。香气分析表明,在体内条件下种植的植物中缺乏硼酸乙酯、2-己烯醛和 2-己烯-1-醇。在体内和体外培养的植物之间发现了挥发性成分的差异,其中 1-辛烯-3-醇和 3-辛醇的含量差异最大。在体外条件下,在基本培养基中添加植物生长调节剂会影响植物组织中特定化合物的百分比比例和含量。在 NAA 浓度为 10,579.11µg g 的培养基中培养的植物中,挥发性化合物的生物合成最为强烈,而在补充 BA 的培养基中培养的植物中,其含量最低,记录为 5610.02µg g。到目前为止,还没有发表过使用 SPME(固相微萃取)技术对挥发性化合物进行分析的研究。此外,关于这些化合物化学组成的极少数研究也没有提到分析的具体品种。