右叶利比。属于马鞭草科,是塞拉多特有的。该物种是芳香的,其特征在于其叶子上存在富含单萜的腺毛。这项研究的目的是评估生长,光合色素生产,以及在不同波长和强度下体外生长的圆叶乳杆菌的化学成分。光强度由使用20、54、78、88和110μmolm-2s-1的冷白色荧光灯进行的五种处理组成。光质量包括使用不同光波长的发光二极管(LED)的六种处理,即,白色,红色,蓝色,和它们的相互作用:1R:1B,2.5R:1B,1R:2.5B45天后,生物测定参数,光合色素含量,和挥发性化合物进行了评估。20和54μmolm-2s-1的较低光照强度产生较高的生长,光合色素含量,和生物量积累。月桂烯和十五烷分别在88和110μmolm-2s-1的光强度下最高。在20和54μmolm-2s-1强度下获得最高的柠檬烯和奥西烯酮水平,分别,并且在78μmolm-2s-1强度下获得了最高的Myrcenone含量。关于光波长,红色和蓝色光谱的结合进一步刺激了植株的生长,2.5R:1B组合获得了最佳的生物特征数据和总叶绿素含量。在1R:2.5B光谱下,z-辛烯酮化合物的含量最高。单色蓝色光谱增加了月桂烯和柠檬烯的含量,但降低了月桂烯的含量,红色的光增加了。用白色光谱以及红色和蓝色组合获得最高的十五烷含量。
Lippia rotundifolia Cham. is in the family Verbenaceae and is endemic to the Cerrado. This species is aromatic and characterized by the presence of glandular trichomes on its leaves that are rich in monoterpenes. The objective of this
study was to evaluate the growth, photosynthetic pigment production, and chemical composition of L. rotundifolia grown in vitro under different light wavelengths and intensities. The light intensities consisted of five treatments using cool white fluorescent lamps at 20, 54, 78, 88, and 110 μmol m-2 s-1. The light quality consisted of six treatments using light-emitting diodes (LEDs) in different light wavelengths, namely, white, red, blue, and their interactions: 1R:1B, 2.5R:1B, and 1R:2.5B. After 45 days, the biometric parameters, photosynthetic pigment content, and volatile compounds were evaluated. The lower light intensities of 20 and 54 μmol m-2 s-1 generated higher growth, photosynthetic pigment content, and biomass accumulation. Myrcene and pentadecane were highest under light intensities of 88 and 110 μmol m-2 s-1, respectively. The highest limonene and ocimenone levels were obtained at 20 and 54 μmol m-2 s-1 intensity, respectively, and the highest myrcenone content was obtained at 78 μmol m-2 s-1 intensity. Regarding the light wavelengths, the combination of red and blue spectra further stimulated plantlet growth, and the 2.5R:1B combination obtained the best biometric data and total chlorophyll content. The z-ocimenone chemical compound contents were highest under the 1R:2.5B light spectrum. The monochromatic blue spectrum increased the myrcene and limonene content but decreased the myrcenone content, which was increased by red light. The highest pentadecane contents were obtained with the white spectrum and the red and blue combinations.