Influences of Four Different Light-Emitting Diode Lights on Flowering and Polyphenol Variations in the Leaves of Chrysanthemum (Chrysanthemum morifolium)
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- 作者：Sung Woo Jeong ; Semin Park ; Jong Sung Jin ; On Nuri Seo ; Gon-Sup Kim ; Yun-Hi Kim ; Hanhong Bae ; Gyemin Lee ; Soo Taek Kim ; Won Sup Lee ; Sung Chul Shin
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2012
- 出版时间：October 3, 2012
- 年：2012
- 卷：60
- 期：39
- 页码：9793-9800
- 全文大小：367K
- 年卷期：v.60,no.39(October 3, 2012)
- ISSN：1520-5118
文摘
Light-emitting diodes (LEDs) are an efficient alternative to traditional lamps for plant growth. To investigate the influence of LEDs on flowering and polyphenol biosynthesis in the leaves of chrysanthemum, the plants were grown under supplemental blue, green, red, and white LEDs. Flower budding was formed even after a longer photoperiod than a critical day length of 13.5 h per day under blue light illumination. The weights of leaves and stems were highest under the white light illumination growth condition, whereas the weight of roots appeared to be independent of light quality. Among nine polyphenols characterized by high-performance liquid chromatography鈥搕andem mass spectroscopy, three polyphenols were identified for the first time in chrysanthemum. A quantitation and principal component analysis biplot demonstrated that luteolin-7-O-glucoside (2), luteolin-7-O-glucuronide (3), and quercetagetin-trimethyl ether (8) were the highest polyphenols yielded under green light, and dicaffeoylquinic acid isomer (4), dicaffeoylquinic acid isomer (5), naringenin (7), and apigenin-7-O-glucuronide (6) were greatest under red light. Chlorogenic acid (1) and 1,2,6-trihydroxy-7,8-dimethoxy-3-methylanthraquinone (9) were produced in similar concentrations under both light types. The white and blue light appeared inefficient for polyphenol production. Taken together, our results suggest that the chrysanthemum flowering and polyphenol production are influenced by light quality composition.