Medicinally Important Secondary Metabolites and Growth of Hypericum perforatum L. Plants as Affected by Light Quality and Intensity

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概要

• 論文の詳細を見る

• Hypericum perforatum L. (St. Johns wort) is a traditional medicinal plant that is mainly used for the treatment of neurological disorders and depression. The present study was undertaken to investigate the effects of different light quality, including blue, white, and red light, in combination with two light intensities, 250 and 500 μmol m-2s-1 photosynthetic photon flux (PPF) on the concentrations of medicinally important secondary metabolites in the leaf tissues and growth of H. perforatum plants. The results revealed that growth was greatest in those plants grown under white and red light with 500 μmol m-2s-1 PPF. The hypericin and pseudohypericin contents of the plants grown under red light with 250 μmol m-2s-1 PPF were 1.9 and 1.9 times higher, respectively, than those grown under red light with 500 μmol m-2s-1 PPF. The differences in contents between blue and white light treatment were not significant for plants grown with 250 μmol m-2s-1 PPF. Our result revealed that the contents of medicinally important secondary metabolites in the tissues of H. perforatum plants can be altered by controlling the light environment.

• 日本生物環境工学会の論文
• 2007-06-30

著者

• Zobayed Sayed

  Faculty Of Horticulture Chiba University

• Kozai Toyoki

  Faculty Of Horticulture Chiba University

• NISHIMURA Tetsuro

  Faculty of Horticulture, Chiba University

• GOTO Eiji

  Faculty of Horticulture, Chiba University

• Nishimura Tetsuro

  Faculty Of Horticulture Chiba University

• Goto Eiji

  Faculty Of Horticulture Chiba University

関連論文

• Experimental Verification of Control Logic for Operation of a Fog Cooling System for a Naturally Ventilated Greenhouse
• Developing Control Logic for a High-Pressure Fog Cooling System Operation for a Naturally Ventilated Greenhouse
• Medicinally Important Secondary Metabolites and Growth of Hypericum perforatum L. Plants as Affected by Light Quality and Intensity
• Optimizing the Duration of Acclimatization under Artificial Light for St. John's Wort Plantlets Grown Photoautotrophically and Photomixotrophically In Vitro
• Enhancement of Biomass and Secondary Metabolite Production of St. John's Wort (Hypericum perforatum L.) under a Controlled Environment
• Necessity and Production of Medicinal Plants under Controlled Environments
• Effects of Planting Density and Air Current Speed on the Growth and Uniformity of Qing-geng-cai and Spinach Plug Seedlings in a Closed Transplant Production System
• Air and Leaf Temperatures and Relative Humidity in a Naturally Ventilated Single-Span Greenhouse with a Fogging System for Cooling and Its Evaporative Cooling Efficiency
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