Light-Induced Anthocyanin Reduces the Extent of Damage to DNA in UV-Irradiated Centaurea cyanus Cells in Culture :
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- Takahashi,Akihisa
- Department of Biology, Tokyo Gakugei University
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- Takeda,Kosaku
- Department of Biology, Tokyo Gakugei University
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- Ohnishi,Takeo
- Department of Biology, Nara Medical University
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抄録
Using suspension cultures of Centaurea cyanus L. cells, in which the biosynthesis of anthocyanin is induced by illumination with UV-containing white light and in which the level of pigment can be controlled, we examined the sensitivity of the cells to both UV-B and UV-C irradiation and the formation of pyrimidine dimer as a result of exposure to UV light, with a special reference to the level of accumulation of anthocyanin pigment in the cells. The sensitivity of the cells to UV-B or UV-C decreased as their anthocyanin content increased. Furthermore, the extent of formation of pyrimidine dimers induced by irradiation with UV-B or UV-C light was found to be reduced in cells with accumulated anthocyanin. Both the extent of resistance to UV irradiation and the reduction in the extent of formation of dimers as a result of exposure to UV light were correlated with the levels of accumulated anthocyanin pigment in the cells. The results show that anthocyanin, a kind of flavonoid, plays a role in protecting cells from the adverse effects of UV light.
収録刊行物
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- Plant and cell physiology
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Plant and cell physiology 32 (4), 541-547,
Japanese Society of Plant Physiologists
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詳細情報
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- CRID
- 1543387470127642624
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- NII論文ID
- 110003719956
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- NII書誌ID
- AA0077511X
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- 本文言語コード
- en
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- データソース種別
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- NDL-Digital
- CiNii Articles