Effect of Blue and Red LED Light Irradiation on 尾-Cryptoxanthin Accumulation in the Flavedo of Citrus Fruits
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- 作者：Gang Ma ; Lancui Zhang ; Masaya Kato ; Kazuki Yamawaki ; Yoshikazu Kiriiwa ; Masaki Yahata ; Yoshinori Ikoma ; Hikaru Matsumoto
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2012
- 出版时间：January 11, 2012
- 年：2012
- 卷：60
- 期：1
- 页码：197-201
- 全文大小：834K
- 年卷期：v.60,no.1(January 11, 2012)
- ISSN：1520-5118
文摘
尾-Cryptoxanthin (尾-cry), an antioxidant abundant in citrus fruits, plays an important role in the prevention and treatment of certain diseases, especially cancers. In the present study, to increase the content of 尾-cry in citrus flavedo, the effects of blue (470 nm) and red (660 nm) light-emitting diode (LED) lights on the accumulation of carotenoids and expression of genes related to carotenoid biosynthesis were investigated in the flavedo of Satsuma mandarin. The results showed that accumulation of 尾-cry was induced by red light, while it was not affected by blue light. The accumulation of 尾-cry under red light was attributed to simultaneous increases in the expression of CitPSY, CitPDS, CitZDS, CitLCYb1, CitLCYb2, CitHYb, and CitZEP. The results presented herein might provide new strategies to enhance the commercial and nutritional value of citrus fruits.