%0 Journal Article %A ZHANG Bin %A LI Meng %A JIANG Maoshuang %A WANG Junjie %A HOU Siyu %A HAN Yuanhuai %A LI Hongying %T Relationship Between Anthocyanin Accumulation and Response to Low Temperature Stress in Foxtail Millet %D 2020 %R 10.11869/j.issn.100-8551.2020.11.2607 %J Journal of Nuclear Agricultural Sciences %P 2607-2613 %V 34 %N 11 %X In order to explore the relationship between anthocyanin accumulation and response to low temperature stress of foxtail millet, green and purple variety which was rich in anthocyanin were treated at low and normal(CK) temperature at seedling stage. We observed the pigments distribution in leaves and measured the photosynthesis, anthocyanin, relative chlorophyll, malondialdehyde(MDA), proline(Pro) and soluble sugar(SS) content. The results showed that under low temperature, anthocyanins were mainly distributed in mesophyll cells, upper and lower epidermis cells in purple leaves, but almost no anthocyanins were detected in green variety. Compared with green variety, anthocyanins content changed obviously in purple leaves. Additionally, the anthocyanin content of purple variety B13, B45 and B55 increased by 234%, 226% and 126%, respectively, after 12 days of low temperature induction compared with the control group. After the induction of low temperature, the net photosynthetic rate(Pn) and the chlorophyll content of purple variety were decreased, while the SS and Pro content was significantly increased, and the MDA content did not show regular changes. The correlation analysis showed that the anthocyanin content of purple variety was significantly negatively correlated with relative chlorophyll content and Pn, but significant positively correlated with Pro and SS content after 12 days of low temperature induction, while the relative chlorophyll content was positively correlated with Pn of purple variety. Thus, the anthocyanin in leaves of purple foxtail millet varieties can be induced by low temperature, and it can participate in response to low temperature stress together with Pro and SS in foxtail millet. The study provides a theoretical basis for exploring the cold resistance of purple leaf of foxtail millet and expanding the planting area. %U https://www.hnxb.org.cn/EN/10.11869/j.issn.100-8551.2020.11.2607