Journal of Integrative Agriculture ›› 2022, Vol. 21 ›› Issue (5): 1525-1533.DOI: 10.1016/S2095-3119(21)63765-6

所属专题: 食品科学合辑Food Science

• • 上一篇    下一篇

  

  • 收稿日期:2020-10-12 接受日期:2021-04-19 出版日期:2022-05-01 发布日期:2021-04-19

Sodium dehydroacetate treatment prolongs the shelf-life of ‘Kyoho’ grape by regulating oxidative stress and DNA methylation

GUO Da-long1, 2, LIU Hai-nan1, 2, WANG Zhen-guang1, 2, GUO Li-li2, ZHANG Guo-hai1, 2   

  1. 1 College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, P.R.China
    2 Henan Engineering Technology Research Center of Quality Regulation and Controlling of Horticultural Plants, Luoyang 471023, P.R.China
  • Received:2020-10-12 Accepted:2021-04-19 Online:2022-05-01 Published:2021-04-19
  • About author:Correspondence GUO Da-long, E-mail: guodalong@haust.edu.cn
  • Supported by:
    This work was financially supported by the National Natural Science Foundation of China (U1904113), the National Key Research and Development Program of China (2018YFD1000105), the Program for Innovative Research Team (in Science and Technology) in University of Henan Province, China (21IRTSTHN021), and the Program for Science & Technology Innovation Talents in Universities of Henan Province, China (21HASTIT035).

摘要:

本研究通过设置不同浓度的脱氢乙酸钠(SD)(0即对照、0.01、0.1和1.0 mmol L-1),研究SD延长‘巨峰’葡萄货架期的效果。结果表明0.01 mmol L-1的SD对于延长‘巨峰’葡萄的货架期效果最好。与对照相比,0.01 mmol L-1 SD处理的‘巨峰’葡萄果实失重率、褐变指数、过氧化氢(H2O2)和丙二醛含量(MDA)显著降低,且好果率、果实硬度、总可溶性固形物含量、抗坏血酸含量和超氧化物歧化酶(SOD)活性均显著升高。此外,甲基化敏感扩增多态性(MSAP)检测结果表明,0.01 mmol L-1 SD处理后,‘巨峰’葡萄的DNA甲基化水平显著高于对照。综上,0.01 mmol L-1 SD可用于延长‘巨峰’葡萄的货架期。本研究结果还揭示了葡萄贮藏过程中活性氧(ROS)代谢与DNA甲基化水平变化之间的密切联系


Abstract: In this study, we tested the ability of sodium dehydroacetate (SD) to extend the shelf-life of ‘Kyoho’ grape.  Among the different concentrations of SD tested (0, 0.01, 0.1 and 1.0 mmol L–1), 0.01 mmol L–1 SD was the most effective in prolonging the shelf-life of ‘Kyoho’ grape.  Compared with the control, the weight loss rate, browning index and hydrogen peroxide (H2O2) and malonaldehyde contents were significantly lower in the 0.01 mmol L–1 SD treatment, whereas the healthy berry rate, berry firmness, total soluble solids (TSS) content, ascorbic acid content and superoxide dismutase (SOD) activity were significantly higher.  In addition, an analysis of ‘Kyoho’ grape DNA using methylation sensitive amplification polymorphism (MSAP) markers showed that the average DNA methylation level was significantly higher in the 0.01 mmol L–1 SD treatment than in the control.  Together, these results indicate that 0.01 mmol L–1 SD could be used to extend the shelf-life of ‘Kyoho’ grape.  Moreover, a strong connection between reactive oxygen species (ROS) metabolism and DNA methylation change during storage was revealed.

Key words: grape , sodium dehydroacetate ,  DNA methylation ,  MSAP ,  shelf-life