Acta Agriculturae Zhejiangensis ›› 2024, Vol. 36 ›› Issue (3): 622-633.DOI: 10.3969/j.issn.1004-1524.20240087

• Food Science • Previous Articles     Next Articles

Effect of vibration stress on anthocyanin metabolism and related gene expression in blueberry

HAN Yanchao1(), CHEN Huizhi1,2, NIU Ben1,2, ZHANG Xiaoshuan3, HAN Shuren4, WANG Xiaoyan1, WANG Guannan1, LIU Ruiling2,*(), GAO Haiyan1,2,*()   

  1. 1. Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Key Laboratory of Fruit and Vegetable Preservation and Processing in China’s Light Industry, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    2. Key Laboratory of Fruit Postharvest Treatment of the Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
    3. College of Engineering, China Agricultural University, Beijing 100083, China
    4. Xianfeng Fruit Co., Ltd., Hangzhou 310000, China
  • Received:2024-01-21 Online:2024-03-25 Published:2024-04-09

Abstract:

Blueberry is rich in bioactive substances such as anthocyanin and has high nutritional value. However, logistics vibration damage can accelerate the loss of nutrients such as blueberry anthocyanin and reduce nutritional quality. This article took the blueberry variety Lanmeiren as the experimental material and studied the effect of vibration stress on the anthocyanin components, metabolic enzymes activities, and genes expression of blueberry by simulating logistics vibration. The research results showed that blueberry contained 10 types of anthocyanin monomers, among which the content of quercetin-3-arabinose was the highest. In the early stage of blueberry storage, vibration stress accelerated the accumulation of anthocyanin, significantly increased the activities of phenylalanine ammonia lyase (PAL) and flavonoid glycosyltransferase (UFGT), and induced the expression of genes related to anthocyanin synthesis, such as VcPAL1, VcDFR2, VcCHI1, and VcUFGT. In the later stage of storage, the activities of PAL, chalcone isomerase (CHI), dihydroflavonol reductase (DFR), and UFGT in the vibration stress group were significantly lower than those in the control group. Meanwhile, vibration stress also delayed the decrease in the activity of enzymes related to anthocyanin degradation, such as peroxidase (POD), polyphenol oxidase (PPO) and anthocyanin-β-glucosidase, inhibited the expression of genes related to anthocyanin synthesis, and promoted the expression of genes related to anthocyanin degradation, such as VcPOD1, VcPOD2, VcPOD3, and VcPPO1. In summary, vibration stress accelerated the accumulation of anthocyanin in blueberry during early storage by increasing the activity of anthocyanin synthase and the expression of related enzyme genes. In the later stage of storage, vibration stress promoted the degradation of anthocyanin by delaying the decrease of anthocyanin degrading enzymes activities and related enzyme genes expression. The research results provided a theoretical basis for regulating the metabolism of blueberry anthocyanin.

Key words: blueberry, anthocyanin, enzyme, gene

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