欢迎访问《中国农学通报》,

中国农学通报 ›› 2019, Vol. 35 ›› Issue (11): 37-42.doi: 10.11924/j.issn.1000-6850.casb17120099

所属专题: 生物技术

• 林学 园艺 园林 • 上一篇    下一篇

硫化氢对白桦悬浮细胞生长、黄酮和多酚累积的影响

孙思琳, 潘茗茗, 程玉雪, 王瑞麒, 周文洋, 范桂枝   

  1. 东北林业大学生命科学学院
  • 收稿日期:2017-12-23 修回日期:2018-02-22 接受日期:2018-02-24 出版日期:2019-04-15 发布日期:2019-04-15
  • 通讯作者: 孙思琳
  • 基金资助:
    东北林业大学本科生创新实验项目“硫化氢对白桦悬浮细胞生长、黄酮和多酚累积的影响”(201710225110);黑龙江省自然科学基金项目 “硫化氢对白桦悬浮细胞生长、黄酮和多酚累积的影响”(C2016005)。

Hydrogen Sulfide: Effect on Growth, Accumulation of Flavonoid and Polyphenol in Betula platyphylla Suspension Cells

  • Received:2017-12-23 Revised:2018-02-22 Accepted:2018-02-24 Online:2019-04-15 Published:2019-04-15

摘要: 旨在探究硫化氢(H2S)对白桦悬浮细胞生长、黄酮和多酚等次生代谢物累积的影响。将H2S供体硫氢化钠(NaHS)添加到培养8 天的白桦悬浮培养体系中,采用pH计、电导率仪和紫外分光光度计等分析pH值、电导率、细胞活力、丙二醛、过氧化氢酶(CAT)和苯丙氨酸解氨酶(PAL)活性、黄酮和多酚含量。NaHS处理后白桦悬浮细胞培养液的pH值呈降低趋势、电导率呈增加趋势;白桦悬浮细胞中的丙二醛含量、CAT和PAL酶活性、黄酮和多酚含量呈增加趋势,而细胞活力基本呈下降趋势,且NaHS处理对上述白桦悬浮细胞生长、黄酮和多酚含量的影响存在浓度和时间效应。其中,1 mmol/L NaHS处理24 h 时黄酮和多酚含量最高,分别是对照组的128.57%和136.89%。NaHS处理促进了白桦悬浮细胞中黄酮和多酚的累积。

关键词: 水稻, 水稻, 茎尖, 遗传转化, McCHIT1 基因

Abstract: To investigate the effects of hydrogen sulfide (H2S) on the growth and the accumulation of flavonoid and polyphenol in Betula platyphylla suspension cells, the hydrogen sulfide donor sodium hydrosulfide (NaHS) is added to the suspension culture system of Betula platyphylla for 8 days. pH meter, conductivity meter and ultraviolet spectrophotometer are used to analyze the pH value, conductivity, cell viability, malondialdehyde, catalase (CAT) and phenylalanine ammonia lyase (PAL) activity and the contents of flavonoids and polyphenols. After NaHS treatment, the pH value in Betula platyphylla suspension cells decreases, and the conductivity increases, the content of malondialdehyde, CAT and PAL enzyme activity, the content of flavonoids and polyphenols in the suspension cells of Betula platyphylla increase, while the cell viability basically declines. The NaHS treatment has a concentration and time effect on the growth of the suspension cells, and the contents of flavonoids and polyphenols. The contents of flavonoids and polyphenols are the highest with 1 mmol/L NaHS treatment for 24 h, which is 128.57% and 136.89% higher than that of the control, respectively. NaHS treatment could promote the accumulation of flavonoid and polyphenol in the suspension cells of Betula platyphylla.