食品科学 ›› 2020, Vol. 41 ›› Issue (14): 190-194.doi: 10.7506/spkx1002-6630-20190619-217

• 生物工程 • 上一篇    下一篇

基于Label-free技术的汉麻籽不同发芽时期蛋白质组学分析

董 艳,张正海,王 宁,孙宇峰,魏连会,宋淑敏,姬妍茹,杨庆丽,石 杰,田 媛   

  1. (1.黑龙江省科学院大庆分院,黑龙江 大庆 163319;2.黑龙江省八一农垦大学,黑龙江 大庆 163319)
  • 发布日期:2020-07-29
  • 基金资助:
    黑龙江省院所基本应用技术研究专项(ZNBZ2018DQ01);黑龙江省科学院科学招标制项目(ZB2018004)

Label-free Differential Proteomics Analysis of Hemp Seeds at Different Germination Stages

DONG Yan, ZHANG Zhenghai, WANG Ning, SUN Yufeng, WEI Lianhui, SONG Shumin, JI Yanru, YANG Qingli, SHI Jie, TIAN Yuan   

  1. (1. Daqing Branch of Heilongjiang Academy of Sciences, Daqing 163319, China;2. Heilongjiang Bayi Agricultural University, Daqing 163319, China)
  • Published:2020-07-29

摘要: 为了解汉麻籽不同发芽时期的差异蛋白质表达情况,利用非标记(Label-free)定量技术和液相色谱-串联质谱技术比较汉麻籽在自然发芽12、24、36、48 h与原点的蛋白质组分,并对其差异蛋白质进行生物信息学分析,探讨汉麻籽在发芽过程中的差异蛋白质的分布、功能及作用机制。结果表明,与原点相比,在汉麻籽萌发的4 个时间点,分别鉴定出差异蛋白质86、106、135、158 种(差异倍数>1.5,P<0.05)。基因本体富集分析显示,上述差异蛋白广泛涉及代谢过程、细胞过程、单体细胞过程等重要生物学过程。KEGG代谢分析表明,差异蛋白质主要参与调节氨基酸的生物合成、碳代谢、2-氧羧酸代谢和糖酵解/糖异生通路。

关键词: 汉麻籽;液相色谱-串联质谱法;差异蛋白质

Abstract: In order to investigate the differential protein expression profile of hemp seeds at different germination periods, we analyzed the protein components of hemp seeds at 0, 12, 24, 36, and 48 h of germination by label-free quantitative proteomics and liquid chromatography-tandem mass spectrometry (LC-MS/MS). Bioinformatics analysis was also conducted to explore the distribution, function and mechanism of action of the differential proteins during the germination process. The results suggested that compared with ungerminated seeds, a total of 86, 106, 135 and 158 differential proteins >1.5 folds, P < 0.05) were identified at four time points of germination. Gene ontology (GO) enrichment analysis showed that the differential proteins participated in important biological processes such as metabolic process, cellular process and single organism process. KEGG pathway analysis indicated that these proteins were involved in the biosynthesis of amino acids, carbon metabolism, 2-oxocarboxylic acid metabolism and glycolysis/gluconeogenesis.

Key words: hemp seeds; liquid chromatography-tandem mass spectrometry; differential protein

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