生物技术通报 ›› 2013, Vol. 0 ›› Issue (3): 60-64.

• 研究报告 • 上一篇    下一篇

小麦种子萌发时期胚差异蛋白表达分析

刘向标,段江燕   

  1. 山西师范大学生命科学学院,临汾 041000
  • 收稿日期:2012-12-17 修回日期:2013-03-21 出版日期:2013-03-20 发布日期:2013-03-21
  • 作者简介:刘向标,男,硕士研究生,研究方向:生物化学;E-mail :lxb-19860112@163.com
  • 基金资助:
    山西省自然科学基金项目(2009011044-2)

Analysis of Differentially Expressed Proteins of Embryo During Seed Germination in Wheat

Liu Xiangbiao, Duan Jiangyan   

  1. College of Life Science,Shanxi Normal University,Linfen 041004)
  • Received:2012-12-17 Revised:2013-03-21 Published:2013-03-20 Online:2013-03-21

摘要: 为了解小麦种子在萌发时期胚蛋白质表达情况,通过双向电泳技术,对“晋麦-47”小麦种子未萌发和萌发3 h、 16 h 和25 h 的胚进行蛋白质分离。结果发现,“晋麦-47”小麦种子未萌发和萌发3 h、16 h 和15 h 的胚在PDQuest 图像分析软件 可识别的蛋白点分别有127、131、135 和141 个,其中表达量变化2.5 倍以上的蛋白点有17 个。选取表达量在2.5 倍以上的9 个 差异蛋白点进行质谱分析,初步鉴定出4 个蛋白质,分别是核苷二磷酸激酶Ⅰ、17.5 kD 热休克蛋白、ATP 合酶和LEA 蛋白27。

关键词: 小麦, 胚, 双向电泳, 质谱技术

Abstract: In order to investigate the embryo protein expression of the wheat seeds germination, tow-dimensionsl gel electrophoresis (2-DE) technology was used to separated proteins from ungerminated seed and embryo buds of germinated seed at specific stages of 3h, 16h, 25h in wheat “Jinmai-47”. The results showed that on the 2-DE gels PDQuest image software detected about 127, 131, 135, 141 protein spots, of which 17 spots show more than 2.5-fold changes in abundance among ungerminated seed and embryo buds of germinated seed at specific stages of 3 h, 16 h, 25 h in wheat “Jinmai-47”. These 9 of 17 protein spots treated by mass spectrometry analysis, of which 4 differential proteins were elementarily identified as nucleoside two phosphoglycerate kinase Ⅰ , 17.5 kD heat shock protein, ATP synthase and LEA protein 27.

Key words: Wheat, Embryo, Two-dimensional electrophoresis, Mass spectrometry technology