Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (1): 181-187. doi: 10.7668/hbnxb.20192668

• Resources & Environment·Plant Protection • Previous Articles     Next Articles

Establishment and Optimization of Bidirectional Electrophoresis System of Total Protein from Cabernet sauvignon Buds Induced by Apolygus lucorum Feeding

GAO Suhong1,2,3, GE Changhong2, ZHOU Guona1, YAO Shujuan2, LU Changkuan2, GAO Baojia1   

  1. 1. College of Forestry,Hebei Agricultural University,Baoding 071001,China
    2. College of Agronomy and Biotechnology,Hebei Normal University of Science & Technology,Changli 066600,China
    3. Hebei Key Laboratory of Crop Stress Biology(in Preparation),Changli 066600,China
  • Received:2021-09-08 Published:2022-02-28

Abstract:

In order to establish a proteomic 2-DE system for the defense response of Cabernet sauvignon winter buds under Apolygus lucorum feeding stress,Cabernet sauvignon grape winter buds were used as materials to compare the effects of different protein extraction methods,sample loading and gel staining techniques on the 2-DE chromatogram.It provided reference for subsequent studies on screening and analyzing differential proteins.Winter buds of Cabernet sauvignon grape were selected,and feeding stress and blank control experiments were conducted,respectively.After 24 h,the samples were taken back with liquid nitrogen and frozen at -80 ℃.Crude protein powder was extracted by TCA-acetone and TCA-acetone+phenol extraction.Protein concentration was determined by CBB G-250 staining.Sample loading and gel staining techniques were determined.Gel images were obtained by scanning for comparative analysis.Crude protein for 2-DE could be obtained by different extraction methods.The amount of crude protein obtained by TCA-acetone method was significantly higher than that obtained by TCA-acetone+phenol extraction method.The concentrations of total protein extracted by the two methods were different,but both of them met the requirements of two-dimensional gel electrophoresis.TCA-acetone method was easier to operate and less protein loss.The influence of different loading amount on the effect of 2-DE was significant.Compared with 800 μg protein,400 μg protein showed clear protein spots and was easy to separate.The results of CBB staining showed that R-350 was more suitable for total protein two-dimensional gel electrophoresis of grape winter bud.Using TCA-acetone method,400 μg protein sample,17 cm pH value 4—7 IPG dry adhesive strip,G-350 thermal staining 2-DE system to obtain the total protein gel map of Cabernet sauvignon winter buds met the requirements of further test.

Key words: Cabernet sauvignon, Apolygus lucorum, Proteomics, Two-dimensional electrophoresis, Inducible resistance

Cite this article

GAO Suhong, GE Changhong, ZHOU Guona, YAO Shujuan, LU Changkuan, GAO Baojia. Establishment and Optimization of Bidirectional Electrophoresis System of Total Protein from Cabernet sauvignon Buds Induced by Apolygus lucorum Feeding[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(1): 181-187. doi: 10.7668/hbnxb.20192668.

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