Proteomic analysis of differentially expressed proteins induced by salicylic acid in suspension-cultured ginseng cells

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Abstract

In this study, optimized 2-DE sample preparation methodologies were established for suspension-cultured ginseng cells. Three commonly used protein extraction methods (Trichloroacetic acid-acetone, urea/thiourea and phenol extraction method) were evaluated for proteomic analysis of suspension cultures of ginseng. A comparative analysis of suspension-cultured ginseng cells proteome induced by salicylic acid (SA) was reported. The results demonstrated that phenol extraction method was the best method based on protein extraction efficiency and the good quality of 2-DE patterns for suspension-cultured ginseng cells. Fifteen differentially expressed proteins induced by salicylic acid in suspension-cultured ginseng cells were identified by MALDI-TOF-MS. These identified proteins were involved in defense and stress response, energy metabolism, signal transduction/transcription, protein synthesis and metabolism, and photosynthesis. Chaperonin 60, related to defense responses, was more abundant in suspension-cultured ginseng cells after application of SA. Vacuolar ATPase subunit B was newly induced in SA treatment. © 2013.

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Sun, J., Fu, J., & Zhou, R. (2014). Proteomic analysis of differentially expressed proteins induced by salicylic acid in suspension-cultured ginseng cells. Saudi Journal of Biological Sciences, 21(2), 185–190. https://doi.org/10.1016/j.sjbs.2013.09.011

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