Evaluation of protein extraction methods for Vitis vinifera leaf and root proteome analysis by two-dimensional electrophoresis |
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Authors: | Jellouli Neila Salem Asma Ben Ghorbel Abdelwahed Jouira Hatem Ben |
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Institution: | Centre de Biotechnologie de Borj Cédria, Tunisia. jel_neil@yahoo.fr |
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Abstract: | An efficient protein extraction method is crucial to ensure successful separation by two-dimensional electrophoresis(2-DE)for recalcitrant plant species, in particular for grapevine(Vitis vinifera L.). Trichloroacetic acid-acetone(TCA-acetone)and phenol extraction methods were evaluated for proteome analysis of leaves and roots from the Tunisian cultivar 'Razegui'. The phenol-based protocol proved to give a higher protein yield,a greater spot resolution, and a minimal streaking on 2-DE gels for both leaf and root tissues compared with the TCA-based protocol. Furthermore, the highest numbers of detected proteins on 2-DE gels were observed using the phenol extraction from leaves and roots as compared with TCA-acetone extraction. |
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