Comparative analysis of protein profiles of toxic and non-toxic Jatropha curcas latex
Lucsame Gurnecka, Eleni Gentekakia, Janthima Jaresitthikunchaib, Teerawit Waratrujiwonga, Sittiruk R* Author for corresponding; e-mail address: siam@mfu.ac.th
Volume: Vol.44 No.4 (October 2017)
Research Article
DOI:
Received: 15 July 2016, Revised: -, Accepted: 22 September 2016, Published: -
Citation: Gurnecka L., Gentekakia E., Jaresitthikunchaib J., Waratrujiwonga T. and R S., Comparative analysis of protein profiles of toxic and non-toxic Jatropha curcas latex, Chiang Mai Journal of Science, 2017; 44(4): 1379-1391.
Abstract
Latex proteins have been previously characterized in various plants including their indispensable roles. However, latex protein profiles are not well defined in Jatropha, neither of toxic nor non-toxic varieties. To compare the protein profiles between toxic and non-toxic latex we employed a proteomic approach using one-dimensional gel electrophoresis in conjunction with LC-MS/MS. Proteomic analysis of Jatropha latex revealed 421 proteins, of which 368 were shared between the two varieties. Functional classification showed that the most abundant proteins in both toxic and non-toxic Jatropha latex were related to cellular and metabolic processes, while some were associated with immune system processes. Furthermore, some unique proteins were classified as defense-related highlighting the special role of latex in the defense mechanism of Jatropha. Finally, we identified proteins belonging to the phenylpropanoid, carotenoid and flavonoid biosynthesis pathways. To the extent of our knowledge, this study provides the first comprehensive proteomic data for Jatropha latex.
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