Journal
JOURNAL OF PROTEOMICS
Volume 75, Issue 7, Pages 2160-2169Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jprot.2012.01.015
Keywords
Carica papaya L.; LC/ESI-MS/MS; Two-dimensional electrophoresis; Ripening; 1-Methylcyclopropene
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Funding
- CONACYT-MEXICO [56787, 204127]
- [FOMIX-Colima-2008-C01-8170]
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Papaya (Carica papaya L.) is a climacteric fruit susceptible to postharvest losses due to the ethylene-induced ripening. The inhibitor of ethylene action, 1-methylcyclopropene (1-MCP), has been used worldwide as a safe postharvest non-toxic agent, but the physiological and biochemical modifications induced by 1-MCP are not well understood. Using the 2-DE analysis, we report the changes in the protein profiles after 6 and 18 days of postharvest and the effect of the effect of 1-MCP treatment on fruits. Twenty seven protein spots showing differences in abundance during ripening were successfully identified by nano-LC-ESI/MS/MS. Some spots corresponded to the cell wall degrading enzymes related to fruit ripening; others were involved in oxidative damage protection, protein folding, and cell growth and survival that were induced by 1-MCP. This is the first proteomic report analyzing the effect of 1-MCP in papaya ripening. The present data will help to shed light on papaya fruit ripening process. (C) 2012 Elsevier B.V. All rights reserved.
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