Document Detail


Effect of 1-methylcyclopropene post-harvest treatment on ripening process in cherry tomato fruit (Lycopersicon esculentum var. cerasiforme).
MedLine Citation:
PMID:  15692175     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The responses of cherry tomato (Lycopersicon esculentum var. cerasiforme) fruits to post-harvest treatment with 1-MCP were investigated. The maturity stage at which 1-MCP application is most effective in delaying the ripening process was determined, and then the effects of different concentrations (0, 0.035, 0.07 and 0.11 microL/L) of 1-MCP on ethylene production, fruit softening, chlorophyll, lycopene and carotenoids contents of mature green (MG) cherry tomato fruits were assessed. 1-MCP at 0.07 and 0.11 microL/L reduced fruit C(2)H(4) production, delayed the C(2)H(4) peak at ambient temperature. Although 1-MCP at 0.035 microL/L was effective in retarding fruit ripening, it did not suppress endogenous ethylene production. Fruit softening was suppressed by 1-MCP, but its initiation was not affected by 1-MCP. The rate of chlorophyll degradation and its pattern of change with time, and the initiation of lycopene biosynthesis as well as its accumulation were all affected by 1-MCP, but only the accumulation of carotenoids was suppressed. Accumulation of lycopene and carotenoids was almost permanently hampered by 1-MCP at 0.07 microL/L or higher concentrations, and fruit color could not reach the control level even 2 weeks after 1-MCP treatment, indicating the close association of the metabolism of these pigments with ethylene perception. Since the concentration of 0.11 microL/L of 1-MCP was so high that it did not elicit additional response very much than 0.07 microL/L, these concentrations were considered to be practically effective concentrations for cherry tomato at MG stage. The effective 1-MCP concentrations might provide a useful reference to the levels of ethylene receptors as well as ethylene sensitivity in a specific fruit at given development stage.
Authors:
Arnold M Opiyo; Tie-Jin Ying
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Zhi wu sheng li yu fen zi sheng wu xue xue bao = Journal of plant physiology and molecular biology     Volume:  31     ISSN:  1671-3877     ISO Abbreviation:  Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2005-02-04     Completed Date:  2009-03-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101156321     Medline TA:  Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao     Country:  China    
Other Details:
Languages:  eng     Pagination:  27-33     Citation Subset:  IM    
Affiliation:
Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310029, China.
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MeSH Terms
Descriptor/Qualifier:
Carotenoids / metabolism
Chlorophyll / metabolism
Cyclopropanes / pharmacology*
Ethylenes / metabolism
Fruit / drug effects*,  growth & development,  metabolism,  physiology
Lycopersicon esculentum / drug effects*,  growth & development,  metabolism
Time Factors
Chemical
Reg. No./Substance:
0/Cyclopropanes; 0/Ethylenes; 1406-65-1/Chlorophyll; 3100-04-7/1-methylcyclopropene; 36-88-4/Carotenoids; 502-65-8/lycopene; 74-85-1/ethylene

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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