Journal
POSTHARVEST BIOLOGY AND TECHNOLOGY
Volume 59, Issue 1, Pages 1-9Publisher
ELSEVIER
DOI: 10.1016/j.postharvbio.2010.08.001
Keywords
Pears; Ripening control; ACO; ACS; Gene expression; 1-MCP
Categories
Funding
- California Pear Advisory Board and AgroFresh
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To further our understanding of the response of 'Bartlett' pear fruit to 1-methylcyclopropene (1-MCP) and their ability to recover the capacity to ripen, 'Bartlett' pears were treated with 0.3 mu LL-1 1-MCP for 12h at 20 degrees C immediately after harvest in two seasons and to pear fruit of four maturities. 1-MCP decreased rates of softening, ethylene production, respiration, and yellow color development, and reduced incidence of scald and internal breakdown. Ripening recovery induced by cold storage of 1-MCP treated fruit depended on maturity and season and was associated with stimulated ethylene production, including 1-aminocyclopropene carboxylic acid synthase (ACS) activity, 1-aminocyclopropene carboxylic acid oxidase (ACO) activity, and transcript levels of genes associated with these enzymes. (C) 2010 Elsevier B.V. All rights reserved.
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