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Treatments that suppress ethylene production or ethylene action modify ADH and AAT gene expression and aroma-related enzyme activities in 'Delbarde Estivale' apple: consequences for the aroma profiles of fruit

Jamil Harb, Isabel Lara, Omar Saleh, Josef Streif and Basel Khraiwesh UGent (2011) JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY. 86(2). p.182-188
abstract
The effects of aminoethoxyvinylglycine (AVG; ReTain®) and 1-methylcyclopropene (1-MCP; SmartFreshTM) on the biosynthesis of aroma volatiles and overall quality in ‘Delbarde Estivale’, an early apple variety, are reported for the first time. Apple fruit were treated with AVG 3 weeks before commercial harvest, following standard procedures. 1-MCP was applied directly after harvest. Treated and untreated fruit were kept at room temperature and analysed periodically thereafter.The results indicated that both ethylene-suppressing treatments improved fruit firmness, total acidity, and preserved skin colour during shelf-life. However, both treatments had a negative impact on the biosynthesis of aroma volatiles, a major quality attribute for the sensory quality of apples.The production of straightchain esters was particularly affected. The activities of lipoxygenase (LOX), alcohol dehydrogenase (ADH), and pyruvate decarboxylase (PDC) were reduced by both treatments, in some instances to values well below 50% of those in untreated controls; whereas the activity of alcohol o-acyltransferase (AAT) was higher in 1-MCP-treated fruit. Measuring the levels of expression of the genes encoding ADH and AAT confirmed these results and the importance of an adequate supply of substrates for the biosynthesis of volatile esters in apple fruit.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
VOLATILE PRODUCTION, HYDROPEROXIDE LYASE, FLAVOR COMPOUNDS, BIOSYNTHESIS, ESTERS, STRAWBERRY, STORAGE, COMPLEX
journal title
JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY
J. Hortic. Sci. Biotechnol.
volume
86
issue
2
pages
182 - 188
Web of Science type
Article
Web of Science id
000289661100015
JCR category
HORTICULTURE
JCR impact factor
0.637 (2011)
JCR rank
18/31 (2011)
JCR quartile
3 (2011)
ISSN
1462-0316
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1191819
handle
http://hdl.handle.net/1854/LU-1191819
date created
2011-03-18 20:10:53
date last changed
2016-12-19 15:45:50
@article{1191819,
  abstract     = {The effects of aminoethoxyvinylglycine (AVG; ReTain{\textregistered}) and 1-methylcyclopropene (1-MCP; SmartFreshTM) on the biosynthesis of aroma volatiles and overall quality in {\textquoteleft}Delbarde Estivale{\textquoteright}, an early apple variety, are reported for the first time. Apple fruit were treated with AVG 3 weeks before commercial harvest, following standard procedures. 1-MCP was applied directly after harvest. Treated and untreated fruit were kept at room temperature and analysed periodically thereafter.The results indicated that both ethylene-suppressing treatments improved fruit firmness, total acidity, and preserved skin colour during shelf-life. However, both treatments had a negative impact on the biosynthesis of aroma volatiles, a major quality attribute for the sensory quality of apples.The production of straightchain esters was particularly affected. The activities of lipoxygenase (LOX), alcohol dehydrogenase (ADH), and pyruvate decarboxylase (PDC) were reduced by both treatments, in some instances to values well below 50\% of those in untreated controls; whereas the activity of alcohol o-acyltransferase (AAT) was higher in 1-MCP-treated fruit. Measuring the levels of expression of the genes encoding ADH and AAT confirmed these results and the importance of an adequate supply of substrates for the biosynthesis of volatile esters in apple fruit.},
  author       = {Harb, Jamil and  Lara, Isabel and Saleh, Omar and Streif, Josef and Khraiwesh, Basel},
  issn         = {1462-0316},
  journal      = {JOURNAL OF HORTICULTURAL SCIENCE \& BIOTECHNOLOGY},
  keyword      = {VOLATILE PRODUCTION,HYDROPEROXIDE LYASE,FLAVOR COMPOUNDS,BIOSYNTHESIS,ESTERS,STRAWBERRY,STORAGE,COMPLEX},
  language     = {eng},
  number       = {2},
  pages        = {182--188},
  title        = {Treatments that suppress ethylene production or ethylene action modify ADH and AAT gene expression and aroma-related enzyme activities in 'Delbarde Estivale' apple: consequences for the aroma profiles of fruit},
  volume       = {86},
  year         = {2011},
}

Chicago
Harb, Jamil, Isabel Lara, Omar Saleh, Josef Streif, and Basel Khraiwesh. 2011. “Treatments That Suppress Ethylene Production or Ethylene Action Modify ADH and AAT Gene Expression and Aroma-related Enzyme Activities in ‘Delbarde Estivale’ Apple: Consequences for the Aroma Profiles of Fruit.” Journal of Horticultural Science & Biotechnology 86 (2): 182–188.
APA
Harb, J., Lara, I., Saleh, O., Streif, J., & Khraiwesh, B. (2011). Treatments that suppress ethylene production or ethylene action modify ADH and AAT gene expression and aroma-related enzyme activities in “Delbarde Estivale” apple: consequences for the aroma profiles of fruit. JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY, 86(2), 182–188.
Vancouver
1.
Harb J, Lara I, Saleh O, Streif J, Khraiwesh B. Treatments that suppress ethylene production or ethylene action modify ADH and AAT gene expression and aroma-related enzyme activities in “Delbarde Estivale” apple: consequences for the aroma profiles of fruit. JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY. 2011;86(2):182–8.
MLA
Harb, Jamil, Isabel Lara, Omar Saleh, et al. “Treatments That Suppress Ethylene Production or Ethylene Action Modify ADH and AAT Gene Expression and Aroma-related Enzyme Activities in ‘Delbarde Estivale’ Apple: Consequences for the Aroma Profiles of Fruit.” JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY 86.2 (2011): 182–188. Print.