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Ethylene suppression modifies gene expression and activity of aroma volatile-related enzymes in 'Delbard Estivale' apples

(2010) Acta Horticulturae. 877. p.1093-1098
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Abstract
The aim of this study was to assess the effect of AVG- and 1-MCP treatment on the postharvest behaviour of ‘Delbarde Estivale’ apple kept at room temperature, with special emphasis on the biosynthesis of odor volatiles. Fruits were harvested at the proper time, and subjected to AVG (ReTain®) treatment 3 weeks before harvest date. Another lot of fruits were treated with 1-MCP. Both treatments had a negative impact on the biosynthesis of odour-volatiles, in particular on ester-type compounds. The activities of lipoxygenase (LOX), alcohol dehydrogenase (ADH), and pyruvate decarboxylase (PDC) were declined by these treatments, whereas the alcohol o-acyltransferase (AAT) activity was higher in 1-MCP treated fruit. Gene expression assessment confirmed these trends. Results confirm the important role of an adequate supply of substrates for the biosynthesis of volatile esters in apple fruit.
Keywords
alcohol dehydrogenase, lipoxygenase, Malus domestica Borkh., pyruvate decarboxylase, 1-MCP, alcohol o-acyltransferase, 'Delbard Estivale', AVG

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Chicago
Harb, Jamil , Isabel Lara, Omar Saleh, Basel Khraiwesh, and J Streif. 2010. “Ethylene Suppression Modifies Gene Expression and Activity of Aroma Volatile-related Enzymes in ‘Delbard Estivale’ Apples.” In Acta Horticulturae, ed. M Erkan and U Aksoy, 877:1093–1098. Leuven, Belgium: International Society for Horticultural Science (ISHS).
APA
Harb, J., Lara, I., Saleh, O., Khraiwesh, B., & Streif, J. (2010). Ethylene suppression modifies gene expression and activity of aroma volatile-related enzymes in “Delbard Estivale” apples. In M. Erkan & U. Aksoy (Eds.), Acta Horticulturae (Vol. 877, pp. 1093–1098). Presented at the 6th International Postharvest Symposium, Leuven, Belgium: International Society for Horticultural Science (ISHS).
Vancouver
1.
Harb J, Lara I, Saleh O, Khraiwesh B, Streif J. Ethylene suppression modifies gene expression and activity of aroma volatile-related enzymes in “Delbard Estivale” apples. In: Erkan M, Aksoy U, editors. Acta Horticulturae. Leuven, Belgium: International Society for Horticultural Science (ISHS); 2010. p. 1093–8.
MLA
Harb, Jamil , Isabel Lara, Omar Saleh, et al. “Ethylene Suppression Modifies Gene Expression and Activity of Aroma Volatile-related Enzymes in ‘Delbard Estivale’ Apples.” Acta Horticulturae. Ed. M Erkan & U Aksoy. Vol. 877. Leuven, Belgium: International Society for Horticultural Science (ISHS), 2010. 1093–1098. Print.
@inproceedings{1084187,
  abstract     = {The aim of this study was to assess the effect of AVG- and 1-MCP treatment on the postharvest behaviour of {\textquoteleft}Delbarde Estivale{\textquoteright} apple kept at room temperature, with special emphasis on the biosynthesis of odor volatiles. Fruits were harvested at the proper time, and subjected to AVG (ReTain{\textregistered}) treatment 3 weeks before harvest date. Another lot of fruits were treated with 1-MCP. Both treatments had a negative impact on the biosynthesis of odour-volatiles, in particular on ester-type compounds. The activities of lipoxygenase (LOX), alcohol dehydrogenase (ADH), and pyruvate decarboxylase (PDC) were declined by these treatments, whereas the alcohol o-acyltransferase (AAT) activity was higher in 1-MCP treated fruit. Gene expression assessment confirmed these trends. Results confirm the important role 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 Khraiwesh, Basel and Streif, J},
  booktitle    = {Acta Horticulturae},
  editor       = {Erkan, M and Aksoy, U},
  isbn         = {9789066056138},
  issn         = {0567-7572},
  keyword      = {alcohol dehydrogenase,lipoxygenase,Malus domestica Borkh.,pyruvate decarboxylase,1-MCP,alcohol o-acyltransferase,'Delbard Estivale',AVG},
  language     = {eng},
  location     = {Antalya, Turkey},
  pages        = {1093--1098},
  publisher    = {International Society for Horticultural Science (ISHS)},
  title        = {Ethylene suppression modifies gene expression and activity of aroma volatile-related enzymes in 'Delbard Estivale' apples},
  url          = {http://www.actahort.org/books/877/877\_148.htm},
  volume       = {877},
  year         = {2010},
}