Influence of harvest time and 1-MCP application on postharvest ripening and ethylene biosynthesis of 'Jonagold' apple

被引：45

作者：

Bulens, I. ^{[1
]}

Van de Poel, B. ^{[1
]}

Hertog, M. L. A. T. M. ^{[1
]}

de Proft, M. P. ^{[2
]}

Geeraerd, A. H. ^{[1
]}

Nicolai, B. M. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Biosyst BIOSYST, Div Mechatron Biostat & Sensors MeBioS, B-3001 Louvain, Belgium

[2] Katholieke Univ Leuven, Dept Biosyst BIOSYST, Div Crop Biotech, B-3001 Louvain, Belgium

来源：

POSTHARVEST BIOLOGY AND TECHNOLOGY | 2012年 / 72卷

关键词：

Jonagold; Malus x domestica; Ethylene; Firmness; Respiration; Controlled atmosphere; GRANNY SMITH APPLES; 1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID; SIGNAL-TRANSDUCTION; DOMESTICA FRUIT; BRAEBURN APPLES; COLD-STORAGE; PULP TISSUES; METHIONINE; MATURATION; METABOLISM;

D O I：

10.1016/j.postharvbio.2012.05.002

中图分类号：

S3 [农学（农艺学）];

学科分类号：

090104 [作物信息科学与技术];

摘要：

Changes in ethylene biosynthesis, respiration and firmness were studied during on-tree ripening, controlled atmosphere (CA) storage and shelf-life of 'Jonagold' apples. Particular attention was paid to the influence of harvest time on subsequent ripening during CA storage and shelf-life and on the effect of treatment with the ethylene inhibitor 1-MCP. The influence of harvest time was most prominent on firmness, with late harvested apples being significantly softer throughout the whole postharvest life. Respiration rate was mainly influenced by the surrounding temperature and air conditions and to a lesser extent by the harvest time. Ethylene production rate depended on harvest time straight after harvest and during storage but this effect disappeared upon movement from storage to shelf-life. When apples were treated with 1-MCP, ethylene biosynthesis was almost completely suppressed throughout the whole postharvest life, with exception of the late harvested apples which regained some ethylene forming capacity after two weeks of shelf-life. A detailed overview of ethylene biosynthesis including the often neglected metabolite S-adenosyl-L-methionine (SAM) was generated. The changes in SAM concentration could not directly be linked to the changes in ethylene production rate as such and SAM was not a limiting factor in apple ethylene biosynthesis during ripening. In vitro 1-aminocyclopropane-1-carboxylate synthase (ACS) and oxidase (ACO) activities were differently affected by CA storage conditions with ACS being the most dominant controlling factor in the biosynthesis of ethylene. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：11 / 19

页数：9

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[2]

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