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Mode of action of abscisic acid in triggering ethylene biosynthesis and softening during ripening in mango fruit

Citation

Zaharah, SS and Singh, Z and Symons, GM and Reid, JB, Mode of action of abscisic acid in triggering ethylene biosynthesis and softening during ripening in mango fruit, Postharvest Biology and Technology, 75 pp. 37-44. ISSN 0925-5214 (2013) [Refereed Article]

Copyright Statement

Copyright 2012 Elsevier

DOI: doi:10.1016/j.postharvbio.2012.07.009

Abstract

The role of abscisic acid (ABA) in triggering ethylene biosynthesis and ripening of mango fruit was investigated by applying ABA [S-(+)-cis,trans-abscisic acid] and an inhibitor of its biosynthesis [nordihydroguaiaretic acid (NDGA)]. Application of 1 mM ABA accelerated ethylene biosynthesis through promoting the activities of ethylene biosynthesis enzymes (1-aminocyclopropane-1-carboxylic acid synthase, ACS; 1-aminocyclopropane-1-carboxylic acid oxidase, ACO) and accumulation of 1-aminocyclopropane-1-carboxylic acid (ACC), enhanced fruit softening and activity of endo-polygalacturonase and reduced pectin esterase activity in the pulp. The activities of ethylene biosynthesis and softening enzymes were significantly delayed and/or suppressed in the pulp of NDGA-treated fruit. The ABA-treated fruit had higher total sugars and sucrose as well as degradation of total organic acids, and citric and fumaric acids compared with NDGA treatment. These results suggest that ABA is involved in regulating mango fruit ripening and its effects are, at least in part, mediated by changes in ethylene production.

Item Details

Item Type:Refereed Article
Keywords:mango, ethylene, abscisic acid
Research Division:Biological Sciences
Research Group:Plant Biology
Research Field:Plant Physiology
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Environmental Sciences
Author:Reid, JB (Professor Jim Reid)
ID Code:79465
Year Published:2013
Funding Support:Australian Research Council (DP110102085)
Web of Science® Times Cited:19
Deposited By:Plant Science
Deposited On:2012-09-13
Last Modified:2015-06-26
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