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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 |
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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 |
UTAS Author: | Reid, JB (Professor Jim Reid) |
ID Code: | 79465 |
Year Published: | 2013 |
Funding Support: | Australian Research Council (DP110102085) |
Web of Science® Times Cited: | 40 |
Deposited By: | Plant Science |
Deposited On: | 2012-09-13 |
Last Modified: | 2015-06-26 |
Downloads: | 3 View Download Statistics |
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