Pre-harvest Application of Putrescine Influences Japanese Plum Fruit Ripening and Quality

To investigate the role of pre-harvest application of putrescine (PUT) in regulating fruit ripening and quality of early-, mid- and late-season maturing Japanese plum fruit, whole trees were sprayed with an aqueous solution containing PUT (0, 0.1, 1.0 and 2.0 mM) one week before anticipated commerci...

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Main Authors: Khan, Ahmad, Singh, Zora
Format: Journal Article
Published: Sage Publications 2010
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/22480
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author Khan, Ahmad
Singh, Zora
author_facet Khan, Ahmad
Singh, Zora
author_sort Khan, Ahmad
building Curtin Institutional Repository
collection Online Access
description To investigate the role of pre-harvest application of putrescine (PUT) in regulating fruit ripening and quality of early-, mid- and late-season maturing Japanese plum fruit, whole trees were sprayed with an aqueous solution containing PUT (0, 0.1, 1.0 and 2.0 mM) one week before anticipated commercial harvest for each cultivar separately. The PUT (2.0 mM) treatment reduced the respiration rate and ethylene production more than untreated fruit during fruit ripening at ambient temperature (20±1 °C). Activities of ACS and ACO enzymes, and ACC content were delayed and suppressed in all plum cultivars and these effects were more pronounced with higher PUT concentrations. PUT application reduced the fruit softening, soluble solids content, titratable acidity ratio, the levels of ascorbic acid, total carotenoids and total antioxidants in all plum cultivars. ‘Black Amber’ did not exhibit any change in fruit color parameters, while, PUT application to ‘Amber Jewel’ and ‘Angelino’ fruit, delayed the changes in chroma value and hue angle during fruit ripening. In conclusion, pre-harvest application of 2.0 mM PUT delayed the fruit ripening with reduced respiration rate, ethylene production, activities of ACS and ACO enzymes, ACC content, fruit softening, levels of ascorbic acid, total carotenoids and total antioxidants in Japanese plum.
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spelling curtin-20.500.11937-224802017-09-13T15:57:56Z Pre-harvest Application of Putrescine Influences Japanese Plum Fruit Ripening and Quality Khan, Ahmad Singh, Zora putrescine Prunus salicina Lindl total antioxidants ascorbic acid quality total carotenoids enzymes To investigate the role of pre-harvest application of putrescine (PUT) in regulating fruit ripening and quality of early-, mid- and late-season maturing Japanese plum fruit, whole trees were sprayed with an aqueous solution containing PUT (0, 0.1, 1.0 and 2.0 mM) one week before anticipated commercial harvest for each cultivar separately. The PUT (2.0 mM) treatment reduced the respiration rate and ethylene production more than untreated fruit during fruit ripening at ambient temperature (20±1 °C). Activities of ACS and ACO enzymes, and ACC content were delayed and suppressed in all plum cultivars and these effects were more pronounced with higher PUT concentrations. PUT application reduced the fruit softening, soluble solids content, titratable acidity ratio, the levels of ascorbic acid, total carotenoids and total antioxidants in all plum cultivars. ‘Black Amber’ did not exhibit any change in fruit color parameters, while, PUT application to ‘Amber Jewel’ and ‘Angelino’ fruit, delayed the changes in chroma value and hue angle during fruit ripening. In conclusion, pre-harvest application of 2.0 mM PUT delayed the fruit ripening with reduced respiration rate, ethylene production, activities of ACS and ACO enzymes, ACC content, fruit softening, levels of ascorbic acid, total carotenoids and total antioxidants in Japanese plum. 2010 Journal Article http://hdl.handle.net/20.500.11937/22480 10.1177/1082013209353242 Sage Publications restricted
spellingShingle putrescine
Prunus salicina Lindl
total antioxidants
ascorbic acid
quality
total carotenoids
enzymes
Khan, Ahmad
Singh, Zora
Pre-harvest Application of Putrescine Influences Japanese Plum Fruit Ripening and Quality
title Pre-harvest Application of Putrescine Influences Japanese Plum Fruit Ripening and Quality
title_full Pre-harvest Application of Putrescine Influences Japanese Plum Fruit Ripening and Quality
title_fullStr Pre-harvest Application of Putrescine Influences Japanese Plum Fruit Ripening and Quality
title_full_unstemmed Pre-harvest Application of Putrescine Influences Japanese Plum Fruit Ripening and Quality
title_short Pre-harvest Application of Putrescine Influences Japanese Plum Fruit Ripening and Quality
title_sort pre-harvest application of putrescine influences japanese plum fruit ripening and quality
topic putrescine
Prunus salicina Lindl
total antioxidants
ascorbic acid
quality
total carotenoids
enzymes
url http://hdl.handle.net/20.500.11937/22480