Effects of chlorine dioxide fumigation on redox balancing potential of antioxidative ascorbate-glutathione cycle in ‘Daw’ longan fruit during storage

© 2017 Elsevier B.V. Redox status in ascorbate-glutathione (ASA-GSH) cycle plays a pivotal role in plant responses to physiological and environmental changes. The change of ASA-GSH redox potential is associate with oxidative stress leading to plant senescence. The present study was aimed to investig...

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Main Authors: Chumyam A., Shank L., Faiyue B., Uthaibutra J., Saengnil K.
Format: Journal
Published: 2017
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85019160145&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/40166
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spelling th-cmuir.6653943832-401662017-09-28T04:08:05Z Effects of chlorine dioxide fumigation on redox balancing potential of antioxidative ascorbate-glutathione cycle in ‘Daw’ longan fruit during storage Chumyam A. Shank L. Faiyue B. Uthaibutra J. Saengnil K. © 2017 Elsevier B.V. Redox status in ascorbate-glutathione (ASA-GSH) cycle plays a pivotal role in plant responses to physiological and environmental changes. The change of ASA-GSH redox potential is associate with oxidative stress leading to plant senescence. The present study was aimed to investigate the effects of gaseous ClO 2 on the redox status involved in delaying fruit senescence during storage of harvested longan fruit (Dimocarpus longan Lour. cv. Daw). Fresh longan fruit were fumigated with 10 mg/L ClO 2 for 10 min, packed into cardboard boxes and stored at room temperature for 7 d. The results show that redox status of the fruit determined by ASA/DHA, GSH/GSSG and NADPH/NADP ratios decreased steadily in ClO 2 untreated control group during storage. On the contrary, those ratios increased immediately after ClO 2 treatment before declining steadily afterwards. The activities of NADPH-generating dehydrogenases including glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase, and ASA-GSH cycle enzymes including ascorbate peroxidase, monodehydroascorbate reductase, dehydroascorbate reductase and glutathione reductase were upregulated upon the ClO 2 treatment and remained stable for a few days. ClO 2 treatment decreased hydrogen peroxide content and fruit senescence index, including browning and disease symptoms in pericarp during storage. It was concluded that the imbalance of redox status of ASA-GSH cascade involved senescence in ‘Daw’ longan, and ClO 2 could maintain the redox balance, leading to the alleviation and delay fruit senescence. 2017-09-28T04:08:05Z 2017-09-28T04:08:05Z Journal 03044238 2-s2.0-85019160145 10.1016/j.scienta.2017.05.022 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85019160145&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/40166
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description © 2017 Elsevier B.V. Redox status in ascorbate-glutathione (ASA-GSH) cycle plays a pivotal role in plant responses to physiological and environmental changes. The change of ASA-GSH redox potential is associate with oxidative stress leading to plant senescence. The present study was aimed to investigate the effects of gaseous ClO 2 on the redox status involved in delaying fruit senescence during storage of harvested longan fruit (Dimocarpus longan Lour. cv. Daw). Fresh longan fruit were fumigated with 10 mg/L ClO 2 for 10 min, packed into cardboard boxes and stored at room temperature for 7 d. The results show that redox status of the fruit determined by ASA/DHA, GSH/GSSG and NADPH/NADP ratios decreased steadily in ClO 2 untreated control group during storage. On the contrary, those ratios increased immediately after ClO 2 treatment before declining steadily afterwards. The activities of NADPH-generating dehydrogenases including glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase, and ASA-GSH cycle enzymes including ascorbate peroxidase, monodehydroascorbate reductase, dehydroascorbate reductase and glutathione reductase were upregulated upon the ClO 2 treatment and remained stable for a few days. ClO 2 treatment decreased hydrogen peroxide content and fruit senescence index, including browning and disease symptoms in pericarp during storage. It was concluded that the imbalance of redox status of ASA-GSH cascade involved senescence in ‘Daw’ longan, and ClO 2 could maintain the redox balance, leading to the alleviation and delay fruit senescence.
format Journal
author Chumyam A.
Shank L.
Faiyue B.
Uthaibutra J.
Saengnil K.
spellingShingle Chumyam A.
Shank L.
Faiyue B.
Uthaibutra J.
Saengnil K.
Effects of chlorine dioxide fumigation on redox balancing potential of antioxidative ascorbate-glutathione cycle in ‘Daw’ longan fruit during storage
author_facet Chumyam A.
Shank L.
Faiyue B.
Uthaibutra J.
Saengnil K.
author_sort Chumyam A.
title Effects of chlorine dioxide fumigation on redox balancing potential of antioxidative ascorbate-glutathione cycle in ‘Daw’ longan fruit during storage
title_short Effects of chlorine dioxide fumigation on redox balancing potential of antioxidative ascorbate-glutathione cycle in ‘Daw’ longan fruit during storage
title_full Effects of chlorine dioxide fumigation on redox balancing potential of antioxidative ascorbate-glutathione cycle in ‘Daw’ longan fruit during storage
title_fullStr Effects of chlorine dioxide fumigation on redox balancing potential of antioxidative ascorbate-glutathione cycle in ‘Daw’ longan fruit during storage
title_full_unstemmed Effects of chlorine dioxide fumigation on redox balancing potential of antioxidative ascorbate-glutathione cycle in ‘Daw’ longan fruit during storage
title_sort effects of chlorine dioxide fumigation on redox balancing potential of antioxidative ascorbate-glutathione cycle in ‘daw’ longan fruit during storage
publishDate 2017
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85019160145&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/40166
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