Ethanol production and mitochondrial-related gene expression of maize (Zea mays) seed during storage

Mitochondrial degradation plays a vital role in seed deterioration. Novel markers were investigated based on a new method for quantifying maize seed deterioration during 12 months’ storage under ambient (lab bench, ~27°C and 50–80% relative humidity (RH)) or controlled ((15±1)°C and (50±5)% RH in ba...

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Main Authors: Chalisa Chaengsakul, Damrongvudhi Onwimol, Pasajee Kongsil, Sawita Suwannarat
Format: Article
Language:English
Published: Elsevier 2019-11-01
Series:Journal of Integrative Agriculture
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S209531191962558X
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author Chalisa Chaengsakul
Damrongvudhi Onwimol
Pasajee Kongsil
Sawita Suwannarat
author_facet Chalisa Chaengsakul
Damrongvudhi Onwimol
Pasajee Kongsil
Sawita Suwannarat
author_sort Chalisa Chaengsakul
collection DOAJ
description Mitochondrial degradation plays a vital role in seed deterioration. Novel markers were investigated based on a new method for quantifying maize seed deterioration during 12 months’ storage under ambient (lab bench, ~27°C and 50–80% relative humidity (RH)) or controlled ((15±1)°C and (50±5)% RH in bags with low oxygen permeability) conditions involving two techniques: 1) fast ethanol assay and 2) quantitative RT-PCR (qPCR) with four mitochondrial-related genes in maize seed: alcohol dehydrogenase (ADH1), alternative oxidase (AOX1), cytochrome c oxidase (COXc), and ATPase. Ethanol production during imbibition and the expression of genes using the new method were compared to the results of two conventional methods: a germination test and an accelerated ageing test. The results showed that germination following ambient seed storage reduced significantly compared to the controlled conditions, especially at 9 months of storage. Ethanol production of maize seed measured by fast ethanol assay increased during storage. After 6 months, the mean (n=4) ethanol production from seed under ambient conditions was 400 µg L–1 which was higher than under the controlled conditions (240 µg L–1). Stored mRNA level of COXc and ATPase significantly decreased over time in ambient storage but were quite stable under the controlled conditions. Maize seed was also treated for artificial ageing at 42°C in 100% RH for 12, 24, and 48 h. At 24 h after treatment (HAT), maize seed produced significantly more headspace ethanol than at 12 HAT and more than the control (non-treated seed). The transcription level of ADH1 and ethanol production increased. The transcription level of COXc was directly related to the severity of the ageing treatment. In conclusion, a combination of fast ethanol assay and qPCR enhanced understanding of maize seed deterioration and provided new possibilities for the evaluation of seed storability based on transcriptional levels.
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spelling doaj.art-d8331b6d6022422abd986570141c235e2022-12-21T22:30:31ZengElsevierJournal of Integrative Agriculture2095-31192019-11-01181124352445Ethanol production and mitochondrial-related gene expression of maize (Zea mays) seed during storageChalisa Chaengsakul0Damrongvudhi Onwimol1Pasajee Kongsil2Sawita Suwannarat3Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand; Center for Agricultural Biotechnology, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 10900, Thailand; Center of Excellence on Agricultural Biotechnology, Science and Technology Postgraduate Education and Research Development Office, Commission on Higher Education, Ministry of Education, Bangkok 10900, ThailandDepartment of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand; Center for Agricultural Biotechnology, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 10900, Thailand; Center of Excellence on Agricultural Biotechnology, Science and Technology Postgraduate Education and Research Development Office, Commission on Higher Education, Ministry of Education, Bangkok 10900, Thailand; Correspondence Damrongvudhi Onwimol, Tel: +66-2-65576151Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, ThailandDepartment of Plant Pathology, Faculty of Agriculture, Kasetsart University, Bangkok 10900, ThailandMitochondrial degradation plays a vital role in seed deterioration. Novel markers were investigated based on a new method for quantifying maize seed deterioration during 12 months’ storage under ambient (lab bench, ~27°C and 50–80% relative humidity (RH)) or controlled ((15±1)°C and (50±5)% RH in bags with low oxygen permeability) conditions involving two techniques: 1) fast ethanol assay and 2) quantitative RT-PCR (qPCR) with four mitochondrial-related genes in maize seed: alcohol dehydrogenase (ADH1), alternative oxidase (AOX1), cytochrome c oxidase (COXc), and ATPase. Ethanol production during imbibition and the expression of genes using the new method were compared to the results of two conventional methods: a germination test and an accelerated ageing test. The results showed that germination following ambient seed storage reduced significantly compared to the controlled conditions, especially at 9 months of storage. Ethanol production of maize seed measured by fast ethanol assay increased during storage. After 6 months, the mean (n=4) ethanol production from seed under ambient conditions was 400 µg L–1 which was higher than under the controlled conditions (240 µg L–1). Stored mRNA level of COXc and ATPase significantly decreased over time in ambient storage but were quite stable under the controlled conditions. Maize seed was also treated for artificial ageing at 42°C in 100% RH for 12, 24, and 48 h. At 24 h after treatment (HAT), maize seed produced significantly more headspace ethanol than at 12 HAT and more than the control (non-treated seed). The transcription level of ADH1 and ethanol production increased. The transcription level of COXc was directly related to the severity of the ageing treatment. In conclusion, a combination of fast ethanol assay and qPCR enhanced understanding of maize seed deterioration and provided new possibilities for the evaluation of seed storability based on transcriptional levels.http://www.sciencedirect.com/science/article/pii/S209531191962558Xethanolstored mRNA levelanaerobic respirationartificial ageingZea mays
spellingShingle Chalisa Chaengsakul
Damrongvudhi Onwimol
Pasajee Kongsil
Sawita Suwannarat
Ethanol production and mitochondrial-related gene expression of maize (Zea mays) seed during storage
Journal of Integrative Agriculture
ethanol
stored mRNA level
anaerobic respiration
artificial ageing
Zea mays
title Ethanol production and mitochondrial-related gene expression of maize (Zea mays) seed during storage
title_full Ethanol production and mitochondrial-related gene expression of maize (Zea mays) seed during storage
title_fullStr Ethanol production and mitochondrial-related gene expression of maize (Zea mays) seed during storage
title_full_unstemmed Ethanol production and mitochondrial-related gene expression of maize (Zea mays) seed during storage
title_short Ethanol production and mitochondrial-related gene expression of maize (Zea mays) seed during storage
title_sort ethanol production and mitochondrial related gene expression of maize zea mays seed during storage
topic ethanol
stored mRNA level
anaerobic respiration
artificial ageing
Zea mays
url http://www.sciencedirect.com/science/article/pii/S209531191962558X
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AT damrongvudhionwimol ethanolproductionandmitochondrialrelatedgeneexpressionofmaizezeamaysseedduringstorage
AT pasajeekongsil ethanolproductionandmitochondrialrelatedgeneexpressionofmaizezeamaysseedduringstorage
AT sawitasuwannarat ethanolproductionandmitochondrialrelatedgeneexpressionofmaizezeamaysseedduringstorage