Hydrogen Gas Improves Seed Germination in Cucumber by Regulating Sugar and Starch Metabolisms

Hydrogen gas (H<sub>2</sub>), an important gaseous regulator, is involved in various plant growth and development processes. However, there have been few studies on the role of H<sub>2</sub> in seed germination. In this study, the role and underlying mechanisms of H<sub>...

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Autores principales: Panpan Huang, Changxia Li, Huwei Liu, Zongxi Zhao, Weibiao Liao
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Lenguaje:EN
Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:3054f52485074e4cb4419124f447b2b72021-11-25T17:47:19ZHydrogen Gas Improves Seed Germination in Cucumber by Regulating Sugar and Starch Metabolisms10.3390/horticulturae71104562311-7524https://doaj.org/article/3054f52485074e4cb4419124f447b2b72021-11-01T00:00:00Zhttps://www.mdpi.com/2311-7524/7/11/456https://doaj.org/toc/2311-7524Hydrogen gas (H<sub>2</sub>), an important gaseous regulator, is involved in various plant growth and development processes. However, there have been few studies on the role of H<sub>2</sub> in seed germination. In this study, the role and underlying mechanisms of H<sub>2</sub> in enhancing seed germination were investigated in cucumber (<i>Cucumis sativus</i> L.). The results revealed that the germination rate, germ length, germination index, and vitality index of cucumber exhibited a dose-dependent relationship with the increase in concentrations of hydrogen-rich water (HRW, a H<sub>2</sub> donor; 0, 1, 10, 25, 50, 75, and 100%), attaining the maximum values with 75% HRW treatment. Treatment with 75% HRW resulted in higher contents of soluble sugar, soluble protein, and starch than the control. Additionally, the activity of α-amylase, β-amylase, and total amylase was significantly improved by 75% HRW treatment compared to the control, reaching the maximum values at 36 h. Moreover, the expression levels of starch-related genes <i>AMY</i> and <i>BMY</i> and sugar-related genes <i>SS4</i> and <i>SS3</i> were significantly upregulated by 75% HRW treatment during germination, particularly at 36 h. These results suggest that H<sub>2</sub> might promote cucumber seed germination by increasing sugar and starch metabolisms.Panpan HuangChangxia LiHuwei LiuZongxi ZhaoWeibiao LiaoMDPI AGarticlehydrogen-rich water (HRW)carbohydrateα-amylaseβ-amylasegene expressionseed germinationPlant cultureSB1-1110ENHorticulturae, Vol 7, Iss 456, p 456 (2021)
institution DOAJ
collection DOAJ
language EN
topic hydrogen-rich water (HRW)
carbohydrate
α-amylase
β-amylase
gene expression
seed germination
Plant culture
SB1-1110
spellingShingle hydrogen-rich water (HRW)
carbohydrate
α-amylase
β-amylase
gene expression
seed germination
Plant culture
SB1-1110
Panpan Huang
Changxia Li
Huwei Liu
Zongxi Zhao
Weibiao Liao
Hydrogen Gas Improves Seed Germination in Cucumber by Regulating Sugar and Starch Metabolisms
description Hydrogen gas (H<sub>2</sub>), an important gaseous regulator, is involved in various plant growth and development processes. However, there have been few studies on the role of H<sub>2</sub> in seed germination. In this study, the role and underlying mechanisms of H<sub>2</sub> in enhancing seed germination were investigated in cucumber (<i>Cucumis sativus</i> L.). The results revealed that the germination rate, germ length, germination index, and vitality index of cucumber exhibited a dose-dependent relationship with the increase in concentrations of hydrogen-rich water (HRW, a H<sub>2</sub> donor; 0, 1, 10, 25, 50, 75, and 100%), attaining the maximum values with 75% HRW treatment. Treatment with 75% HRW resulted in higher contents of soluble sugar, soluble protein, and starch than the control. Additionally, the activity of α-amylase, β-amylase, and total amylase was significantly improved by 75% HRW treatment compared to the control, reaching the maximum values at 36 h. Moreover, the expression levels of starch-related genes <i>AMY</i> and <i>BMY</i> and sugar-related genes <i>SS4</i> and <i>SS3</i> were significantly upregulated by 75% HRW treatment during germination, particularly at 36 h. These results suggest that H<sub>2</sub> might promote cucumber seed germination by increasing sugar and starch metabolisms.
format article
author Panpan Huang
Changxia Li
Huwei Liu
Zongxi Zhao
Weibiao Liao
author_facet Panpan Huang
Changxia Li
Huwei Liu
Zongxi Zhao
Weibiao Liao
author_sort Panpan Huang
title Hydrogen Gas Improves Seed Germination in Cucumber by Regulating Sugar and Starch Metabolisms
title_short Hydrogen Gas Improves Seed Germination in Cucumber by Regulating Sugar and Starch Metabolisms
title_full Hydrogen Gas Improves Seed Germination in Cucumber by Regulating Sugar and Starch Metabolisms
title_fullStr Hydrogen Gas Improves Seed Germination in Cucumber by Regulating Sugar and Starch Metabolisms
title_full_unstemmed Hydrogen Gas Improves Seed Germination in Cucumber by Regulating Sugar and Starch Metabolisms
title_sort hydrogen gas improves seed germination in cucumber by regulating sugar and starch metabolisms
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/3054f52485074e4cb4419124f447b2b7
work_keys_str_mv AT panpanhuang hydrogengasimprovesseedgerminationincucumberbyregulatingsugarandstarchmetabolisms
AT changxiali hydrogengasimprovesseedgerminationincucumberbyregulatingsugarandstarchmetabolisms
AT huweiliu hydrogengasimprovesseedgerminationincucumberbyregulatingsugarandstarchmetabolisms
AT zongxizhao hydrogengasimprovesseedgerminationincucumberbyregulatingsugarandstarchmetabolisms
AT weibiaoliao hydrogengasimprovesseedgerminationincucumberbyregulatingsugarandstarchmetabolisms
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