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Horticulturae
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Uses of Hydrogen Gas in Horticulture
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Uses of Hydrogen Gas in Horticulture

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Developmental Physiology, Biochemistry, and Molecular Biology".

Deadline for manuscript submissions: closed (18 June 2023) | Viewed by 10403

Special Issue Editor

Dr. Hongmei Du

E-Mail Website
Guest Editor
Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: abiotic stress; ornamental plant physiology and molecular biology; hydrogen biology; floriculture; germplasm preservation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Previously, research on the biological effects of H2 mainly focused on medicine. Subsequent experiments discovered that H2 can regulate the growth and development of crops, edible microorganisms, and farm livestock, enhance abiotic and biotic stress tolerance, and improve the nutritional value and postharvest quality of agricultural products. With the method of plant physiology and molecular biology, it was found that the functions of molecular hydrogen were mediated by modulating reactive oxygen species, nitric oxide, and carbon monoxide signaling cascades in plants and microbes. H2 can also regulate the growth and development of crops by changing the soil microbial community composition and structure. Under the condition of global climate change, horticultural crop production is facing more and more serious biotic and abiotic stress. Safe and efficient production is an important issue of concern for horticulturists all over the world. This Special Issue will examine recent advances in uses of hydrogen gas in horticulture that can contribute to increase output and quality of horticultural crops and improve soil texture, also including research of physiological basis and on the molecular mechanism of H2 effects.

Dr. Hongmei Du
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • hydrogen gas
  • hydrogen agronomy
  • gasotransmitters
  • horticultural plants
  • biological effects
  • yield
  • quality
  • soil microbe

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Published Papers (3 papers)

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Research

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17 pages, 2984 KiB  
Article
Effects of Hydrogen-Rich Water on Postharvest Physiology in Scales of Lanzhou Lily during Storage
by Xingjuan Liu, Hua Fang, Panpan Huang, Li Feng, Fujin Ye, Lijuan Wei, Xuetong Wu, Hongsheng Zhang and Weibiao Liao
Horticulturae 2023, 9(2), 156; https://doi.org/10.3390/horticulturae9020156 - 27 Jan 2023
Cited by 3 | Viewed by 1710
Abstract
Hydrogen gas (H2) is considered as a signaling molecule and plays multiple roles in plant growth. However, the effect of H2 on postharvest physiology in lily scales during storage has not been reported. In this study, the regulatory roles of [...] Read more.
Hydrogen gas (H2) is considered as a signaling molecule and plays multiple roles in plant growth. However, the effect of H2 on postharvest physiology in lily scales during storage has not been reported. In this study, the regulatory roles of hydrogen-rich water (HRW, a H2 donor, a concentration of 0.45 mM for 100% HRW) in water status, ion balance, and nutrients in Lanzhou lily (Lilium davidii var. unicolor) scales were investigated. The scales were soaked in HRW for 12 d, and sampling was performed every 3 d for a total of 5 times. The results show that HRW (0, 10, 50, and 100%) increased the fresh weight, dry weight, relative water content, and water loss rate in lily scales, with maximum biological response at 50% HRW. Treatment with 50% HRW significantly increased the K+ content and K+/Na+ ratio in lily scales and decreased Na+ content. The Na+ K+-ATPase, and PM H+-ATPase activities were also increased by 50% HRW treatment. Meanwhile, 50% HRW up-regulated the expression of AKT1 and HA3 genes and down-regulated the expression of NHX2 and SOS1 genes. In addition, 50% HRW treatment significantly increased the expression level of PIP1;5, PIP2A, TIP1;3, and TIP2;2 genes. Treatment with 50% HRW significantly increased the content of water-soluble carbohydrate, sucrose, glucose, and fructose in lily scales, and decreased the content of starch. In addition, 50% HRW treatment significantly increased the activity of α-amylase, β-amylase, total amylase, sucrose synthase, and sucrose phosphate synthase. Collectively, H2 might enhance the water retention capacity and nutrient content in lily scales by maintaining ion balance, regulating aquaporin, and increasing sugar-metabolizing enzyme activity, thereby prolonging the storage period of postharvest scales of Lanzhou lily. Full article
(This article belongs to the Special Issue Uses of Hydrogen Gas in Horticulture)
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17 pages, 3972 KiB  
Article
Hydrogen Gas Improves Seed Germination in Cucumber by Regulating Sugar and Starch Metabolisms
by Panpan Huang, Changxia Li, Huwei Liu, Zongxi Zhao and Weibiao Liao
Horticulturae 2021, 7(11), 456; https://doi.org/10.3390/horticulturae7110456 - 3 Nov 2021
Cited by 18 | Viewed by 2682
Abstract
Hydrogen gas (H2), an important gaseous regulator, is involved in various plant growth and development processes. However, there have been few studies on the role of H2 in seed germination. In this study, the role and underlying mechanisms of H [...] Read more.
Hydrogen gas (H2), an important gaseous regulator, is involved in various plant growth and development processes. However, there have been few studies on the role of H2 in seed germination. In this study, the role and underlying mechanisms of H2 in enhancing seed germination were investigated in cucumber (Cucumis sativus 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 H2 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 AMY and BMY and sugar-related genes SS4 and SS3 were significantly upregulated by 75% HRW treatment during germination, particularly at 36 h. These results suggest that H2 might promote cucumber seed germination by increasing sugar and starch metabolisms. Full article
(This article belongs to the Special Issue Uses of Hydrogen Gas in Horticulture)
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Review

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18 pages, 1489 KiB  
Review
The Applications of Molecular Hydrogen in Horticulture
by Longna Li, Yan Zeng, Xu Cheng and Wenbiao Shen
Horticulturae 2021, 7(11), 513; https://doi.org/10.3390/horticulturae7110513 - 22 Nov 2021
Cited by 13 | Viewed by 4684
Abstract
Improvements in the growth, yield, and quality of horticultural crops require the development of simply integrated, cost-efficient, and eco-friendly solutions. Hydrogen gas (H2) has been observed to have fertilization effects on soils by influencing rhizospheric microorganisms, resulting in improvements in crop [...] Read more.
Improvements in the growth, yield, and quality of horticultural crops require the development of simply integrated, cost-efficient, and eco-friendly solutions. Hydrogen gas (H2) has been observed to have fertilization effects on soils by influencing rhizospheric microorganisms, resulting in improvements in crop yield and quality. Ample studies have shown that H2 has positive effects on horticultural crops, such as promoting root development, enhancing tolerance against abiotic and biotic stress, prolonging storage life, and improving postharvest quality of fruits, vegetables and cut flowers. In this review, we aim to evaluate the feasibility of molecular hydrogen application in horticulture and the strategies for its application, including H2 delivery methods, treatment timing, and the concentration of H2 applied. The discussion will be accompanied by outlining the effects of H2 and the likely mechanisms of its efficacy. In short, the application of H2 may provide novel opportunities for simple and cost efficient improvements of horticultural production in terms of increased yield and product quality but with low carbon dioxide emissions. Full article
(This article belongs to the Special Issue Uses of Hydrogen Gas in Horticulture)
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