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>...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/3054f52485074e4cb4419124f447b2b7 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| Sumario: | 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. |
|---|