Application of silicon improves salt tolerance through ameliorating osmotic and ionic stresses in the seedling of Sorghum bicolor

• Autorzy: Yin L. , Wang S. , Li J. , Tanaka K. , Oka M.
• Języki publikacji: EN

Abstrakty

EN

Silicon has been widely reported to have a beneficial effect on improving plant tolerance to biotic and abiotic stresses. However, the mechanisms of silicon in mediating stress responses are still poorly understood. Sorghum is classified as a silicon accumulator and is relatively sensitive to salt stress. In this study, we investigated the short-term application of silicon on growth, osmotic adjustment and ion accumulation in sorghum (Sorghum bicolor L. Moench) under salt stress. The application of silicon alone had no effects upon sorghum growth, while it partly reversed the salt-induced reduction in plant growth and photosynthesis. Meanwhile, the osmotic potential was lower and the turgor pressure was higher than that without silicon application under salt stress. The osmolytes, the sucrose and fructose levels, but not the proline, were significantly increased, as well as Na+ concentration was decreased in silicon-treated plants under salt stress. These results suggest that the beneficial effects of silicon on improving salt tolerance under short-term treatment are attributed to the alleviating of salt-induced osmotic stress and as well as ionic stress simultaneously.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2013
• Tom: 35
• Numer: 11
• Opis fizyczny: p.3099-3107,fig.,ref.

Twórcy

autor

Yin L.

• State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Xinong Road No. 26, Yangling 712100, Shaanxi, China
• Faculty of Agriculture, Tottori University, Koyama, Minami, 4-101, Tottori 680-8553, Japan

autor

Wang S.

• State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Xinong Road No. 26, Yangling 712100, Shaanxi, China
• College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, Shaanxi, China

autor

Li J.

• College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, Shaanxi, China

autor

Tanaka K.

• Faculty of Agriculture, Tottori University, Koyama, Minami, 4-101, Tottori 680-8553, Japan

autor

Oka M.

• Faculty of Agriculture, Tottori University, Koyama, Minami, 4-101, Tottori 680-8553, Japan

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