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2003•Acta Agriculturae Boreali-SinicaRequires access

The Effect of Spermine and MGBG on Drought-resistance of Wheat Seedlings

Guangmin Li

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Abstract

Under simulative drought stress with sand culture, spraying leaves with Spm(1 mmol/L) could increase relative water content,but decrease relative membrane permeability, thus enhance drought-resistance of wheat seedlings. However, spraying leaves with MGBG(1 mmol/L), an inhibitor of Spd and Spm, had opposite effects. The contents of endogenous Put, Spd and Spm in wheat seedling were stimulated by Spm treatment. But by MGBG treatment,only put was stimulated while the contents of Spd and Spm were reduced.

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What this paper is about

Under simulative drought stress with sand culture, spraying leaves with Spm(1 mmol/L) could increase relative water content,but decrease relative membrane permeability, thus enhance drought-resistance of wheat seedlings. However, spraying leaves with MGBG(1 mmol/L), an inhibitor of Spd and Spm, had opposite effects. The contents of endogenous Put, Spd and Spm in wheat seedling were stimulated by Spm treatment. But by MGBG treatment,only put was stimulated while the contents of Spd and Spm were reduced.

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Available abstract

Under simulative drought stress with sand culture, spraying leaves with Spm(1 mmol/L) could increase relative water content,but decrease relative membrane permeability, thus enhance drought-resistance of wheat seedlings. However, spraying leaves with MGBG(1 mmol/L), an inhibitor of Spd and Spm, had opposite effects. The contents of endogenous Put, Spd and Spm in wheat seedling were stimulated by Spm treatment. But by MGBG treatment,only put was stimulated while the contents of Spd and Spm were reduced.

Key concepts: Seedling, Spermine, Drought resistance, Water stress, Chemistry, Agronomy, Drought stress, Membrane permeability

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