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2020•Revista de ChimieOpen access

Effects of Exogenous SA and H2O2 on Wheat-Seedling�s Antioxidant Enzymes in Different Temperatures

Baoting Fang, Xiangdong Li, Simeng Du, Yunhui Shao, Hanfang Wang, Junqin Yue, Deqi Zhang, Chengfeng Yang, Feng Qin, Yanjing Wang

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Abstract

In order to clarify the compensation effect of exogenous salicylic acid (SA) and H2O2 on wheat growth, this paper, by setting different growth temperatures in the artificial climate chamber, has studied the effects of antioxidant enzymes and proline content of wheat seedlings with spraying SA, hydrogen peroxide (H2O2) and SA+H2O2. The results show that catalase (CAT) activity, in 0 and 5 �C is lower than 10 and 15 �C, while the peroxidase (POD) activity is opposite. The activity of ascorbate peroxidase (APX) increases gradually with temperature increasing. Exogenous SA, H2O2, and SA+H2O2 could effectively improve the activity of wheat antioxidant enzymes and the content of proline (Pro), while the SA+H2O2 treatment improves obviously.

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What this paper is about

In order to clarify the compensation effect of exogenous salicylic acid (SA) and H2O2 on wheat growth, this paper, by setting different growth temperatures in the artificial climate chamber, has studied the effects of antioxidant enzymes and proline content of wheat seedlings with spraying SA, hydrogen peroxide (H2O2) and SA+H2O2. The results show that catalase (CAT) activity, in 0 and 5 �C is lower than 10 and 15 �C, while the peroxidase (POD) activity is opposite. The activity of ascorbate peroxidase (APX) increases gradually with temperature increasing. Exogenous SA, H2O2, and SA+H2O2 could effectively improve the activity of wheat antioxidant enzymes and the content of proline (Pro), while the SA+H2O2 treatment improves obviously.

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Available abstract

In order to clarify the compensation effect of exogenous salicylic acid (SA) and H2O2 on wheat growth, this paper, by setting different growth temperatures in the artificial climate chamber, has studied the effects of antioxidant enzymes and proline content of wheat seedlings with spraying SA, hydrogen peroxide (H2O2) and SA+H2O2. The results show that catalase (CAT) activity, in 0 and 5 �C is lower than 10 and 15 �C, while the peroxidase (POD) activity is opposite. The activity of ascorbate peroxidase (APX) increases gradually with temperature increasing. Exogenous SA, H2O2, and SA+H2O2 could effectively improve the activity of wheat antioxidant enzymes and the content of proline (Pro), while the SA+H2O2 treatment improves obviously.

Key concepts: APX, Catalase, Peroxidase, Antioxidant, Salicylic acid, Hydrogen peroxide, Proline, Chemistry

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Effects of Exogenous SA and H2O2 on Wheat-Seedling�s Antioxidant Enzymes in Different Temperatures — Research Paper | ScholarLens