Antioxidant defense system

Potassium contributes to zinc stress tolerance in peach (Prunus persica) seedlings by enhancing photosynthesis and the antioxidant defense system

Z. Z. Song, Duan, C. L., Guo, S. L., Yang, Y., Feng, Y. F., Ma, R. J., and Yu, M. L., Potassium contributes to zinc stress tolerance in peach (Prunus persica) seedlings by enhancing photosynthesis and the antioxidant defense system, vol. 14, pp. 8338-8351, 2015.

Zinc (Zn) is considered to be a major industrial pollutant because excessive amounts can impair plant growth. In this paper, we found that peach ‘Yoshihime’ seedlings are promising Zn tolerant plants. However, heavy Zn toxicity (2 mM) damaged plant performance by disrupting biochemical processes, including photosynthesis, proline production, and K+ nutrition. Notably, elevated external K+ supply (10 mM) alleviated peach seedlings from Zn toxicity, evidenced by enhanced photosynthesis, antioxidant defense systems, and plant K+ nutritional status.

Subscribe to Antioxidant defense system