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Article

Effects of Stripe Rust Infection on the Levels of Redox Balance and Photosynthetic Capacities in Wheat

1
College of Life Science, Sichuan Agricultural University, Ya’an 625014, China
2
College of Resources, Sichuan Agricultural University, Chengdu 611130, China
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this study.
Int. J. Mol. Sci. 2020, 21(1), 268; https://doi.org/10.3390/ijms21010268
Received: 25 November 2019 / Revised: 21 December 2019 / Accepted: 23 December 2019 / Published: 31 December 2019
(This article belongs to the Special Issue Antioxidant Metabolic Pathways in Plants)
Wheat stripe rust (Puccinia striiformis f. sp. tritici, Pst) is the most destructive wheat disease and a major problem for the productivity of wheat in the world. To obtain a better understanding about different effects of redox homeostasis and photosystem (PS) to Pst infection in wheat, we investigated the differences in photosynthesis and the antioxidant defense system in wheat cultivar Chuanmai42 (CM42) in response to two Chinese Pst races known as CYR32 and V26. The results showed that V26-infected wheat accumulated a higher reactive oxygen species (ROS), cell death, and energy dissipation than CYR32-infected wheat when compared with the control. Furthermore, we found that the activities of three antioxidant enzymes (APX, GR, and GPX) and four resistance-related enzymes in CYR32-infected wheat were significantly higher than that in V26-infected wheat. In addition, quantitative RT-PCR indicated that the expression levels of two genes associated with resistant stripe rust in CYR32-infected wheat were clearly higher than that in V26-infected wheat. Compared with CYR32-infected wheat, lower photochemical efficiencies were observed in V26-infected wheat at the adult stage. Meanwhile, only a marked decline in D1 protein was observed in V26-infected wheat. We therefore deduced that wheat with stripe rust resistance could maintain high resistance and photosynthetic capacity by regulating the antioxidant system, disease-resistant related enzymes and genes, and the levels of PSII reaction center proteins. View Full-Text
Keywords: stripe rust; antioxidant enzyme; chlorophyll fluorescence; photosystem; Triticum aestivum L. stripe rust; antioxidant enzyme; chlorophyll fluorescence; photosystem; Triticum aestivum L.
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MDPI and ACS Style

Chen, Y.; Mao, H.; Wu, N.; Ma, J.; Yuan, M.; Zhang, Z.; Yuan, S.; Zhang, H. Effects of Stripe Rust Infection on the Levels of Redox Balance and Photosynthetic Capacities in Wheat. Int. J. Mol. Sci. 2020, 21, 268. https://doi.org/10.3390/ijms21010268

AMA Style

Chen Y, Mao H, Wu N, Ma J, Yuan M, Zhang Z, Yuan S, Zhang H. Effects of Stripe Rust Infection on the Levels of Redox Balance and Photosynthetic Capacities in Wheat. International Journal of Molecular Sciences. 2020; 21(1):268. https://doi.org/10.3390/ijms21010268

Chicago/Turabian Style

Chen, Yanger, Haotian Mao, Nan Wu, Jie Ma, Ming Yuan, Zhongwei Zhang, Shu Yuan, and Huaiyu Zhang. 2020. "Effects of Stripe Rust Infection on the Levels of Redox Balance and Photosynthetic Capacities in Wheat" International Journal of Molecular Sciences 21, no. 1: 268. https://doi.org/10.3390/ijms21010268

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