HPR1 Is Required for High Light Intensity Induced Photorespiration in <i>Arabidopsis thaliana</i>
High light intensity as one of the stresses could lead to generation of large amounts of reactive oxygen species (ROS) in plants, resulting in severe plant growth retardation. The photorespiration metabolism plays an important role in producing and removing a variety of ROS, maintaining the dynamic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/23/8/4444 |
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| author | Zi Wang Yetao Wang Yukun Wang Haotian Li Zhiting Wen Xin Hou |
| author_facet | Zi Wang Yetao Wang Yukun Wang Haotian Li Zhiting Wen Xin Hou |
| author_sort | Zi Wang |
| collection | DOAJ |
| description | High light intensity as one of the stresses could lead to generation of large amounts of reactive oxygen species (ROS) in plants, resulting in severe plant growth retardation. The photorespiration metabolism plays an important role in producing and removing a variety of ROS, maintaining the dynamic balance of the redox reaction, and preventing photoinhibition. <i>Arabidopsis</i> hydroxypyruvate reductase 1 (HPR1) is a primary metabolic enzyme in the photorespiration cycle. However, the role of HPR1 in plants response to high light is not clear. Here, we found that the expression of <i>HPR1</i> could be induced by high light intensity. The growth and photosynthetic capacity of <i>hpr1</i> mutants are seriously affected under high light intensity. The absence of HPR1 suppresses the rates of photorepair of Photosystem II (PSII), aggravates the production of ROS, and accelerates photorespiration rates. Moreover, the activity of ROS scavenging enzymes in the <i>hpr1</i> mutants is significantly higher. These results indicate that HPR1 is involved in plant response to high light intensity and is essential for maintaining the dynamic balance of ROS and photorespiration. |
| first_indexed | 2024-03-09T10:33:48Z |
| format | Article |
| id | doaj.art-214193380ff64b45b420b217ce49e93d |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T10:33:48Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-214193380ff64b45b420b217ce49e93d2023-12-01T21:04:56ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-04-01238444410.3390/ijms23084444HPR1 Is Required for High Light Intensity Induced Photorespiration in <i>Arabidopsis thaliana</i>Zi Wang0Yetao Wang1Yukun Wang2Haotian Li3Zhiting Wen4Xin Hou5State Key Laboratory of Hybrid Rice, Hubei Hongshan Laboratory, College of Life Sciences, Wuhan University, Wuhan 430072, ChinaState Key Laboratory of Hybrid Rice, Hubei Hongshan Laboratory, College of Life Sciences, Wuhan University, Wuhan 430072, ChinaState Key Laboratory of Hybrid Rice, Hubei Hongshan Laboratory, College of Life Sciences, Wuhan University, Wuhan 430072, ChinaState Key Laboratory of Hybrid Rice, Hubei Hongshan Laboratory, College of Life Sciences, Wuhan University, Wuhan 430072, ChinaState Key Laboratory of Hybrid Rice, Hubei Hongshan Laboratory, College of Life Sciences, Wuhan University, Wuhan 430072, ChinaState Key Laboratory of Hybrid Rice, Hubei Hongshan Laboratory, College of Life Sciences, Wuhan University, Wuhan 430072, ChinaHigh light intensity as one of the stresses could lead to generation of large amounts of reactive oxygen species (ROS) in plants, resulting in severe plant growth retardation. The photorespiration metabolism plays an important role in producing and removing a variety of ROS, maintaining the dynamic balance of the redox reaction, and preventing photoinhibition. <i>Arabidopsis</i> hydroxypyruvate reductase 1 (HPR1) is a primary metabolic enzyme in the photorespiration cycle. However, the role of HPR1 in plants response to high light is not clear. Here, we found that the expression of <i>HPR1</i> could be induced by high light intensity. The growth and photosynthetic capacity of <i>hpr1</i> mutants are seriously affected under high light intensity. The absence of HPR1 suppresses the rates of photorepair of Photosystem II (PSII), aggravates the production of ROS, and accelerates photorespiration rates. Moreover, the activity of ROS scavenging enzymes in the <i>hpr1</i> mutants is significantly higher. These results indicate that HPR1 is involved in plant response to high light intensity and is essential for maintaining the dynamic balance of ROS and photorespiration.https://www.mdpi.com/1422-0067/23/8/4444photorespirationphotosynthesisROShigh light intensity |
| spellingShingle | Zi Wang Yetao Wang Yukun Wang Haotian Li Zhiting Wen Xin Hou HPR1 Is Required for High Light Intensity Induced Photorespiration in <i>Arabidopsis thaliana</i> International Journal of Molecular Sciences photorespiration photosynthesis ROS high light intensity |
| title | HPR1 Is Required for High Light Intensity Induced Photorespiration in <i>Arabidopsis thaliana</i> |
| title_full | HPR1 Is Required for High Light Intensity Induced Photorespiration in <i>Arabidopsis thaliana</i> |
| title_fullStr | HPR1 Is Required for High Light Intensity Induced Photorespiration in <i>Arabidopsis thaliana</i> |
| title_full_unstemmed | HPR1 Is Required for High Light Intensity Induced Photorespiration in <i>Arabidopsis thaliana</i> |
| title_short | HPR1 Is Required for High Light Intensity Induced Photorespiration in <i>Arabidopsis thaliana</i> |
| title_sort | hpr1 is required for high light intensity induced photorespiration in i arabidopsis thaliana i |
| topic | photorespiration photosynthesis ROS high light intensity |
| url | https://www.mdpi.com/1422-0067/23/8/4444 |
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