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ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Photosynthesis and Photobiology
Volume 15 - 2024 |
doi: 10.3389/fpls.2024.1525522
The formaldehyde stress on photosynthetic efficiency and oxidative stress response of moss Racomitrium japonicum L.
Provisionally accepted
Wanting Li
1*
Jiawen Zhang
1*
Siqi Ma
1*
Min Zhou
1*
Ruixin Li
1*
Hao Tang
1*
Haiyan Qiu
1*
Ren Peng
1
Yunlai Tang
1*
Yunmei Lu
2*
Renhua Huang
2*
Ke Chen
1*- 1 Southwest University of Science and Technology, Mianyang, China
- 2 Jingchu University of Technology, Jingmen, Hubei Province, China
Formaldehyde is a common gaseous pollutant from buildings and decorative materials. However, in recent years, increasing concerns have been raised regarding its harmful health in indoor air. Therefore, this study aims to investigate the physiological and photosynthetic response mechanisms of Racomitrium japonicum under formaldehyde stress. R. japonicum was exposed to dynamic fumigation with formaldehyde for 7 days, with each day comprising an 8-h exposure period within a sealed container. The effects on plant structure, pigment content, photosynthetic efficiency, and reactive oxygen species (ROS) generation were assessed. Our findings revealed that formaldehyde stress led to structural damage, reduced pigment content, decreased photosynthetic efficiency, and increased ROS production in R. japonicum. Significantly, distinct stress-response pathways were observed at various formaldehyde concentrations. In response to low and moderate formaldehyde concentrations, R. japonicum activated its antioxidant enzyme system to mitigate ROS accumulation. In contrast, the high-concentration treatment group demonstrated suppressed antioxidant enzyme activity. In response, R. japonicum used non-photochemical quenching and activated cyclic electron flow to mitigate severe cellular damage. This study provides an in-depth understanding of the physiological changes of R. japonicum under formaldehyde stress, elucidating its response mechanisms. The findings provide valuable information for developing effective indoor formaldehyde monitoring and purification methods.
Keywords: Formaldehyde, Photosynthesis, Reactive Oxygen Species, Antioxidant enzyme system, Electron Transport
Received: 09 Nov 2024; Accepted: 24 Dec 2024.
Copyright: © 2024 Li, Zhang, Ma, Zhou, Li, Tang, Qiu, Peng, Tang, Lu, Huang and Chen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Wanting Li, Southwest University of Science and Technology, Mianyang, China
Jiawen Zhang, Southwest University of Science and Technology, Mianyang, China
Siqi Ma, Southwest University of Science and Technology, Mianyang, China
Min Zhou, Southwest University of Science and Technology, Mianyang, China
Ruixin Li, Southwest University of Science and Technology, Mianyang, China
Hao Tang, Southwest University of Science and Technology, Mianyang, China
Haiyan Qiu, Southwest University of Science and Technology, Mianyang, China
Yunlai Tang, Southwest University of Science and Technology, Mianyang, China
Yunmei Lu, Jingchu University of Technology, Jingmen, Hubei Province, China
Renhua Huang, Jingchu University of Technology, Jingmen, Hubei Province, China
Ke Chen, Southwest University of Science and Technology, Mianyang, China
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