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Photosynthetic performance of the red algae Gracilariopsis lemaneiformis under high seawater pH: Excess reactive oxygen production due to carbon limitation

文献类型：期刊论文

作者Xu, Hongjun2,3,4; Pang, Tong1,2,3; Zhang, Litao1,2,3; Liu, Jianguo1,2,3
刊名PHOTOCHEMISTRY AND PHOTOBIOLOGY
出版日期2024-07-19
页码12
关键词carbon limitation gracilariopsis lemaneiformis inorganic photosynthesis seawater pH
ISSN号0031-8655
DOI10.1111/php.13968
通讯作者Liu, Jianguo(jgliu@qdio.ac.cn)
英文摘要The red algae Gracilariopsis lemaneiformis is extensively cultivated at high densities, leading to significant increases in regional seawater pH due to its photosynthetic removal of inorganic carbon. We conducted a study on G. lemaneiformis cultured under various pH conditions (normal pH, pH 9.3, and pH 9.6) and light levels (dark and 100 mu mol photons m(-2) s(-1)) to investigate how high pH seawater environments affect the metabolic processes of G. lemaneiformis. The high pH did not directly damage the photosynthetic light reactions or the Calvin cycle. Instead, the observed reduction in photosynthetic rates was primarily due to CO2 limitation. However, under illuminated conditions, a high pH environment leads to a decrease in electron transport efficiency (ETo/RC) and reaction center density (RC/CSo), while simultaneously increasing the levels of hydrogen peroxide (H2O2), malondialdehyde (MDA), and the activity of antioxidant enzymes. Under illuminated conditions, the limitation of inhibit the photosynthetic electron transport process, leading to energy imbalance and excessive production of reactive oxygen species, which in turn resulted in lipid peroxidation of the cell membrane. This might be one of the inducing factors responsible for the bleaching in sea-farmed G. lemaneiformis plants.
WOS关键词INORGANIC CARBON ; GROWTH ; CULTIVATION ; SEAWEED ; PLANTS ; CHLOROPHYTA ; COMMUNITIES ; RESPONSES ; PATHWAY ; DISEASE
资助项目National Natural Science Foundation of China ; Key Program of Science and Technology Innovation in Ningbo[2019B10009] ; TS Industrial Experts Programme[LJNY202102] ; International Partnership Program of Chinese Academy of Sciences[GJHZ2039] ; Shandong Province Natural Science Foundation[ZR2020QD101] ; Shandong Province Mega science Facility Preliminary Research Project - Study on Simulation Shandong Province Mega-science Facility Preliminary Research Project[DKXZZ202205]
WOS研究方向Biochemistry & Molecular Biology ; Biophysics
语种英语
WOS记录号WOS:001272922200001
出版者WILEY
源URL[http://ir.qdio.ac.cn/handle/337002/186239]  
专题海洋研究所_实验海洋生物学重点实验室
通讯作者Liu, Jianguo
作者单位1.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
2.Chinese Acad Sci, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Shandong Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Hongjun,Pang, Tong,Zhang, Litao,et al. Photosynthetic performance of the red algae Gracilariopsis lemaneiformis under high seawater pH: Excess reactive oxygen production due to carbon limitation[J]. PHOTOCHEMISTRY AND PHOTOBIOLOGY,2024:12.
APA Xu, Hongjun,Pang, Tong,Zhang, Litao,&Liu, Jianguo.(2024).Photosynthetic performance of the red algae Gracilariopsis lemaneiformis under high seawater pH: Excess reactive oxygen production due to carbon limitation.PHOTOCHEMISTRY AND PHOTOBIOLOGY,12.
MLA Xu, Hongjun,et al."Photosynthetic performance of the red algae Gracilariopsis lemaneiformis under high seawater pH: Excess reactive oxygen production due to carbon limitation".PHOTOCHEMISTRY AND PHOTOBIOLOGY (2024):12.

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来源：海洋研究所

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