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Physiological Responses of a Diazotrophic Cyanobacterium to Acidification of Paddy Floodwater: N2 Fixation, Photosynthesis, and Oxidative–Antioxidative Characteristics

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成果类型:
期刊论文
作者:
Yan, Qiong;Xiao, Peng;Li, Jun;He, Yaxian;Shao, Jihai
通讯作者:
Jihai Shao
作者机构:
[Shao, Jihai; Yan, Qiong] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.
[Xiao, Peng] Wenzhou Univ, Coll Life & Environm Sci, Natl & Local Joint Engn Res Ctr Ecol Treatment Te, Wenzhou 325035, Peoples R China.
[Li, Jun] Hunan Res Inst Chem Ind, Hunan Prov Key Lab Agrochem, Natl Engn Res Ctr Agrochem, Changsha 410014, Peoples R China.
[He, Yaxian] Zhuzhou Ecol & Environm Monitoring Ctr, Zhuzhou 412000, Peoples R China.
通讯机构:
[Jihai Shao] C
College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China<&wdkj&>Author to whom correspondence should be addressed.
语种:
英文
关键词:
acidification;diazotrophic cyanobacteria;photosynthesis;reactive oxygen species;antioxidants
期刊:
International Journal of Environmental Research and Public Health
ISSN:
1661-7827
年:
2022
卷:
19
期:
22
页码:
15070-
基金类别:
Conceptualization, J.S. and P.X.; methodology, Q.Y., J.L. and Y.H.; software, Q.Y.; validation, J.L. and Y.H.; formal analysis, P.X.; investigation, Q.Y. and J.L.; resources, J.S.; data curation, J.S. and P.X.; writing—original draft preparation, Q.Y.; writing—review and editing, J.S. and P.X.; visualization, Q.Y. and Y.H.; supervision, J.S.; project administration, J.S.; funding acquisition, J.S. All authors have read and agreed to the published version of the manuscript. This research was funded by the National Natural Science Foundation of China, grant number 32071647 and the Natural Science Foundation of Hunan Province, China, grant number 2020JJ4371.
机构署名:
本校为第一机构
院系归属:
资源环境学院
摘要:
Long-term of excessive fertilization using nitrogen (N) chemical fertilizer caused the acidification of paddy soils. Presently, the impacts of soil acidification on physiological characteristics of diazotrophic cyanobacteria remain unknown. In order to elucidate this issue, the effects of paddy floodwater acidification on activities of respiration, photosynthetic oxygen evolution, and N-2 fixation of a paddy diazotrophic cyanobacterium Aliinostoc sp. YYLX235 were investigated in this study. In addition, the origination and quenching of intracellular reactive oxygen species (ROS) were analyzed....

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