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Physiological and photosynthetic responses of Karenia mikimotoi to the modified clay mitigation method
Liu, Shuya1,2,3; Yu, Zhiming1,2,3; Song, Xiuxian1,2,3; Cao, Xihua1,2
2018-08-01
Source PublicationMARINE POLLUTION BULLETIN
ISSN0025-326X
Volume133Pages:491-499
Corresponding AuthorYu, Zhiming(zyu@qdio.ac.cn)
AbstractModified clay (MC) removed harmful algae Karenia mikimotoi effectively, and significantly inhibited residual algae growth. Hydrogen peroxides (H2O2) and malondialdehyde (MDA) contents of K. mikimotoi increased significantly after treatment, indicating that MC induced oxidative stress. Moreover, H2O2 content was significantly correlated with cell density, indicating that increased reactive oxygen species (ROS) were likely responsible for the growth inhibition. Further investigation showed that MC caused damage to photosynthesis of residual algae, indicated by decreased maximal photochemical efficiency (F-v/F-m) and performance index (PIABS). The density of reaction center (RC) decreased, indicating that MC induced partially inactivated RCs, then caused residual activated RCs to be over-excited. The electron transport chain was also blocked, indicated by increased WK and V-J, and decreased S-m. These effects of photosystem II (PSII) were supposed to be the main contributors to ROS over-accumulation during photosynthesis. Overall, treatment with MC is an appropriate method for controlling K. mikimotoi blooms.
KeywordModified clay Karenia mikimotoi Reactive oxygen species Growth inhibition Photosynthetic behavior
DOI10.1016/j.marpolbul.2018.05.044
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFC1404300] ; AoShan Talents Cultivation Program - Qingdao National Laboratory for Marine Science and Technology[2017ASTCP-OS16] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1606404] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA11020601]
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEnvironmental Sciences ; Marine & Freshwater Biology
WOS IDWOS:000441853600053
PublisherPERGAMON-ELSEVIER SCIENCE LTD
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Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/157547
Collection海洋生态与环境科学重点实验室
Corresponding AuthorYu, Zhiming
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Corresponding Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Recommended Citation
GB/T 7714
Liu, Shuya,Yu, Zhiming,Song, Xiuxian,et al. Physiological and photosynthetic responses of Karenia mikimotoi to the modified clay mitigation method[J]. MARINE POLLUTION BULLETIN,2018,133:491-499.
APA Liu, Shuya,Yu, Zhiming,Song, Xiuxian,&Cao, Xihua.(2018).Physiological and photosynthetic responses of Karenia mikimotoi to the modified clay mitigation method.MARINE POLLUTION BULLETIN,133,491-499.
MLA Liu, Shuya,et al."Physiological and photosynthetic responses of Karenia mikimotoi to the modified clay mitigation method".MARINE POLLUTION BULLETIN 133(2018):491-499.
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