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Programmed cell death induced by modified clay in controlling Prorocentrum donghaiense bloom
Ji, Hena1,2,3,4; Yu, Zhiming1,2,3,4; He, Liyan1,2,4; Zhu, Jianan1,2,4; Cao, Xihua1,2,4; Song, Xiuxian1,2,3,4
2021-11-01
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
ISSN1001-0742
Volume109Pages:123-134
Corresponding AuthorYu, Zhiming(zyu@qdio.ac.cn)
AbstractModified clay (MC), an effective material used for the emergency elimination of algal blooms, can rapidly reduce the biomass of harmful algal blooms (HABs) via flocculation. After that, MC can still control bloom population through indirect effects such as oxidative stress, which was initially proposed to be related to programmed cell death (PCD) at molecular level. To further study the MC induced cell death in residual bloom organisms, especially identifying PCD process, we studied the physiological state of the residual Prorocentrum donghaiense. The experimental results showed that flocculation changed the physiological state of the residual cells, as evidenced by growth inhibition and increased reactive oxygen species production. Moreover, this research provides biochemical and ultrastructural evidence showing that MC induces PCD in P. donghaiense. Nuclear changes were observed, and increased caspase-like activity, externalization of phosphatidylserine and DNA fragmentation were detected in MC-treated groups and quantified. And the mitochondrial apoptosis pathway was activated in both MC-treated groups. Besides, the features of MC-induced PCD in a unicellular organism were summarized and its concentration dependent manner was proved. All our preliminary results elucidate the mechanism through which MC can further control HABs by inducing PCD and suggest a promising application of PCD in bloom control. (c) 2021 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
KeywordModified clay Prorocentrum donghaiense Programmed cell death Harmful algal blooms
DOI10.1016/j.jes.2021.03.039
Indexed BySCI
Language英语
Funding ProjectTaishan Scholars Climbing Program of Shandong Province of 2019 ; Special Research Assistant Program of Chinese Academy of Sciences ; China Postdoctoral Science Foundation Funded Project[2020M672153] ; AoShan Talents Cultivation Program from Qingdao National Laboratory for Marine Science and Technology[2017ASTCP-OS16]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000740441300013
PublisherSCIENCE PRESS
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/177651
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
4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
First Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Ji, Hena,Yu, Zhiming,He, Liyan,et al. Programmed cell death induced by modified clay in controlling Prorocentrum donghaiense bloom[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2021,109:123-134.
APA Ji, Hena,Yu, Zhiming,He, Liyan,Zhu, Jianan,Cao, Xihua,&Song, Xiuxian.(2021).Programmed cell death induced by modified clay in controlling Prorocentrum donghaiense bloom.JOURNAL OF ENVIRONMENTAL SCIENCES,109,123-134.
MLA Ji, Hena,et al."Programmed cell death induced by modified clay in controlling Prorocentrum donghaiense bloom".JOURNAL OF ENVIRONMENTAL SCIENCES 109(2021):123-134.
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