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Effects of modified clay on the formation of Phaeocystis globosa colony revealed by physiological and transcriptomic analyses
Ren, Xiangzheng1,2,3,4; Yu, Zhiming1,2,3,4; Song, Xiuxian1,2,3,4; Zhu, Jianan1,2,4; Wang, Wentao1,2,3,4; Cao, Xihua1,2,4
2022-09-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume838Pages:12
Corresponding AuthorYu, Zhiming(zyu@qdio.ac.cn)
AbstractThe harmful algal bloom (HAB) species Phaeocystis globosa is commonly observed in global temperate and tropical oceans, and colonies of P. globosa exhibit a dominant morphotype during blooms. The use of polyaluminium chloride modified clay (PAC-MC) is an effective mitigation strategy for P. globosa blooms. Although previous studies have found that PAC-MC can stimulate P. globosa colony formation at low concentrations and inhibit it at higher concentrations, the underlying mechanisms of these effects are poorly understood. Here, we comprehensively compared the physiochemical indices and transcriptomic response of residual P. globosa cells after treatment with two concentrations of PAC-MC. The results showed that PAC-MC induced oxidative stress, photosynthetic inhibition, and DNA damage in residual cells. Moreover, it could activate antioxidant responses and enhance the repair of photosynthetic structure and DNA damage in cells. The biosynthesis of polysaccharides was enhanced and genes associated with cell motility were down-regulated after treatment with PAC-MC, resulting in the accumulation of colonial matrixes. After treatment with a low concentration of PAC-MC (0.1 g/L), the residual cells were slightly stressed, including physical damage, oxidative stress and other damage, and polysaccharide synthesis was enhanced to promote colony formation to alleviate environmental stress. Moreover, the damage to residual cells was slight; thus, normal cell function provided abundant energy and matter for colony formation. After treatment with a high concentration of PAC-MC (0.5 g/L), the residual cells suffered severe damage, which disrupted normal physiological processes and inhibited cell proliferation and colony formation. The present study elucidated the concentration-dependent mechanism of PAC-MC affecting the formation of P. globosa colonies and provided a reference for the application of PAC-MC to control P. globosa blooms.
KeywordPhaeocystis globosa Modi fied clay Colony formation Oxidative stress Photosynthetic behaviour Transcriptome
DOI10.1016/j.scitotenv.2022.155985
Indexed BySCI
Language英语
Funding ProjectTaishan Scholars Climbing Program of Shandong Province of 2019 ; National Natural Science Foundation of China[42006120] ; Shandong Provincial Natural Science Foundation, China[ZR2019QD014]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000809650800012
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/179522
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 Mega Sci, Qingdao 266071, 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
Ren, Xiangzheng,Yu, Zhiming,Song, Xiuxian,et al. Effects of modified clay on the formation of Phaeocystis globosa colony revealed by physiological and transcriptomic analyses[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,838:12.
APA Ren, Xiangzheng,Yu, Zhiming,Song, Xiuxian,Zhu, Jianan,Wang, Wentao,&Cao, Xihua.(2022).Effects of modified clay on the formation of Phaeocystis globosa colony revealed by physiological and transcriptomic analyses.SCIENCE OF THE TOTAL ENVIRONMENT,838,12.
MLA Ren, Xiangzheng,et al."Effects of modified clay on the formation of Phaeocystis globosa colony revealed by physiological and transcriptomic analyses".SCIENCE OF THE TOTAL ENVIRONMENT 838(2022):12.
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