Insights into the differential removal of various red tide organisms using modified clay: Influence of biocellular properties and mechanical interactions

doi:10.1016/j.hal.2024.102695

	Insights into the differential removal of various red tide organisms using modified clay: Influence of biocellular properties and mechanical interactions
	Zang, Xiaomiao 1,2,3; Yu, Zhiming1,2,3,4 ; Song, Xiuxian1,2,3,4 ; Cao, Xihua1,2,3 ; Jiang, Kaiqin 1,2,4
	2024-09-01
发表期刊	HARMFUL ALGAE
ISSN	1568-9883
卷号	138 页码:10
通讯作者	Yu, Zhiming([email protected])
摘要	In recent years, red tides have increased worldwide in frequency, intensity, involving a higher number of causative species during the events. As the most commonly used method for control of red tides, modified clay (MC) was found to have differential ability to remove various red tide species. However, the underlying mechanisms have not yet been completely elucidated. In this study, the use of MC to remove three typical disaster-causing species, Aureococcus anophagefferens, Prorocentrum donghaiense and Heterosigma akashiwo, was investigated, and differential removal of these species was probed with insights into their biocellular properties and mechanical interactions. The results showed that removal efficiencies of the three species by MC decreased in the order P. donghaiense > A. anophagefferens > H. akashiwo, while the sedimentation rates decreased in the order H. akashiwo > P. donghaiense > A. anophagefferens. Analyses of the cell surface properties and redundancy analysis (RDA) revealed that the highest surface zeta potential of -5.32+0.39 mV made P. donghaiense the most easily removed species; the smallest cell size of 3.30+0.03 mu m facilitated the removal of A. anophagefferens; and the highest hydrophobicity with a H2O surface contact angle of 98.50+4.31 degrees made the removal of H. akashiwo difficult. X-ray photoelectron spectroscopy (XPS) data indicated that the electronegativity of P. donghaiense was caused by carboxyl groups and phosphodiester groups, and the hydrophobicity of H. akashiwo was associated with a high C-(C, H) content on the cell surface. According to the extended Derjaguin, Landau, Verwey, and Overbeek (ex-DLVO) theory calculation, differences in the interaction energies between MC and the three red tide species effectively explained their different sedimentation rates. In addition, the degree of oxidative damage caused by MC to the three red tide species differed, which also affected the removal of red tide organisms.
关键词	Modified clay Red tide organism Flocculation Cell surface property Physiological activity
DOI	10.1016/j.hal.2024.102695
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Shandong Province, China[ZR2021QD029]; National Natural Sci-ence Foundation of China[42306230]; Intergovernmental Innova-tion Cooperation Project of the Ministry of Science and Technology[2022YFE0136400]; National Natural Science Foundation of China[42276220]
WOS研究方向	Marine & Freshwater Biology
WOS类目	Marine & Freshwater Biology
WOS记录号	WOS:001274861400001
出版者	ELSEVIER
WOS关键词	CELL-SURFACE ; AGGREGATION ; SIMULATIONS ; COAGULATION ; MITIGATION ; PARTICLES ; ADHESION ; BEHAVIOR ; ALGAE ; XPS
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/186106
专题	海洋生态与环境科学重点实验室
通讯作者	Yu, Zhiming
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zang, Xiaomiao,Yu, Zhiming,Song, Xiuxian,et al. Insights into the differential removal of various red tide organisms using modified clay: Influence of biocellular properties and mechanical interactions[J]. HARMFUL ALGAE,2024,138:10.
APA	Zang, Xiaomiao,Yu, Zhiming,Song, Xiuxian,Cao, Xihua,&Jiang, Kaiqin.(2024).Insights into the differential removal of various red tide organisms using modified clay: Influence of biocellular properties and mechanical interactions.HARMFUL ALGAE,138,10.
MLA	Zang, Xiaomiao,et al."Insights into the differential removal of various red tide organisms using modified clay: Influence of biocellular properties and mechanical interactions".HARMFUL ALGAE 138(2024):10.