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Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation

Phaeocystis globosa is a globally distributed harmful algal blooms (HABs) species dominated by the colonial morphotype, which presents dramatic environmental hazards and poses a threat to human health. Modified clay (MC) can effectively flocculate HAB organisms and prevent their subsequent growth, b...

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Autores principales: Ren, Xiangzheng, Yu, Zhiming, Qiu, Lixia, Cao, Xihua, Song, Xiuxian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8507688/
https://www.ncbi.nlm.nih.gov/pubmed/34639465
http://dx.doi.org/10.3390/ijerph181910163
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author Ren, Xiangzheng
Yu, Zhiming
Qiu, Lixia
Cao, Xihua
Song, Xiuxian
author_facet Ren, Xiangzheng
Yu, Zhiming
Qiu, Lixia
Cao, Xihua
Song, Xiuxian
author_sort Ren, Xiangzheng
collection PubMed
description Phaeocystis globosa is a globally distributed harmful algal blooms (HABs) species dominated by the colonial morphotype, which presents dramatic environmental hazards and poses a threat to human health. Modified clay (MC) can effectively flocculate HAB organisms and prevent their subsequent growth, but the effects of MC on colony-dominated P. globosa blooms remain uncertain. In this paper, a series of removal and incubation experiments were conducted to investigate the growth, colony formation and colony development of P. globosa cells after treatment with MC. The results show that the density of colonies was higher at MC concentrations below 0.2 g/L compared to those in the control, indicating the role of P. globosa colonies in resistance to environmental stress. Concentrations of MC greater than 0.2 g/L could reduce the density of solitary cells and colonies, and the colony diameter and extracellular polysaccharide (EPS) content were also decreased. The adsorption of MC to dissolved inorganic phosphorus (DIP) and the cell damage caused by collision may be the main mechanisms underlying this phenomenon. These results elucidate that the treatment with an appropriate concentration of MC may provide an effective mitigation strategy for P. globosa blooms by preventing their growth and colony formation.
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spelling pubmed-85076882021-10-13 Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation Ren, Xiangzheng Yu, Zhiming Qiu, Lixia Cao, Xihua Song, Xiuxian Int J Environ Res Public Health Article Phaeocystis globosa is a globally distributed harmful algal blooms (HABs) species dominated by the colonial morphotype, which presents dramatic environmental hazards and poses a threat to human health. Modified clay (MC) can effectively flocculate HAB organisms and prevent their subsequent growth, but the effects of MC on colony-dominated P. globosa blooms remain uncertain. In this paper, a series of removal and incubation experiments were conducted to investigate the growth, colony formation and colony development of P. globosa cells after treatment with MC. The results show that the density of colonies was higher at MC concentrations below 0.2 g/L compared to those in the control, indicating the role of P. globosa colonies in resistance to environmental stress. Concentrations of MC greater than 0.2 g/L could reduce the density of solitary cells and colonies, and the colony diameter and extracellular polysaccharide (EPS) content were also decreased. The adsorption of MC to dissolved inorganic phosphorus (DIP) and the cell damage caused by collision may be the main mechanisms underlying this phenomenon. These results elucidate that the treatment with an appropriate concentration of MC may provide an effective mitigation strategy for P. globosa blooms by preventing their growth and colony formation. MDPI 2021-09-27 /pmc/articles/PMC8507688/ /pubmed/34639465 http://dx.doi.org/10.3390/ijerph181910163 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ren, Xiangzheng
Yu, Zhiming
Qiu, Lixia
Cao, Xihua
Song, Xiuxian
Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation
title Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation
title_full Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation
title_fullStr Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation
title_full_unstemmed Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation
title_short Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation
title_sort effects of modified clay on phaeocystis globosa growth and colony formation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8507688/
https://www.ncbi.nlm.nih.gov/pubmed/34639465
http://dx.doi.org/10.3390/ijerph181910163
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