Impact of polystyrene microplastics on the growth and photosynthetic efficiency of diatom Chaetoceros neogracile.

Mojiri, A; Vishkaei, MN; Zhou, JL; Trzcinski, AP; Lou, Z; Kasmuri, N; Rezania, S; Gholami, A; Vakili, M; Kazeroon, RA

Impact of polystyrene microplastics on the growth and photosynthetic efficiency of diatom Chaetoceros neogracile.

Mojiri, A Vishkaei, MN Zhou, JL Trzcinski, AP Lou, Z Kasmuri, N Rezania, S Gholami, A Vakili, M Kazeroon, RA

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Mar Environ Res, 2024, 194, pp. 106343
Issue Date:: 2024-02

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Field	Value	Language
dc.contributor.author	Mojiri, A
dc.contributor.author	Vishkaei, MN
dc.contributor.author	Zhou, JL
dc.contributor.author	Trzcinski, AP
dc.contributor.author	Lou, Z
dc.contributor.author	Kasmuri, N
dc.contributor.author	Rezania, S
dc.contributor.author	Gholami, A
dc.contributor.author	Vakili, M
dc.contributor.author	Kazeroon, RA
dc.date.accessioned	2025-03-17T02:01:10Z
dc.date.available	2024-01-07
dc.date.available	2025-03-17T02:01:10Z
dc.date.issued	2024-02
dc.identifier.citation	Mar Environ Res, 2024, 194, pp. 106343
dc.identifier.issn	0141-1136
dc.identifier.issn	1879-0291
dc.identifier.uri	http://hdl.handle.net/10453/185874
dc.description.abstract	The increasing prevalence of microplastic pollution in aquatic environments has raised concerns about its impact on marine life. Among the different types of microplastics, polystyrene microplastics (PSMPs) are one of the most commonly detected in aquatic systems. Chaetoceros neogracile (diatom) is an essential part of the marine food web and plays a critical role in nutrient cycling. This study aimed to monitor the ecotoxicological impact of PSMPs on diatoms and observe enzymatic interactions through molecular docking simulations. Results showed that diatom growth decreased with increasing concentrations and exposure time to PSMPs, and the lowest photosynthetic efficiency (Fv/Fm) value was observed after 72 and 96 h of exposure to 200 mg L-1 of PSMPs. High concentrations of PSMPs led to a decrease in chlorophyll a content (up to 64.4%) and protein content (up to 35.5%). Molecular docking simulations revealed potential interactions between PSMPs and the extrinsic protein in photosystem II protein of diatoms, suggesting a strong affinity between the two. These findings indicate a detrimental effect of PSMPs on the growth and photosynthetic efficiency of diatoms and highlight the need for further research on the impact of microplastics on marine microbial processes.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Mar Environ Res
dc.relation.isbasedon	10.1016/j.marenvres.2024.106343
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	03 Chemical Sciences, 05 Environmental Sciences, 06 Biological Sciences
dc.subject.classification	Marine Biology & Hydrobiology
dc.subject.classification	31 Biological sciences
dc.subject.classification	34 Chemical sciences
dc.subject.classification	41 Environmental sciences
dc.subject.mesh	Microplastics
dc.subject.mesh	Polystyrenes
dc.subject.mesh	Diatoms
dc.subject.mesh	Plastics
dc.subject.mesh	Chlorophyll A
dc.subject.mesh	Molecular Docking Simulation
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Diatoms
dc.subject.mesh	Polystyrenes
dc.subject.mesh	Plastics
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Molecular Docking Simulation
dc.subject.mesh	Chlorophyll A
dc.subject.mesh	Microplastics
dc.subject.mesh	Microplastics
dc.subject.mesh	Polystyrenes
dc.subject.mesh	Diatoms
dc.subject.mesh	Plastics
dc.subject.mesh	Chlorophyll A
dc.subject.mesh	Molecular Docking Simulation
dc.subject.mesh	Water Pollutants, Chemical
dc.title	Impact of polystyrene microplastics on the growth and photosynthetic efficiency of diatom Chaetoceros neogracile.
dc.type	Journal Article
utslib.citation.volume	194
utslib.location.activity	England
utslib.for	03 Chemical Sciences
utslib.for	05 Environmental Sciences
utslib.for	06 Biological Sciences
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Technology in Water and Wastewater (CTWW)
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Green Technology (CGT)
utslib.copyright.status	closed_access	*
dc.date.updated	2025-03-17T02:01:07Z
pubs.publication-status	Published
pubs.volume	194

Abstract:

The increasing prevalence of microplastic pollution in aquatic environments has raised concerns about its impact on marine life. Among the different types of microplastics, polystyrene microplastics (PSMPs) are one of the most commonly detected in aquatic systems. Chaetoceros neogracile (diatom) is an essential part of the marine food web and plays a critical role in nutrient cycling. This study aimed to monitor the ecotoxicological impact of PSMPs on diatoms and observe enzymatic interactions through molecular docking simulations. Results showed that diatom growth decreased with increasing concentrations and exposure time to PSMPs, and the lowest photosynthetic efficiency (Fv/Fm) value was observed after 72 and 96 h of exposure to 200 mg L-1 of PSMPs. High concentrations of PSMPs led to a decrease in chlorophyll a content (up to 64.4%) and protein content (up to 35.5%). Molecular docking simulations revealed potential interactions between PSMPs and the extrinsic protein in photosystem II protein of diatoms, suggesting a strong affinity between the two. These findings indicate a detrimental effect of PSMPs on the growth and photosynthetic efficiency of diatoms and highlight the need for further research on the impact of microplastics on marine microbial processes.

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http://hdl.handle.net/10453/185874