Effects of Polystyrene Nanoplastics and Elemental Silicon Nanoparticles on the Physiological and Biochemical Characteristics of <i>Dunaliella salina</i>

Zhang Gengming; Cai Zeyu; Liang Anqi; Li Chunyang; Hao Yi; Xu Xinxin; Ma Chuanxin

doi:10.12052/gdutxb.250048

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Effects of Polystyrene Nanoplastics and Elemental Silicon Nanoparticles on the Physiological and Biochemical Characteristics of Dunaliella salina

更新时间：2026-05-27

- Effects of Polystyrene Nanoplastics and Elemental Silicon Nanoparticles on the Physiological and Biochemical Characteristics of Dunaliella salina
- Vol. 42, Issue 5, Pages: 21-30(2025)
- 作者机构：
  
  广东工业大学生态环境与资源学院,广东,广州,510006
- 作者简介：
- 基金信息：
- DOI：10.12052/gdutxb.250048
  CLC： X55;X171.5
- Published：2025
- 稿件说明：
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张耕铭, 蔡泽宇, 梁安琪, 等. 聚苯乙烯纳米颗粒和纳米硅对杜氏盐藻生理生化特性影响[J]. 广东工业大学学报, 2025, 42(5): 21–30.

Zhang Gengming, Cai Zeyu, Liang Anqi, et al. Effects of Polystyrene Nanoplastics and Elemental Silicon Nanoparticles on the Physiological and Biochemical Characteristics of Dunaliella salina[J]. 2025, 42(5): 21-30. DOI: 10.12052/gdutxb.250048.
张耕铭, 蔡泽宇, 梁安琪, 等. 聚苯乙烯纳米颗粒和纳米硅对杜氏盐藻生理生化特性影响[J]. 广东工业大学学报, 2025, 42(5): 21–30. DOI： 10.12052/gdutxb.250048

Zhang Gengming, Cai Zeyu, Liang Anqi, et al. Effects of Polystyrene Nanoplastics and Elemental Silicon Nanoparticles on the Physiological and Biochemical Characteristics of Dunaliella salina[J]. 2025, 42(5): 21-30. DOI: 10.12052/gdutxb.250048. DOI：

摘要

本文聚焦于工程纳米材料(Engineered Nanomaterials

ENMs)对海洋生态系统的影响，选择常见的聚苯乙烯纳米颗粒(Polystyrene Nanoplastics

PS NPs)和具有有益特性的纳米硅颗粒(Elemental Silicon Nanoparticles

Si NPs)，探究二者对主要海洋初级生产者——绿色微藻细胞即杜氏盐藻(

Dunaliella salina

)的影响。将ENMs于

Dunaliella salina

的对数生长期加入到培养基中，在暴露初期，这两种ENMs均促进细胞生长，细胞内光合色素的质量浓度增加了1.6%~13.3%，甜菜碱的质量比提高了2.7%~45.3%。然而，在暴露的后期，藻细胞抗氧化酶活性增加，产生氧化应激反应，在透射电子显微镜(Transmission Electron Microscopy

TEM)下观察到细胞形态发生破碎。转录组学分析显示，光合作用相关基因上调，进一步证明了细胞光合能力增强。本文研究表明，虽然ENMs初期可以促进细胞生长并提高光合性能，但细胞环境的变化引发了氧化应激反应，最终导致细胞损伤。这些发现对ENMs在海洋藻类细胞中高效安全应用提供了重要参考。

Abstract

This study focuses on the effects of engineered nanomaterials (ENMs) on marine ecosystems

specifically examining the impact of common and elemental ENMs with beneficial properties on primary marine producers

such as green microalgae cells.

Dunaliella salina

was selected as the experimental organism to investigate the influences of polystyrene nanoplastics (PS

NPs) and elemental silicon nanoparticles (Si NPs) . The ENMs were introduced to the algal cultures during their logarithmic growth phase. Initially

both materials promoted cell growth

with intracellular photosynthetic pigment content increasing by 1.6% to 13.3% and betaine content rising by 2.7% to 45.23%. However

in the later stages of exposure

algal cells exhibited increased antioxidant enzyme activity

leading to oxidative stress responses and morphological fragmentation observed under transmission electron microscopy (TEM) . In the transcriptome analysis

the upregulation of photosynthesis-related genes further demonstrated the enhancement of cellular photosynthetic capacity. In this study

while ENMs can initially enhance cell growth and improve photosynthetic performance

changes in the cellular environment can trigger oxidative stress responses that may ultimately harm the cells. These findings hold significant implications for the effective application of ENMs in marine algal cell research.

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Effects of Polystyrene Nanoplastics and Elemental Silicon Nanoparticles on the Physiological and Biochemical Characteristics of Dunaliella salina

DOI：10.12052/gdutxb.250048

摘要

Abstract

关键词

Keywords

references