Effects of polystyrene microplastic on the growth and volatile halocarbons release of microalgae Phaeodactylum tricornutum

Lang, Xiao-Ping; Ni, Jie; He, Zhen

doi:10.1016/j.marpolbul.2021.113197

Cited by 20 publications

(7 citation statements)

References 61 publications

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“…Previous studies have shown that the pollutants can inhibit the synthesis of chlorophyll a. For example, Lang et al (2022) found that after 96 h of exposure, the inhibition ratio of PS (25-200 mg/L) on the content of chlorophyll a reached 20.11, 22.34, 22.10, and 25.45%, respectively. Triclosan (TCS) (0.7 µg/mL) significantly reduced the chlorophyll content of cyanobacterium (Anabaena sp.…”

Section: Effects Of Microplastics and B[a]p On Photosynthetic Pigmentmentioning

confidence: 95%

“…Photosynthetic pigments play an important role in the photosynthesis of microalgae. In addition, the content of chlorophyll a can reflect environmental stress and toxicity (Lang et al, 2022). Therefore, this study determined the content of photosynthetic pigment (chlorophyll a, chlorophyll b and carotenoids) in microalgae.…”

Section: Effects Of Microplastics and B[a]p On Photosynthetic Pigmentmentioning

confidence: 99%

“…These aggregates would further limit the light transfer and mass transfer between cells and the environment. Thus, the photosynthesis of microalgae will be restricted in terms of a decreased chlorophyll fluorescence parameter (F v /F m ) or photosynthesis pigment (Bhattacharya et al, 2010;Li S. et al, 2020;Lang et al, 2022). Additionally, the contaminants adsorbed or the additives released by microplastics can transfer to microalgal cells when they interact or aggregate.…”

Section: Single Microplasticsmentioning

confidence: 99%

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Combined Effects of Microplastics and Benzo[a]pyrene on the Marine Diatom Chaetoceros muelleri

Hou

et al. 2022

Front. Mar. Sci.

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Microplastics are regarded as ubiquitous pollutants in the ocean and have attracted worldwide concerns. Benzo[a]pyrene (B[a]P), one of typical polycyclic aromatic hydrocarbons (PAHs), is commonly detected in marine environment. Once coexisted, the microplastics and B[a]P may interact with each other and result in combined toxicity to organisms, and these remain to be systematically elucidated. Thus, this study aims to investigate (i) the effects of single micro-sized polystyrene (mPS), polyethylene terephthalate (mPET), and B[a]P on cell growth of Chaetoceros muelleri; and (ii) the interaction of microplastics and B[a]P, and their combined effects on C. muelleri. The results showed that both single microplastics and B[a]P at a high concentration of 150 μg/L inhibited the growth of C. muelleri. For single treatment of microplastics, stronger inhibition effects on microalgae was caused by mPET than that of mPS, with the highest IR of 25.23 and 11.17%, respectively. This may be attributed to the obvious surface roughness of mPET. By comparison, the combined effects of microplastics and B[a]P significantly inhibited the growth of C. muelleri as compared with the single treatment of B[a]P (P < 0.05). Synergistic effect was found in the combination of microplastics with B[a]P at high concentrations of 150 μg/L. Interestingly, the antagonistic effect on C. muelleri was observed in the combined treatment of microplastics and B[a]P at low concentrations of 10 μg/L. In addition, the pollutants reduced the content of photosynthetic pigments in microalgal cells. The SOD and MDA content of microalgae increased in the early stage of exposure to pollutants (e.g., Days 1 and 5), but decreased in the later stage (Day 15) compared with the control group. The decreased superoxide dismutase (SOD) and catalase (CAT) activity in single and composite systems may indicate that the antioxidative enzymatic system of microalgae has been inhibited or destroyed. This study will be helpful to further explore the ecological threats of microplastics and PAHs to the marine ecosystem.

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Section: Effects Of Microplastics and B[a]p On Photosynthetic Pigmentmentioning

confidence: 95%

Section: Effects Of Microplastics and B[a]p On Photosynthetic Pigmentmentioning

confidence: 99%

Section: Single Microplasticsmentioning

confidence: 99%

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Combined Effects of Microplastics and Benzo[a]pyrene on the Marine Diatom Chaetoceros muelleri

Hou

et al. 2022

Front. Mar. Sci.

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“…Plastics are commonly utilized in daily life and industrial production due to their affordable, lightweight, durable, flexible, and waterproof advantages [1]. Since the 1950s, global plastic production has climbed year by year, increasing from 1.5 million tons in 1950 to 3.907 million tons by 2021, with annual plastic production expected to reach 11.24 billion tons by 2050 [2].…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of interaction between microplastics and microorganisms in the environment

Li,

Kou,

Ren

2024

E3S Web Conf.

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As an emerging pollutant, microplastics (MPs) exist widely in the environment and have a certain degree of negative impact on microorganisms, plants, animals, and even the human body. This review summarizes the sources, distribution, and potential hazards of MPs, focusing on a particular emphasis on how MPs influence microorganisms individually and in intergroups, as well as the pathways and methods of microbial degradation in the environment. On this basis, future research directions on MPs and microorganisms are proposed so as to better understand the environmental behavior of MPs and carry out ecological risk assessment.

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“…Algae are the most important primary producers in the aquatic ecosystems [27]. Wang et al proved that PS-MPs can inhibit the growth of Dunaliella salina and Phaeodactylum tricornutum and induce high reactive oxygen species (ROS) produced by algae cells to cause oxidative damage to them [28,29]. Similarly, the exposure of Scenedesmus obliquus to PS-MPs led to growth inhibition and reduced chlorophyll levels in the cells [30].…”

Section: Introductionmentioning

confidence: 99%

Effects of Spontaneous Fluorescent Polystyrene on Nostocaceae and Daphnia Magna

Qiu

Yuan

Qin

et al. 2023

Water

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Microplastic pollution is widespread around the world and inevitably comes into contact with organisms. With the accumulation of microplastics in the environment, the negative impact of microplastics on organisms has become the main focus in the field of microplastics. In this study, the different particle and concentration effects of fluorescent polystyrene microplastics (PS-MPs) on Nostocaceae and Daphnia Magna were researched. The results indicate that PS-MPs adhered to Nostocaceae through static electricity, which hindered the absorption of photons and CO2 by Nostocaceae, resulting in a decrease in chlorophyll, a low growth rate and high mortality for Nostocaceae. PS-MPs with very small particles may be integrated into the blood of Daphnia Magna, leading to an increasing trend of mortality and a decrease in spawning rate. The research provides basic data and a reference for the effect of PS-MPs on freshwater organisms and has implications for the further study of microplastics.

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Effects of polystyrene microplastic on the growth and volatile halocarbons release of microalgae Phaeodactylum tricornutum

Cited by 20 publications

References 61 publications

Combined Effects of Microplastics and Benzo[a]pyrene on the Marine Diatom Chaetoceros muelleri

Combined Effects of Microplastics and Benzo[a]pyrene on the Marine Diatom Chaetoceros muelleri

Mechanisms of interaction between microplastics and microorganisms in the environment

Effects of Spontaneous Fluorescent Polystyrene on Nostocaceae and Daphnia Magna

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