Toxicity of polystyrene (PS-NH2+) nanoplastic on microalgae Chlorella vulgaris

Bameri, Tahereh; Naji, Abolfazl; Akbarzadeh, Arash

Volume 10, Issue 2 (Autumn 2020) J. Aqua. Eco 2020, 10(2): 52-62 | Back to browse issues page

‎ 20.1001.1.23222751.1399.10.2.5.3

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Bameri T, Naji A, Akbarzadeh A. Toxicity of polystyrene (PS-NH2+) nanoplastic on microalgae Chlorella vulgaris. J. Aqua. Eco 2020; 10 (2) :52-62
URL: http://jae.hormozgan.ac.ir/article-1-785-en.html

Toxicity of polystyrene (PS-NH2+) nanoplastic on microalgae Chlorella vulgaris

Tahereh Bameri

, Abolfazl Naji ^*

, Arash Akbarzadeh

Abstract: (2215 Views)

Due to using of nanoplastics in a wide range of applications such as biosensors, photonics, nanocomposites and etc., and highly enhancement of plastic debris in aqueous environments have raised concerns about the potential effects of these substances on microalgae that are primary producers. The aim of this study was, to investigate the effects of different concentrations (0.25, 2.5, 25, and 250 mg/L) nanopolystyrene particles (PS-NH₂⁺) after 96 hours on the growth, chlorophyll a content, and amount of antioxidant production of microalgae chlorella vulgaris. The growth rate (counting of cells) and chlorophyll a content and amount of antioxidant (measuring optical density/absorbance) were evaluated. The growth and chlorophyll a content showed a decreasing trend than the control group, with increasing concentration of nanoplastic and exposure time (12 days). Also, the results demonstrated that the amounts of antioxidant production in the exposed samples to nano-polystyrene were higher than the control samples. Finally, it`s suggested that this nanoparticle causes acute impacts on this microalgae in a long time and has the ability to affect cellular mechanisms.

Keywords: contamination of plastic, antioxidant, food chain, chlorophyll a

Full-Text [PDF 761 kb] (573 Downloads)

Type of Study: Research | Subject: Special
Published: 2020/10/1