Potential of microalgae Parachlorella kessleri Bh-2 as bioremediation agent of heavy metals cadmium and chromium

Bauenova, M. O.; Sadvakasova, A. K.; Mustapayeva, Zhuldyz O.; Kokociński, Mikołaj; Zayadan, B. K.; Wojciechowicz, Maria; Balouch, Huma; Акмуханова, Н. Р.; Alwasel, Saleh; Allakhverdiev, Suleyman I.

doi:10.1016/j.algal.2021.102463

Cited by 26 publications

(8 citation statements)

References 50 publications

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“…As a global food contaminant, cadmium (Cd) can easily enter and accumulate in the human body [ 1 , 2 ]. Prolonged exposure to Cd will produce adverse health effects due to its accumulation [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Oleic Acid Facilitates Cd Excretion by Increasing the Abundance of Burkholderia in Cd-Exposed Mice

Fang

Chen

et al. 2022

IJMS

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As a global pollutant, cadmium (Cd) can easily enter the body through food chains, threatening human health. Most Cd is initially absorbed in the gut, with the gut microbiota playing a pivotal role in reducing Cd absorption and accumulation. This study assessed the effects of three fatty acids on Cd accumulation and toxicity in Cd-exposed mice. The results showed that oleic acid (OA) was the most effective in facilitating Cd excretion in mice among these fatty acids. The use of OA led to reduced Cd accumulation in the organs and increased Cd content in the feces. The metagenomic analysis of the gut microbiota showed that the genus Burkholderia was the most significantly restored by OA in Cd-exposed mice. Burkholderia cepacia, as the type species for the genus Burkholderia, also exhibited strong Cd tolerance after treatment with OA. Furthermore, the electron microscopy analysis showed that most of the Cd was adsorbed on the surface of B. cepacia, where the extracellular polymeric substances (EPSs) secreted by B. cepacia play a key role, displaying a strong capacity for Cd adsorption. The peak at 2355 cm−1 and the total sulfhydryl group content of EPSs showed significant increases following co-treatment with Cd and OA. The results demonstrated the potential roles that gut Burkholderia may play in OA-mediated Cd excretion in mice.

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Section: Introductionmentioning

confidence: 99%

Oleic Acid Facilitates Cd Excretion by Increasing the Abundance of Burkholderia in Cd-Exposed Mice

Fang

Chen

et al. 2022

IJMS

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“…The EC 50 values for four green algae, Ankistrodesmus fusiformis , Chlorella ellipsoidea , Monoraphidium contortum, and Scenedesmus acuminatus in the contaminated Matanza-Riachuelo River were 0.141 mg L −1 , 0.429 mg L −1 , 0.191 mg L −1 and 0.397 mg L −1 , respectively [ 38 ]. The EC 50 for Planothidium lanceolatum and Parachlorella kessleri Bh-2 were found to be 0.25 mg L −1 [ 39 ] and 0.3 mg L −1 [ 40 ], respectively. In this study, the EC 50 of S. obliquus was 0.41 ± 0.03 mg L −1 , which meant that S. obliquus has a high tolerance to Cd 2+ stress.…”

Section: Discussionmentioning

confidence: 99%

“…We also observed the rapid degradation of chloroplasts and mitochondria, the accumulation of electron-dense particles, and the production of starch granules under Cd 2+ stress. The accumulation of starch granules is usually considered as a protection for cells under stress conditions [ 40 ]. Upon exposure to Cd 2+ , accumulating starch granules can serve as a cellular energy store following damage to chloroplasts and mitochondria.…”

Section: Discussionmentioning

confidence: 99%

Cadmium-Induced Physiological Responses, Biosorption and Bioaccumulation in Scenedesmus obliquus

Xu,

Tu,

et al. 2024

Toxics

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Cadmium ion (Cd2+) is a highly toxic metal in water, even at low concentrations. Microalgae are a promising material for heavy metal remediation. The present study investigated the effects of Cd2+ on growth, photosynthesis, antioxidant enzyme activities, cell morphology, and Cd2+ adsorption and accumulation capacity of the freshwater green alga Scenedesmus obliquus. Experiments were conducted by exposing S. obliquus to varying concentrations of Cd2+ for 96 h, assessing its tolerance and removal capacity towards Cd2+. The results showed that higher concentrations of Cd2+ (>0.5 mg L−1) reduced pigment content, inhibited algal growth and electron transfer in photosynthesis, and led to morphological changes such as mitochondrial disappearance and chloroplast deformation. In this process, S. obliquus counteracted Cd2+ toxicity by enhancing antioxidant enzyme activities, accumulating starch and high-density granules, and secreting extracellular polymeric substances. When the initial Cd2+ concentration was less than or equal to 0.5 mg L−1, S. obliquus was able to efficiently remove over 95% of Cd2+ from the environment through biosorption and bioaccumulation. However, when the initial Cd2+ concentration exceeded 0.5 mg L−1, the removal efficiency decreased slightly to about 70%, with biosorption accounting for more than 60% of this process, emerging as the predominant mechanism for Cd2+ removal. Fourier transform infrared correlation spectroscopy analysis indicated that the carboxyl and amino groups of the cell wall were the key factors in removing Cd2+. In conclusion, S. obliquus has considerable potential for the remediation of aquatic environments with Cd2+, providing algal resources for developing new microalgae-based bioremediation techniques for heavy metals.

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“…Moreover, Nugroho et al (2017) reported that about 90% of Cu was adsorbed into Scenedesmus subspicatus, indicating algae's effectiveness for bioremediation. Besides that, Bauenova et al (2021) found that Cd (0.3 mg L − 1 ) and Cr (30 mg L − 1 ) were accumulated in the cytoplasm of Parachlorella kessleri. Meanwhile, Desmodesmus pleimorphus, Chlorella vulgaris and Scenedesmus obliquus can remove Cd from the contaminated environment (Alam et al, 2015;Monteiro et al, 2010;Shanmugam et al, 2018).…”

Section: Phycoremediationmentioning

confidence: 91%

Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

Zulkernain

Uvarajan

2023

Journal of Environmental Management

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Potential of microalgae Parachlorella kessleri Bh-2 as bioremediation agent of heavy metals cadmium and chromium

Cited by 26 publications

References 50 publications

Oleic Acid Facilitates Cd Excretion by Increasing the Abundance of Burkholderia in Cd-Exposed Mice

Oleic Acid Facilitates Cd Excretion by Increasing the Abundance of Burkholderia in Cd-Exposed Mice

Cadmium-Induced Physiological Responses, Biosorption and Bioaccumulation in Scenedesmus obliquus

Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

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