Construction of fungi-microalgae symbiotic system and adsorption study of heavy metal ions

Wang, Junjun; Chen, Ran; Fan, Ling; Cui, Linlin; Zhang, Yejuan; Cheng, Jason Chia‐Hsien; Wu, Xueling; Zeng, Weimin; Tian, Qinghua; Shen, Li

doi:10.1016/j.seppur.2021.118689

Cited by 81 publications

(26 citation statements)

References 43 publications

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“…Environmental pollution has always been a major fatal problem that plagues mankind, among which water pollution is the most prominent problem. In a modern society with rapid industrial development, the discharge of wastewater caused by industrial production has become more and more serious, which has caused different levels of pollution in rivers and lakes [1,2]. Heavy metal ions and dyes in wastewater can enter the human body under the action of biological circulation and eventually pose a potential threat to human health.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Functionalized Biomass Carbon-Based Adsorbent for Simultaneous Removal of Pb2+ and MB in Wastewater

2021

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It is of great significance to realize the sustainable development of the environment to synthesize functional materials by value-added utilization of waste resources. Herein, a composite material of polyacrylic acid/lignosulfonate sodium/cotton biochar (PAA/LS/BC) was successfully prepared by grafting polyacrylic acid with functionalized waste cotton biochar and lignosulfonate sodium. The obtained absorbent showed prominent capture ability toward Pb2+ and methylene blue (MB) with capture characteristics of the pseudo-second-order model and Langmuir isotherm model. This experiment explored the adsorption performance of the adsorbent for pollutants at different conditions, and further revealed the selective adsorption of Pb2+ and MB in the mixed system. Analysis confirmed that electrostatic attraction and complexation are the most critical methods to remove contaminants. Additionally, the regeneration and stability experiment showed that the adsorption capacity of PAA/LS/BC for pollutants did not significantly decrease after five runs of adsorption–desorption. Various results can demonstrate that the adsorbent has excellent performance for removing pollutants and can be used as a material with development potential in the field of adsorption.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Functionalized Biomass Carbon-Based Adsorbent for Simultaneous Removal of Pb2+ and MB in Wastewater

2021

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“…Wang et al reported that mycelial pellets ( Aspergillus fumigatus ) and Synechocystis sp. PCC6803 comprised a fungus–microalgae symbiotic system, assisting microalgae flocculation and immobilization and the adsorption behavior for HMs [ 33 ]. The co-cultivation of microalgae with filamentous fungi is a superior method to efficiently accumulate and harvest the total biomass, and to remove pollutants from water [ 34 ].…”

Section: Resultsmentioning

confidence: 99%

Fungus–Fungus Association of Boletus griseus and Hypomyces chrysospermus and Cadmium Resistance Characteristics of Symbiotic Fungus Hypomyces chrysospermus

Zhang

Wang

Zhuang

et al. 2022

JoF

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Fungi bioaccumulation of heavy metals is a promising approach to remediate polluted soil and water. Boletus griseus could accumulate high amounts of Cd, even in a natural habitat with low Cd contents. This study found a symbiotic association of B. griseus with a fungus. The symbiotic fungus was isolated and identified as Hypomyces chrysospermus. The isolated strain had a strong ability to tolerate Cd. The minimum inhibitory concentration of Cd of fungal growth was 200 mg·L−1. The Cd bioaccumulation capacity of the fungus reached 10.03 mg·g−1. The biomass production of the fungus was promoted by 20 mg·L−1 Cd. However, high concentrations of Cd suppressed fungal growth and significantly altered the morphology and fine texture of fungal hyphae and chlamydospores. The immobilization effects of the cell wall and acid compounds and antioxidant enzymes were employed by the fungus to alleviate the toxic effects of Cd. The results not only demonstrate a new insight into the Cd bioconcentration mechanisms of B. griseus but also provide a potential bioremediation fungus for Cd contamination.

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“…This can be economically challenging because of microalgae’s small size (2–40 μm), motility, negatively charged surface, and low cell density (0.3–0.5 g/L) [ 133 , 134 ]. In fact, harvesting can account for more than 50% of total production costs [ 52 ]. Different approaches have been used to collect microalgae, and each of them has evident limitations [ 52 , 54 , 135 ].…”

Section: Co-culture Of Fungi-microalgae: the Biotechnological Usementioning

confidence: 99%

“…In fact, harvesting can account for more than 50% of total production costs [ 52 ]. Different approaches have been used to collect microalgae, and each of them has evident limitations [ 52 , 54 , 135 ]. Fungi have potential as bio-flocculants since self-pelletization of fungi occurs in various fungal strains.…”

Section: Co-culture Of Fungi-microalgae: the Biotechnological Usementioning

confidence: 99%

“…In commercial cultivations, fungi contamination is of particular concern [ 47 ]. On the other hand, according to recent literature, the microalgae-fungi interaction can be used to improve wastewater treatment, to facilitate cultivation management, and to produce valuable metabolites [ 20 , 48 , 49 , 50 , 51 , 52 , 53 , 54 ]. In fact, fungi are often used in co-cultures as they can promote the flocculation of microalgae, improving their harvesting without using more expensive chemical flocculants [ 37 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 ].…”

Section: Introductionmentioning

confidence: 99%

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Fungal Contamination in Microalgal Cultivation: Biological and Biotechnological Aspects of Fungi-Microalgae Interaction

Laezza

Salbitani

Carfagna

2022

JoF

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In the last few decades, the increasing interest in microalgae as sources of new biomolecules and environmental remediators stimulated scientists’ investigations and industrial applications. Nowadays, microalgae are exploited in different fields such as cosmeceuticals, nutraceuticals and as human and animal food supplements. Microalgae can be grown using various cultivation systems depending on their final application. One of the main problems in microalgae cultivations is the possible presence of biological contaminants. Fungi, among the main contaminants in microalgal cultures, are able to influence the production and quality of biomass significantly. Here, we describe fungal contamination considering both shortcomings and benefits of fungi-microalgae interactions, highlighting the biological aspects of this interaction and the possible biotechnological applications.

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Construction of fungi-microalgae symbiotic system and adsorption study of heavy metal ions

Cited by 81 publications

References 43 publications

RETRACTED: Functionalized Biomass Carbon-Based Adsorbent for Simultaneous Removal of Pb2+ and MB in Wastewater

RETRACTED: Functionalized Biomass Carbon-Based Adsorbent for Simultaneous Removal of Pb2+ and MB in Wastewater

Fungus–Fungus Association of Boletus griseus and Hypomyces chrysospermus and Cadmium Resistance Characteristics of Symbiotic Fungus Hypomyces chrysospermus

Fungal Contamination in Microalgal Cultivation: Biological and Biotechnological Aspects of Fungi-Microalgae Interaction

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