Biodegradation of some dyes by the green Alga Chlorella vulgaris and the Cyanobacterium Aphanocapsa elachista

El‐Sheekh, Mostafa M.; Abou-El-Souod, Ghada W.; Asrag, Hayam A. El

doi:10.21608/ejbo.2018.2675.1145

Cited by 15 publications

(6 citation statements)

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“…In the case of a lower concentration, the microalgae requires a greater amount of nutrients, which can be obtained directly by breaking the azo bonds present in the dye, while, if it works at higher concentrations, the presence of high amounts of dye can have a toxic effect and inhibit the growth of the microalgae, demonstrated by Hernández-Zamora et al, 20 where negative physiological responses of C. vulgaris to concentrations greater than 400ppm of the Congo Red dye are evidenced. 21,22…”

Section: Results and Analysismentioning

confidence: 99%

Biodegradation of Erionyl Turquoise azoic textile dye from Chlorella vulgaris microalgae in simulated wastewater

Herrera¹,

Moreno²

2022

JTEFT

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Bioremediation capacity of azo dyes in simulated characteristics of textile wastewater from the microalgae Chlorella vulgaris was determined. The evaluation of the percentage of removal of Erionyl Turquoise was carried out through the measurement of the change of the final and initial absorbance during 15 days. The microalgae were exposed to different concentrations of the azo dye (30, 70 y 130ppm) and an initial pH of 9. Concurrently, the behavior of the microalgae C. vulgaris was compared with a natural pH of 8.3. The highest percentage of removal was 91.7% and this was obtained with a concentration of 70 ppm and an initial pH of 9, while the lowest percentage of removal was 51.5% with a concentration of 130 ppm of the Erionyl Turquoise and an initial pH of 9. In this way, it can be established that the microalgae C. vulgaris has a considerable ability to remove azo dyes under some characteristics of textile wastewater.

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Section: Results and Analysismentioning

confidence: 99%

Biodegradation of Erionyl Turquoise azoic textile dye from Chlorella vulgaris microalgae in simulated wastewater

Herrera¹,

Moreno²

2022

JTEFT

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“…Microalgae can degrade various types of dyes into carbon and nitrogen sources and then remove them from water, which leads to a reduction in eutrophication in the ecosystem. Numerous studies have been conducted, and researchers have documented the biodegradation of various dyes by a variety of microalgae species, such as Chlorella spp., Scenedesmus spp., and Aphanocapsa spp., depending on the dye’s molecular geometry, the algae species, and metabolism azo-reductase enzymes [ 65 , 70 ]. Microalgae was found to removes dyes in a variety of ways, including biosorption, bioconversion, and biodegradation.…”

Section: Algae As An Organic Biodegradationmentioning

confidence: 99%

“…Microalgae and cyanobacteria are known as promising candidates for the biodegradation microorganisms for a variety of pollutants [ 70 ] in comparison to bacteria and fungi, which require carbon input, energy, nutritional sources, and other supplements to remove pollutants, with fixed carbon eventually entering the atmospheric carbon pool, which is increasing alarmingly as a result of the use of fossil fuels for a variety of human activities [ 65 , 110 ]. Another economic benefit of phycoremediation is the high production of algal biomass, which is facilitated by organic pollutants, resulting in high pollutant absorption and accumulation.…”

Section: Advantages Of Phycoremediation Treatmentmentioning

confidence: 99%

A Review of Microalgae- and Cyanobacteria-Based Biodegradation of Organic Pollutants

et al. 2022

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This review proposes a new bioremediation method based on the diverse functionalities of algae. A greenway for cleansing wastewater is more ecologically friendly and environmentally sustainable than prior methods with other bacteria. New bioremediation technology employing algae and cyanobacteria for the removal of a wide range of organic contaminants is reasonable and has great potential. The prevalence of organic contaminants in aquatic habitats may endanger the health and well-being of several marine creatures. Agriculture, industry, and household trash are just a few of the human-caused sources of organic pollutants that contaminate waterways around the world. Before wastewater can be released into waterways, it must be cleaned. Algae-based wastewater treatment systems are becoming increasingly popular because of their environmental sustainability and lack of secondary pollutants. According to the kind of pollutant, the physicochemical properties of wastewater, and the algal species, algae and cyanobacteria can absorb and accumulate a wide spectrum of organic pollutants at different rates. In addition, phytoremediation is a cost-effective alternative to conventional treatments for degrading organic contaminants. Phycoremediationally produced algal biomass may also be an important part of the bioenergy value chain. This article focuses on microalgae and cyanobacteria species, which may remove many organic contaminants from water systems.

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“…A phylogenetic study on Arctic Zygnema populations highlighted an unsuspected hidden diversity within communities composed of morphologically very similar filaments, stressing the importance of a full life cycle for species determination (Pichrtová et al, 2018). Unfortunately, the induction of sexual reproduction under laboratory conditions has only been successful in a few cases in Zygnema and other genera (Czurda, 1930;El-Sheekh et al, 2018;Ikegaya et al, 2012;Pfeifer et al, 2022;Renkert, 1987;Takano et al, 2019;Zwirn et al, 2013). The majority of the successful studies were conducted on Spirogyra sp.…”

Section: Introductionmentioning

confidence: 99%

3D‐reconstructions of zygospores in Zygnema vaginatum (Charophyta) reveal details of cell wall formation, suggesting adaptations to extreme habitats

Permann,

Pichrtová,

Šoljaková

et al. 2023

Physiologia Plantarum

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The streptophyte green algal class Zygnematophyceae is the immediate sister lineage to land plants. Their special form of sexual reproduction via conjugation might have played a key role during terrestrialization. Thus, studying Zygnematophyceae and conjugation is crucial for understanding the conquest of land. Moreover, sexual reproduction features are important for species determination. We present a phylogenetic analysis of a field‐sampled Zygnema strain and analyze its conjugation process and zygospore morphology, both at the micro‐ and nanoscale, including 3D‐reconstructions of the zygospore architecture. Vegetative filament size (26.18 ± 1.07 μm) and reproductive features allowed morphological determination of Zygnema vaginatum, which was combined with molecular analyses based on rbcL sequencing. Transmission electron microscopy (TEM) depicted a thin cell wall in young zygospores, while mature cells exhibited a tripartite wall, including a massive and sculptured mesospore. During development, cytological reorganizations were visualized by focused ion beam scanning electron microscopy (FIB‐SEM). Pyrenoids were reorganized, and the gyroid cubic central thylakoid membranes, as well as the surrounding starch granules, degraded (starch granule volume: 3.58 ± 2.35 μm3 in young cells; 0.68 ± 0.74 μm3 at an intermediate stage of zygospore maturation). Additionally, lipid droplets (LDs) changed drastically in shape and abundance during zygospore maturation (LD/cell volume: 11.77% in young cells; 8.79% in intermediate cells, 19.45% in old cells). In summary, we provide the first TEM images and 3D‐reconstructions of Zygnema zygospores, giving insights into the physiological processes involved in their maturation. These observations help to understand mechanisms that facilitated the transition from water to land in Zygnematophyceae.

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Biodegradation of some dyes by the green Alga Chlorella vulgaris and the Cyanobacterium Aphanocapsa elachista

Cited by 15 publications

References 0 publications

Biodegradation of Erionyl Turquoise azoic textile dye from Chlorella vulgaris microalgae in simulated wastewater

Biodegradation of Erionyl Turquoise azoic textile dye from Chlorella vulgaris microalgae in simulated wastewater

A Review of Microalgae- and Cyanobacteria-Based Biodegradation of Organic Pollutants

3D‐reconstructions of zygospores in Zygnema vaginatum (Charophyta) reveal details of cell wall formation, suggesting adaptations to extreme habitats

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