Bio-assessment and remediation of arsenic (arsenite As-III) in water by Euglena gracilis

Tahira, Sidra; Khan, Sanaullah; Samrana, Samrana; Shahi, Lubna; Ali, Imran; Murad, Waheed; Rehman, Zia Ur; Azizullah, Azizullah

doi:10.1007/s10811-018-1593-0

Cited by 18 publications

(6 citation statements)

References 63 publications

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“…(2016) reported also that soluble and insoluble carbohydrates in D. salina significantly decrease with increasing Cd(II) concentration. However, Tahira et al. (2019) noticed an increase in total sugar content in Euglena gracilis exposed to As(III) ions.…”

Section: Resultsmentioning

confidence: 91%

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Pb(II)-phycoremediation mechanism using Scenedesmus obliquus: cells physicochemical properties and metabolomic profiling

Danouche

Ghachtouli

Aasfar

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 91%

“…The pigments content was also assayed spectrophotometrically using the method of Tahira et al. (2019) .…”

Section: Methodsmentioning

confidence: 99%

Pb(II)-phycoremediation mechanism using Scenedesmus obliquus: cells physicochemical properties and metabolomic profiling

Danouche

Ghachtouli

Aasfar

et al. 2022

Heliyon

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“…At the highest dose of As-III, the total carotenoids ranged from 1.8 μg/mL to 0.4 μg/mL. In addition, chlorophylls were more sensitive than carotenoids; therefore, carotenoids could protect the cells from oxidative stress induced by arsenic [ 67 ].…”

Section: Cultivation Conditions and Carotenoids Accumulationmentioning

confidence: 99%

Carotenoids Biosynthesis, Accumulation, and Applications of a Model Microalga Euglenagracilis

Yao

et al. 2022

Marine Drugs

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The carotenoids, including lycopene, lutein, astaxanthin, and zeaxanthin belong to the isoprenoids, whose basic structure is made up of eight isoprene units, resulting in a C40 backbone, though some of them are only trace components in Euglena. They are essential to all photosynthetic organisms due to their superior photoprotective and antioxidant properties. Their dietary functions decrease the risk of breast, cervical, vaginal, and colorectal cancers and cardiovascular and eye diseases. Antioxidant functions of carotenoids are based on mechanisms such as quenching free radicals, mitigating damage from reactive oxidant species, and hindering lipid peroxidation. With the development of carotenoid studies, their distribution, functions, and composition have been identified in microalgae and higher plants. Although bleached or achlorophyllous mutants of Euglena were among the earliest carotenoid-related microalgae under investigation, current knowledge on the composition and biosynthesis of these compounds in Euglena is still elusive. This review aims to overview what is known about carotenoid metabolism in Euglena, focusing on the carotenoid distribution and structure, biosynthesis pathway, and accumulation in Euglena strains and mutants under environmental stresses and different culture conditions. Moreover, we also summarize the potential applications in therapy preventing carcinogenesis, cosmetic industries, food industries, and animal feed.

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“…A recent study also proposes Euglena-based toxicity assessments for rapid screening of arsenite (As-III), one of the most hazardous carcinogenic and genotoxic toxicants (Tahira et al, 2019). They showed that cell growth and photosynthetic pigments (chlorophyll-a, b, and total carotenoids) were significantly affected at higher concentrations of As-III, while slight stimulation was observed in motility, orientation, and cell compactness of the test flagellate.…”

Section: Heavy Metalsmentioning

confidence: 99%

Euglenoid Flagellates in Ecotoxicological Research: Progress and Perspectives

Kottuparambil¹

2022

Preprint

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Euglenoids are a common component of primary producers in high acidic and organic shallow freshwater systems. They are free-living photosynthetic motile flagellates exhibiting rapid responses to various external stimuli including chemical pollution. The unique combination of diverse physiological processes of Euglena such as photosynthesis, movement, and orientation offers a range of sensitive criteria that respond to aquatic pollutants. This has led to the development of several acute and chronic assay methods to monitor the adverse impacts of potent toxicants in aquatic ecosystems. Euglenoids also reflect the consequences of physical stress factors such as UV radiation. This review summarizes the ecotoxicity studies using euglenoid flagellates as model species and their potential to contribute toward rapid screening of ecological impacts of pollution in the aquatic environment. Factors determining the reliability of Euglena tests are outlined.

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Bio-assessment and remediation of arsenic (arsenite As-III) in water by Euglena gracilis

Cited by 18 publications

References 63 publications

Pb(II)-phycoremediation mechanism using Scenedesmus obliquus: cells physicochemical properties and metabolomic profiling

Pb(II)-phycoremediation mechanism using Scenedesmus obliquus: cells physicochemical properties and metabolomic profiling

Carotenoids Biosynthesis, Accumulation, and Applications of a Model Microalga Euglenagracilis

Euglenoid Flagellates in Ecotoxicological Research: Progress and Perspectives

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