Study of the parameters affecting the binding of metals in solution by Chlorella vulgaris

López-Suárez, Carlos; Castro-Romero, J. M.; Gonzalez-Rodriguez, M. V.; González-Soto, E.; Pérez-Iglesias, J.; Seco-Lago, H.; Fernández-Solís, J. M.

doi:10.1016/s0039-9140(99)00214-3

Cited by 15 publications

(5 citation statements)

References 11 publications

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“…Despite this, a large number of prokaryotic and eukaryotic organisms can still be identified living in the presence of high concentrations of heavy metals (Nixdorf et al 1998;López-Suárez et al 2000;Amaral et al 2002). Miao et al (2005) found that the toxicity of Cd in different marine phytoplankton, including the diatom Thalassiosira weissflogii, the green alga Dunaliella tertiolecta, the cyanobacterium Synechococcus sp.…”

Section: Introductionmentioning

confidence: 99%

Assessment of growth rate, chlorophyll a fluorescence, lipid peroxidation and antioxidant enzyme activity in Aphanizomenon flos-aquae, Pediastrum simplex and Synedra acus exposed to cadmium

Ran

Liu

et al. 2014

Ecotoxicology

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In this study, the effects of cadmium on the cyanobacterium Aphanizomenon flos-aquae, the green alga Pediastrum simplex and the diatom Synedra acus was evaluated on the basis of growth rate, chlorophyll a fluorescence, lipid peroxidation and antioxidant enzyme activity. The EC50 values (effective concentration inducing 50 % of growth inhibition) of cadmium in A. flos-aquae, P. simplex and S. acus were 1.18 ± 0.044, 4.32 ± 0.068 and 3.7 ± 0.055 mg/L, respectively. The results suggested that cadmium stress decreases growth rate and chlorophyll a concentration. The normalized chlorophyll a fluorescence transients significantly increased at cadmium concentrations of 5.0, 10.0 and 20.0 mg/L, but slightly decreased at concentrations of 0.2, 0.5 and 1.0 mg/L. The chlorophyll fluorescence parameters showed considerable variation among the three species, while lipid peroxidation and antioxidant enzyme activities showed a significant increase. Our results demonstrated that blockage of electron transport on the acceptor side of photosystem II is the mechanism responsible for cadmium toxicity in freshwater microalgae, and that the tolerance of the three species to cadmium was in the order green alga P. simplex > diatom S. acus > cyanobacterium A. flos-aquae.

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Section: Introductionmentioning

confidence: 99%

Assessment of growth rate, chlorophyll a fluorescence, lipid peroxidation and antioxidant enzyme activity in Aphanizomenon flos-aquae, Pediastrum simplex and Synedra acus exposed to cadmium

Ran

Liu

et al. 2014

Ecotoxicology

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“…For example, potential tools for bioremediation of Cr pollution using algae have been described (Cervantes et al 2001), and it seems clear that different species of algae accumulate metals to various degrees (Jordanova et al 1999). Many parameters affect the accumulation of heavy metals from solution by Chlorella vulgaris (Bajguz 2000, López-Suárez et al 2000. Likewise, the biological concentration factor (defined as C b /C w , where C b is the metal concentration in the biota expressed as mmol or mg g À 1 of dry weight and C w is the metal concentration in water given in mmol or mg mL À 1 ) for Cu, Pb, Cd, and Hg in Porphyra spp.…”

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confidence: 99%

HEAVY METAL–INDUCED OXIDATIVE STRESS IN ALGAE¹

Pinto

Sigaud-Kutner

Leitão

et al. 2003

Journal of Phycology

939

450

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Heavy metals, depending on their oxidation states, can be highly reactive and, as a consequence, toxic to most organisms. They are produced by an expanding variety of anthropogenic sources suggesting an increasingly important role for this form of pollution. The toxic effect of heavy metals appears to be related to production of reactive oxygen species (ROS) and the resulting unbalanced cellular redox status. Algae respond to heavy metals by induction of several antioxidants, including diverse enzymes such as superoxide dismutase, catalase, glutathione peroxidase and ascorbate peroxidase, and the synthesis of low molecular weight compounds such as carotenoids and glutathione. At high, or acute, levels of metal pollutants, damage to algal cells occurs because ROS levels exceed the capacity of the cell to cope. At lower, or chronic, levels algae accumulate heavy metals and can pass them on to organisms of other trophic levels such as mollusks, crustaceans, and fishes. We review here the evidence linking metal accumulation, cellular toxicity, and the generation of ROS in aquatic environments.

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“…antagonistic effect of Cd and Zn in some algal species or synergistic effect of Ni 2+ and Cu 2+ in membrane transport of metals). Lopez-Suarez et al (2000) [28] found that C. vulgaris strongly binds heavy metals such as Mn, Cr, Ni, Zn and Cu and they reported that the strongest bonds were observed for Cr and Cu. The results of these reports were found to be consistent with the findings obtained in our study.…”

Section: Discussionmentioning

confidence: 99%

Quaternary Adsorption Effect of Nickel (II), Antimony (III), Manganese (II) and Copper (II) onto Living Two Green Microalgae

Şentürk¹,

Yıldız²

2018

Cumhuriyet Science Journal

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This study aimed to investigate Ni, Sb, Mn and Cu adsorption from aqueous solution by Chlorella and Scenedesmus algae. The competitive adsorption efficiency of nickel (Ni 2+), antimony (Sb 3+), manganese (Mn 2+) and copper (Cu 2+) onto two living microalgae strains was studied from multi-metal aqueous solution for 24h incubation time. After exposure, chlorophyll a-b, total carbohydrate and Atomic force microscopy (AFM) imaging were performed. Then adsorption isotherms models of metal ions were determined based on Langmuir and Freundlich isotherms. The adsorption capacity in multi-metal system was determined 6.47 mgg-1 for antimony, 5.96 mgg-1 for manganese, 28.57 mgg-1 for copperand 10.71 mgg-1 for nickel (Cu>Ni>Sb>Mn) by Chlorella respectively, whereas, and 10.82 mg g-1 for antimony, 7.07 mgg-1 for manganese, 27.09 mgg-1 for copper and 9.71 mgg-1 for nickel(Cu>Sb>Ni>Mn) by Scenedesmus cells. According to AFM images, deformation was detected in two algae cell walls treated with heavy metals compared to untreated cells. For this study, Freundlich adsorption model best fitted the data for all metal ions with 1/n value <1. As a result, when the results obtained in the study are revealed that Chlorella and Scenedesmus cells were an effective adsorbent for removal of the four heavy metals, especially Cu 2+ ions from aqueous solutions due to its high efficiency of Cu adsorption.

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Study of the parameters affecting the binding of metals in solution by Chlorella vulgaris

Cited by 15 publications

References 11 publications

Assessment of growth rate, chlorophyll a fluorescence, lipid peroxidation and antioxidant enzyme activity in Aphanizomenon flos-aquae, Pediastrum simplex and Synedra acus exposed to cadmium

Assessment of growth rate, chlorophyll a fluorescence, lipid peroxidation and antioxidant enzyme activity in Aphanizomenon flos-aquae, Pediastrum simplex and Synedra acus exposed to cadmium

HEAVY METAL–INDUCED OXIDATIVE STRESS IN ALGAE¹

Quaternary Adsorption Effect of Nickel (II), Antimony (III), Manganese (II) and Copper (II) onto Living Two Green Microalgae

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Study of the parameters affecting the binding of metals in solution by Chlorella vulgaris

Cited by 15 publications

References 11 publications

Assessment of growth rate, chlorophyll a fluorescence, lipid peroxidation and antioxidant enzyme activity in Aphanizomenon flos-aquae, Pediastrum simplex and Synedra acus exposed to cadmium

Assessment of growth rate, chlorophyll a fluorescence, lipid peroxidation and antioxidant enzyme activity in Aphanizomenon flos-aquae, Pediastrum simplex and Synedra acus exposed to cadmium

HEAVY METAL–INDUCED OXIDATIVE STRESS IN ALGAE1

Quaternary Adsorption Effect of Nickel (II), Antimony (III), Manganese (II) and Copper (II) onto Living Two Green Microalgae

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HEAVY METAL–INDUCED OXIDATIVE STRESS IN ALGAE¹