Effects of five heavy metals at sub-lethal concentrations on the growth and photosynthesis of Chlorella vulgaris

Ouyang, Haibin; Kong, Xiangzhen; He, Wei; Qin, Ning; He, Qi-Shuang; Yan, Wang; Wang, Rong; Xu, Fu-Liu

doi:10.1007/s11434-012-5366-x

Cited by 89 publications

(52 citation statements)

References 18 publications

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“…Cu may also impair the PSII electron transport on its reducing side by affecting the rate of oxidoreduction [148]. The inhibitory effect of copper on the photosynthetic apparatus of several species of algae has been examined, including E. gracilis [149,150], S. quadricauda [141], S. obliquus [151], S. incrassatulus [152], C. pyrenoidosa [153], C. vulgaris [154], Planothidium lanceolatum and Isochrysis galbana [155], D. tertiolecta, Promocentrum minimum, Synechococcus sp., and Thalassiosira weissflogii [145].…”

Section: Juarez Et Al (2008) [158]mentioning

confidence: 99%

“…Stimulatory effects on algal photosynthesis at low exposure concentrations of Zn 2+ have been observed. For example, C. vulgaris after 96 h of exposure at treatment concentration of 5 μmol L −1 showed that the proportion of the maximum quantum yield of PSII promoted by Zn was approximately 10% [154]. However, when the external concentration of Zn 2+ is beyond a limited value, it causes harmful effects; hence, its concentration in the cells must be controlled.…”

Section: Juarez Et Al (2008) [158]mentioning

confidence: 99%

“…In another survey assessing the effect of Cu 2+ , Cr 6+ , and Ni 2+ on growth, photosynthesis, and chlorophyll, a synthesis of C. pyrenoidosa, it was demonstrated that various bimetallic combinations of those metals interacted synergistically [171]. Combined effects of Cu 2+ and Cd 2+ on the growth and photosynthesis-related gene transcription of C. vulgaris have been also investigated [154].…”

Section: Juarez Et Al (2008) [158]mentioning

confidence: 99%

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Effects on the Photosynthetic Activity of Algae after Exposure to Various Organic and Inorganic Pollutants: Review

Petsas¹,

Vagi²

2017

Chlorophyll

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Algal studies remain necessary for risk assessment and their utility in ecotoxicology is the evaluation of lethal and sub-lethal toxic effects of potential toxicants on inhabitants of several ecosystems. Effects on algal photosynthetic apparatus caused by various chemical species have been extensively studied. The present chapter summarizes the published data concerning the toxicity of various organic and inorganic pollutants such as oils, pesticides, antifoulants and metals on photosynthesis of aquatic primary producers. Biochemical mode of action resulting in the disruption of photosynthesis depends on the chemical's nature and the characteristics of the exposed microorganism. Observed differences in response and sensitivity by different species to the same toxicant were attributed to several algal characteristics including photosynthetic capacity, pigment type, cellular lipid and protein content, and cell size. Single species bioassays either for one chemical alone or in mixture have been well reported and tolerance of both marine and freshwater water-column phytoplaktonic species has been examined. Adequate published information on multispecies tests (communities) in laboratory and field studies exists. However, risk assessment on photosynthesis of microbenthic periphyton is inadequate, though it is essential especially for hydrophobic organic molecules. Further studies are required to evaluate the adverse effects of metabolites on aquatic microalgae.

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Section: Juarez Et Al (2008) [158]mentioning

confidence: 99%

Section: Juarez Et Al (2008) [158]mentioning

confidence: 99%

Section: Juarez Et Al (2008) [158]mentioning

confidence: 99%

See 1 more Smart Citation

Effects on the Photosynthetic Activity of Algae after Exposure to Various Organic and Inorganic Pollutants: Review

Petsas¹,

Vagi²

2017

Chlorophyll

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“…In addition, compared with Ni, Pb showed a higher toxicity. However, Ouyang et al (2012) investigated and compared the effects of several heavy metals on chlorella toxicity, and the results showed that Pb did not cause any effect on Chlorella vulgaris. The reasons for this may be that the Microcystis flos-aquae used in the present study was the prokaryotic cyanobacteria, and the algae Chlorella vulgaris was eukaryotic algae.…”

Section: Adsorption Capacity Of Algicide To Heavy Metalsmentioning

confidence: 99%

Effects of algicide on the growth of Microcystis flos-aquae and adsorption capacity to heavy metals

Liu

Wen

Chen

2014

Int. J. Environ. Sci. Technol.

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In this paper, the effects of salicylic acid (SA) algicide carried by cross-linked chitosan on the inhibition of Microcystis flos-aquae and the removal ability of heavy metals Pb and Ni in compound polluted water were studied. The results showed that the algicide had significant inhibitory effects on Microcystis flos-aquae: when the concentrations were 550 and 700 mg L -1 , the inhibition time was up to 13 days or more, and the inhibition rate was as high as 99 %. The algicide exhibited strong adsorption capacity to heavy metals Pb and Ni. The adsorption rates of the algicide at concentrations of 400 and 550 mg L -1 on Ni and Pb were 61 and 64.9 %, 71.2 and 72.5 % at 13 days, respectively. The algicide allows a slow release of SA and long-term inhibition of algae and has better adsorption capacity on heavy metals, thus providing a method for the effective control of eutrophication and combined heavy metal pollution in water.

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“…At sub-lethal concentrations, Ouyang et al discovered that the addition of Cu at 5 μmol/L in algae culture vastly inhibited the growth of Chlorella, and similar inhibitory phenomenon were also observed in the same concentration for Cr [5]. Nevertheless, compared with other heavy metals such as Cd, Cu, As, and Sb, Pb with a higher IC 50 to Chlorococcum seems to be less hazardous in aquatic systems [6].…”

mentioning

confidence: 93%

How Chlorella sorokiniana and its High Tolerance to Pb Might be a Potential Pb Biosorbent

Liang¹,

Kang²,

Zeng³

et al. 2017

Pol. J. Environ. Stud.

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With the dynamic development of industrialization and urbanization, the entrance of heavy metals from industrial discharge, domestic sewage, and atmospheric deposition into natural water, even at low concentrations, has induced a series of potential impacts on both aquatic ecosystems and human health [1]. Being an essential part of primary productivity, algae show high sensitivity to various heavy metals such as Pb [2]. Consequently, algae serve as a testing model to evaluate the quality of freshwater and estimate the toxicity of pollutants. By now, numerous studies have illustrated that most heavy metals, including Cd, Pb, Cu, and Ni, can interfere with the photosynthesis and enzymatic metabolism of algae, which results in growth inhibition and even death. Choudhary et al. found that Pb, Cu, and Zn could generate reactive oxygen species (ROS) and attack biomolecules within the cells, further leading to irreversible adverse effects on Spirulina [3]. The analogous toxic mechanism of Cu on the green Pol. J. Environ. Stud. Vol. 26, No. 3 (2017) AbstractThe link between the acute toxicity of heavy metals on algae and the bioadsorption capacity of heavy metals by algae has seldom been reported. In the present study, an acute toxicity experiment was carried out to assess the toxic effects of Pb, Cu, and Cd for Chlorella sorokiniana, and the 96 h IC 50 values were 0.249 mg/L, 0.485 mg/L, 46.108 mg/L, and 21.00 mg/L for Cu, Cd, Pb (total), and Pb (free ion), respectively, which implied that Chlorella sorokiniana showed high tolerance to Pb compared to Cu and Cd. Pb distribution analysis indicated that 73.40% to 98.15% of free Pb ions were accumulated on the algae cell wall to avoid further intracellular accumulation, resulting in irreversible metabolic disorders. Then the adsorption capacity of Chlorella was explored. It could be found that the Langmuir model (the R 2 were 0.988 and 0.962 for living and lifelss cells, respectively) was fit to explain the adsorption equilibrium data and the q e calculated by this model were 1.54 and 2.97 mg /10 10 cells for living and lifeless cells, respectively, which was consistent with the experimental result. In the competitive adsorption, Chlorella exhibited a greater affinity for Pb with the higher removal rate compared to Cu and Ni. Therefore, the renewable Chlorella sorokiniana and its dramatic resistance to Pb may serve as a potential biosorbent for Pb in the future.

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Effects of five heavy metals at sub-lethal concentrations on the growth and photosynthesis of Chlorella vulgaris

Cited by 89 publications

References 18 publications

Effects on the Photosynthetic Activity of Algae after Exposure to Various Organic and Inorganic Pollutants: Review

Effects on the Photosynthetic Activity of Algae after Exposure to Various Organic and Inorganic Pollutants: Review

Effects of algicide on the growth of Microcystis flos-aquae and adsorption capacity to heavy metals

How Chlorella sorokiniana and its High Tolerance to Pb Might be a Potential Pb Biosorbent

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