Effects of Cu2+ and Zn2+ on growth and physiological characteristics of green algae, Cladophora

Cao, De-ju; Xie, Pan-pan; Deng, Juan-wei; Zhang, Huimin; Ma, Ru-xiao; Liu, Cheng; Liu, Ren-jing; Liang, Yue-gan; Li, Hao; Shi, Xiaodong

doi:10.1007/s11356-015-4847-2

Cited by 39 publications

(14 citation statements)

References 33 publications

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“…Despite the ability to tolerate Cu in the growth media, the exposure to Cu had an adverse effect on growth and cellular pigment content. Such effects have been previously observed and reported in other marine and freshwater algal species [8,10,16,17,18,19]. Although overall cell growth was reduced in cultures containing Cu we also found that the percentage of cell type was changed.…”

Section: Discussionsupporting

confidence: 89%

“…As such, bioaccumulation of the Cu from these polluted waterways is a potential approach for heavy metal bioremediation. Although the efficiency of heavy metal removal by algae and its effect on algal growth has been well characterized for some species [8,10,16,17,18,19] the biochemical mechanisms that are associated with algae tolerating high concentrations of Cu tolerance are not clearly defined or understood. In addition, Desmodesmus (Chlorophyta, Chlorophyceae) is the genera that frequently found distributed in the freshwater resources over the north and north-eastern of Thailand [20].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Copper and pH on the Growth and Physiology of Desmodesmus sp. AARLG074

et al. 2019

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Copper (Cu) is a heavy metal that is widely used in industry and as such wastewater from mining or industrial operations can contain high levels of Cu. Some aquatic algal species can tolerate and bioaccumulate Cu and so could play a key role in bioremediating and recovering Cu from polluted waterways. One such species is the green alga Desmodesmus sp. AARLG074. The aim of this study was to determine how Desmodesmus is able to tolerate large alterations in its external Cu and pH environment. Specifically, we set out to measure the variations in the Cu removal efficiency, growth, ultrastructure, and cellular metabolite content in the algal cells that are associated with Cu exposure and acidity. The results showed that Desmodesmus could remove up to 80% of the copper presented in Jaworski’s medium after 30 min exposure. There was a decrease in the ability of Cu removal at pH 4 compared to pH 6 indicating both pH and Cu concentration affected the efficiency of Cu removal. Furthermore, Cu had an adverse effect on algal growth and caused ultrastructural changes. Metabolite fingerprinting (FT-IR and GC-MS) revealed that the polysaccharide and amino acid content were the main metabolites affected under acid and Cu exposure. Fructose, lactose and sorbose contents significantly decreased under both acidic and Cu conditions, whilst glycerol and melezitose contents significantly increased at pH 4. The pathway analysis showed that pH had the highest impact score on alanine, aspartate and glutamate metabolism whereas Cu had the highest impact on arginine and proline metabolism. Notably both Cu and pH had impact on glutathione and galactose metabolism.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Effects of Copper and pH on the Growth and Physiology of Desmodesmus sp. AARLG074

et al. 2019

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“…The effect of zinc on Cladocera is obviously med iated, and is connected with the distribution of food items -green algae. Between the green algae biomass in the Shardara reservoir and zinc, we found a statistically significant positive relat ionship (Krupa et al, 2017), wh ich may be due to the stimulat ing effect of low concentrations of zinc on phytoplankton (Cao et al, 2015). Lethal concentration of lead to cladocerans are two orders of magnitude higher (more than 3.0 mg L -1 ) (Garcı´a-Ga rcı´ et al, 2006), and potentially dangerous concentration -one order of magnitude higher (0.19 mg L -1 ) (Offem & Ayotunde, 2008) than the amount of lead in water of the Shardara reservoir (0.034 mg L -1 ).…”

Section: Discussionmentioning

confidence: 56%

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Krupa¹,

Barınova²,

Asylbekova³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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The Shardara reservoir is located in southernmost Kazakhstan, in the zone of intensive farming and industrial development. Zooplankton and basic parameters of the environment have been studied in the summer of 2015. Zooplankton was represented by 60 species. The average abundance of the community amounted to 92.9 thous. specimens m -3 , with biomass of 966.0 mg m -3 . Copepods and rotifers dominated. The Shannon index values were equal to 2.24 bit specimen -1 and 1.23 bit mg -1 . The average individual mass of a specimen reached 0.0082 mg. Nonparametric and multivariate analysis of the data showed that macrophytes, nitrates, total nitrogen, organic polyphosphates, and copper favorably influenced Rotifera. Possible reasons for a positive relationship between quantitative indicators of Cladocera and zinc content are discussed. The main negative factors for Copepoda were organic polyphosphates, nitrites, total nitrogen, cadmium, and lead. Decrease in the Shannon index values under the influence of cadmium, ammonium, HCCH isomers is associated with increased dominance of Acanthocyclops trajani in the contaminated areas. There was no significant impact of heavy metals and pesticides on most of the structural indicators of zooplankton which can be due to the complex nature of contamination of the reservoir.

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“…Studies have shown that algal cells are also sensitive to other metal ions such as Cu 2+ and Zn 2+. Therefore, the synthesis of MOFs based on other metal ions for algae removal is the current research direction. At present, the research on the removal efficiency of MOFs is in its infancy.…”

Section: Introductionmentioning

confidence: 99%

Growth Inhibition of Microcystis aeruginosa by Copper‐based MOFs: Performance and Physiological Effect on Algal Cells

Fan

Zheng

Chen

2018

Applied Organom Chemis

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The problem of cyanobacteria bloom occurring in the eutrophic water increases more serious and urgent needs to be solved. Based on the advantages of Metal-organic frameworks (MOFs), some reported studies have evaluated the inhibition effect of MOFs on algae. However, the influence of that on the physiological characteristics of algal cells has not been investigated thoroughly.In this study, Cu-MOF-74 was successfully synthesized by a facile hydrothermal method and was characterized by XRD and SEM. The growth inhibition of Microcystis aeruginosa were conducted to explore the effects of Cu-MOF-74 based on the physiology of algal cells to reveal algae inhibition mechanism. The results showed that the synthesized Cu-MOF-74 was a large needle-shaped crystal, and the size of the grain was 3-4.5 μm. 1 mg/L of Cu-MOF-74 has relatively excellent inhibitory effect on algae, which can achieve the removal efficiency of 75.5% within 120 hr. Besides, the content of chlorophyll a decreased by about 56%, the diminishing of chlorophyll a and phycobiliprotein concentration resulted in photosystem damage. In this process, ROS accumulated continually in algal cells with the slow release of metal ions Cu 2+ of Cu-MOF-74 which acts as a 'reservoir', then causing the oxidation loss, the reduction of SOD activity and the increase of CAT activity. The hydroxyl radical generated by Cu-MOF-74 caused lipid peroxidation. Thereby the situation above eventually resulted in the death of Microcystis aeruginosa and the concentration of extracellular organic matter increased. All the above, we think Cu-MOF-74 can inhibit the growth of algal cells through effecting on physiology and can be applied to control the cyanobacteria blooms.

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Effects of Cu2+ and Zn2+ on growth and physiological characteristics of green algae, Cladophora

Cited by 39 publications

References 33 publications

Effects of Copper and pH on the Growth and Physiology of Desmodesmus sp. AARLG074

Effects of Copper and pH on the Growth and Physiology of Desmodesmus sp. AARLG074

Untitled

Growth Inhibition of Microcystis aeruginosa by Copper‐based MOFs: Performance and Physiological Effect on Algal Cells

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