Microorganisms-based methods for harmful algal blooms control: A review

Sun, Rui; Sun, Pengfei; Zhang, Jianhong; Esquivel-Elizondo, Sofia; Wu, Yonghong

doi:10.1016/j.biortech.2017.07.175

Cited by 227 publications

(104 citation statements)

References 89 publications

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“…For example, ultrasound techniques have been confirmed at up‐scaled levels, the use of membrane filtration technology on the control of cyanobacteria bloom is too expensive, herbicides may result in secondary pollution. In addition, there are some risks in introducing algae‐killing organisms . Therefore, it's essential to find a new way to solve the problem of cyanobacteria blooms.…”

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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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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“…It generates foul smells and toxins which seriously affect the urban landscape and threaten the health of citizens. Various categories of governance approaches have been carried out to clear algal bloom, including physical, chemical, biological, and ecological approaches [2,3]. The advantages and application conditions of each approach are different.…”

Section: Introductionmentioning

confidence: 99%

Group Decision-Making Support for Sustainable Governance of Algal Bloom in Urban Lakes

et al. 2020

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Algal bloom is a typical pollution of urban lakes, which threatens drinking safety and breaks the urban landscape. It is pivotal to select a reasonable governance approach for sustainable management. A decision-making support method was studied in this paper. First, a general framework was designed to organize the rational decision-making processes. Second, quantitative calculation methods were proposed, including expert selection and opinion integration. The methods can determine the vital decision elements objectively and automatically. Third, the method was applied in Yuyuantan Lake in Beijing, China. The monitoring information and decision-making process are presented and the rank of governance alternatives is given. The comparison and discussion show that the group decision-making method is feasible and effective. It can assist the sustainable management of algal bloom.

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“…There are many close interactions between bacterioplankton and phytoplankton dynamics in aquatic systems [1], in which the extracellular products of photosynthetic algae stimulate the bacterial growth [2] and in return the marine bacteria have abilities to promote or inhibit phytoplankton growth [3][4]. This intimate microenvironment between algal cells and bacteriawas is defined as 'Phycosphere' [5].…”

Section: Introductionmentioning

confidence: 99%

Influence of Conditioned Media of Halomonas sp. DH-e on Phycosphere Bacterial Community Dynamics of <i>Prorocentrum donghaiense</i>

Bi¹,

Wang²,

Han³

et al. 2020

Pol. J. Environ. Stud.

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Prorocentrum donghaiense has become one of the major algae that cause phytoplankton blooms. A marine bacterium, Halomonas sp. DH-e with high algicidal activity to P. donghaiense was isolated in previous studies. However, the mechanism underlying the algicidal activity of DH-e was unknown. In the present study, the post-culture medium of DH-e was supplemented into the culture of P. donghaiense. Samples of algae cells and phycosphere bacteria were collected at different times. Illumina Miseq sequencing was used to evaluate bacterial community dynamics in the phycosphere of microalgae. Taxonomic analysis identified 3 phyla, including Proteobacteria, Bacteroidetes and Verrucomicrobia, with Proteobacteria dominating and accounting for more than 95% of all bacterial species. Alteromonadaceae increased gradually, while Rhodobacteraceae decreased during the culture with the post-culture medium. Principal component analysis suggested that bacterial community composition was similar during 0-12 h, but changed significantly at 24 h, 36 h and 48 h. Redundancy analysis revealed a close correlation between phycosphere bacterial community composition and pH, chlorophyll a and algae cell mass. In conclusion, the results suggested that algicidal activity of DH-e was mediated via the secretion of unidentified components in the post-culture medium, which induced variation of phycosphere bacterial community and subsequently contributed to the lysis of algae cells. Fig. 5. Redundancy analysis (RDA) ordination diagram showing the relationship among samples, bacteria and environmental factors. TN, total nitrogen; TP, total phosphorus; N/P, ratio of nitrogen to phosphorus; Chl a, chlorophyll a; DAC, the density of algae cells.

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Microorganisms-based methods for harmful algal blooms control: A review

Cited by 227 publications

References 89 publications

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

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

Group Decision-Making Support for Sustainable Governance of Algal Bloom in Urban Lakes

Influence of Conditioned Media of Halomonas sp. DH-e on Phycosphere Bacterial Community Dynamics of <i>Prorocentrum donghaiense</i>

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