Antimicrobial activity against Microcystis aeruginosa and degradation of microcystin-LR by bacteria isolated from Antarctica

Benegas, Gabriela Rocío Sosa; Bernal, Suzan Prado Fernandes; Oliveira, Valéria Maia de; Passarini, Michel Rodrigo Zambrano

doi:10.1007/s11356-021-14458-5

Cited by 13 publications

(4 citation statements)

References 68 publications

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“…Algicidal bacteria are often sought out intentionally by the screening of bacterial communities. These may be sampled from places where algal blooms naturally occur, such as seawater, lake water, or other aqueous environments, but bacteria from origins as unpredictable as fish intestines and Antarctic sea sponges have also displayed algicidal activity ( Abdel Gawad et al, 2020 ; Benegas et al, 2021 ). Soil or estuarine sediments are also a good source of algicidal bacteria ( Luo et al, 2013 ; Zheng et al, 2018 ; Zhang et al, 2021a ), although the ecological functions of secreted compounds by sediment bacteria are more likely related to the high level of dissolved and particulate organic matter in this environment rather than to induce lysis in planktonic algal populations.…”

Section: Characterizing Algicidal Bacteria and Algicidesmentioning

confidence: 99%

Algicidal Bacteria: A Review of Current Knowledge and Applications to Control Harmful Algal Blooms

2022

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Interactions between bacteria and phytoplankton in aqueous ecosystems are both complex and dynamic, with associations that range from mutualism to parasitism. This review focuses on algicidal interactions, in which bacteria are capable of controlling algal growth through physical association or the production of algicidal compounds. While there is some evidence for bacterial control of algal growth in the field, our understanding of these interactions is largely based on laboratory culture experiments. Here, the range of these algicidal interactions is discussed, including specificity of bacterial control, mechanisms for activity, and insights into the chemical and biochemical analysis of these interactions. The development of algicidal bacteria or compounds derived from bacteria for control of harmful algal blooms is reviewed with a focus on environmentally friendly or sustainable methods of application. Potential avenues for future research and further development and application of bacterial algicides for the control of algal blooms are presented.

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Section: Characterizing Algicidal Bacteria and Algicidesmentioning

confidence: 99%

Algicidal Bacteria: A Review of Current Knowledge and Applications to Control Harmful Algal Blooms

2022

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“…[35] and Arthrobacter sp. [14]. Streptomyces is the most common anticyanobacterial Actinomycetes in HCBs control.…”

Section: Anticyanobacteriamentioning

confidence: 99%

“…Compared with the physical and chemical methods, biological approaches such as plant allelopathy, aquatic animals and anticyanobacterial microorganisms are considered to be an economic and environmentally friendly way for cyanobacteria inhibition/biodegradation [2,10,12]. Among these methods, anticyanobacterial microorganisms are used as efficient biological agents M. aeruginosa [13]; furthermore, the microcystins can be biodegraded by certain anticyanobacterial microorganisms at the same time [6,14,15].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in the Research on the Anticyanobacterial Effects and Biodegradation Mechanisms of Microcystis aeruginosa with Microorganisms

et al. 2022

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Harmful algal blooms (HABs) have attracted great attention around the world due to the numerous negative effects such as algal organic matters and cyanobacterial toxins in drinking water treatments. As an economic and environmentally friendly technology, microorganisms have been widely used for pollution control and remediation, especially in the inhibition/biodegradation of the toxic cyanobacterium Microcystis aeruginosa in eutrophic water; moreover, some certain anticyanobacterial microorganisms can degrade microcystins at the same time. Therefore, this review aims to provide information regarding the current status of M. aeruginosa inhibition/biodegradation microorganisms and the acute toxicities of anticyanobacterial substances secreted by microorganisms. Based on the available literature, the anticyanobacterial modes and mechanisms, as well as the in situ application of anticyanobacterial microorganisms are elucidated in this review. This review aims to enhance understanding the anticyanobacterial microorganisms and provides a rational approach towards the future applications.

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“…To date, at least 108 countries, which distribute in all continents except Antarctica, have been detected the distribution of MCs (Benegas et al, 2021;Cha n et al, 2018). MCs are primarily intracellular and released to the dissolved water when the cell lysis and death occurred (Rohrlack and Hyenstrand, 2007;Sivonen and Jones, 1999).…”

Section: Introductionmentioning

confidence: 99%

Temporal dynamics of microcystins in two reservoirs with different trophic status during the early growth stage of cyanobacteria

Xue

Kong

Xie

et al. 2022

Environ Sci Pollut Res

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Harmful cyanobacterial blooms are increasing in frequency and severity, which makes their toxic secondary metabolites of microcystins (MCs) have been widely studied, especially in their distribution and in uence factors in different habitats. However, the distribution of MCs on the early growth stage of harmful cyanobacteria and its in uence factors and risks are still largely unknown. Thus, in the present study, two reservoirs (Lutian Reservoir and Lake Haitang) with different trophic status in China have been studied weekly from March to May in 2018, when the cyanobacteria communities were just in the early growth stage, to investigate the variation of MCs concentration and the relationships between MCs and environmental parameters. During the investigation, Lutian Reservoir and Lake Haitang were found to be mesotrophic and light eutrophic, respectively. In Lutian Reservoir, the concentration of EMCs was obviously higher than that of IMCs with a mean value of 0.323 and 0.264 μg/L, respectively. Meanwhile, the concentration of EMCs also uctuated more sharply than that of IMCs. Congeners of IMC-YR and EMC-LR were respectively dominant in total concentrations of IMCs and EMCs. Unsurprisingly, in Lake Haitang, the concentrations of IMC and EMC were both signi cantly higher than that in Lutian Reservoir with a mean concentration of 0.482 and 0.472 μg/L, respectively. Differently, the concentration of MC-YR was dominant in both IMCs and EMCs, followed by MC-LR. In correlation analysis, the IMCs were signi cantly and positively correlated with the density and biomass of phytoplankton phyla and potential MCs-producing cyanobacteria and the parameters of water temperature (WT), nutrients and organic matters. Similar results were also observed for EMCs. While the different variation of MCs in two reservoirs might be primarily caused by the differences in WT, nutrients (especially phosphorus), organic matters and the composition of MCs-producing cyanobacteria. In addition, the coexistence of the dominant species of Pseudoanabaena sp., which can produce taste-and-odor compound of 2methylisoborneol (2-MIB), might have signi cant impacts on the concentration and toxicity of MCs. Our results suggested that the risks posed by MCs at the early growth stage of cyanobacteria should also deserve our attentions, especially in mesotrophic water bodies.

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Antimicrobial activity against Microcystis aeruginosa and degradation of microcystin-LR by bacteria isolated from Antarctica

Cited by 13 publications

References 68 publications

Algicidal Bacteria: A Review of Current Knowledge and Applications to Control Harmful Algal Blooms

Algicidal Bacteria: A Review of Current Knowledge and Applications to Control Harmful Algal Blooms

Recent Advances in the Research on the Anticyanobacterial Effects and Biodegradation Mechanisms of Microcystis aeruginosa with Microorganisms

Temporal dynamics of microcystins in two reservoirs with different trophic status during the early growth stage of cyanobacteria

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