An algicidal Streptomyces amritsarensis strain against Microcystis aeruginosa strongly inhibits microcystin synthesis simultaneously

Yu, Yan; Zeng, Yudie; Li, Jing; Yang, Caiyun; Zhang, Xiaohui; Luo, Feng; Dai, Xianzhu

doi:10.1016/j.scitotenv.2018.08.433

Cited by 63 publications

(36 citation statements)

References 65 publications

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“…Zhang et al (2014) isolated strain RPS with high algaecidal activity, and the algae lysis activity of the RPS supernatant was sensitive to temperatures of 50 °C and above, with higher temperatures leading to a lower algae lysis rate. Yu et al (2019) isolated strain HG-16, and at temperatures 75 °C for 2 h there was no significant effect on the algae lysis rate, but activity decreased to 52.3% after treatment at 121 °C for 2 h. By comparison, strain G1 displayed high algae lysis activity at various temperatures, indicating that temperature had less effect on strain G1. Kong (2019) reported that the algae lysis rate of strain HJC-D1 increased by 63.2 + 2.41% with an increase in dosing ratio from 1% to 10%, and the dosing ratio was positively correlated with algae lysis rate.…”

Section: Study On the Effect Of Algicidal Bacteria In Different Growth Periods On Algal Removalmentioning

confidence: 91%

Isolation and algicidal properties study of the strain G1 from reservoir sediments

et al. 2021

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Microcystis aeruginosa is a globally important cyanobacterial species that poses a threat to human health and development. The use of bacteria to control algal blooms has become an important research topic in recent years. In the present work, the algicidal strain G1 was isolated from sediments of a reservoir in Xi'an, China, identified by 16S ribosomal DNA (rDNA), and its algicidal effects were investigated. The rDNA sequence of G1 (GenBank accession number MW205793) is 99.86% similar to that of Chitinimonas sp., and the strain indirectly solubilised algae. Algae removal by G1 was optimal during the decay phase (algae solubilisation rate = 65.85%). Temperature (5–120 °C) did not significantly affect algae removal, pH 5–9 was tolerated, and pH 7 achieved the highest algae lysis rate (63.56%). Ultrasonic treatment of G1 destroyed the algae-solubilising effect. An injection ratio of 15% achieved the highest algae lysis rate (67.64%) under 12 h:12 h light:dark conditions, and full darkness achieved the highest algae lysis rate (68.21%). Thus, G1 can effectively inhibit the reproduction of M. aeruginosa, making it a promising biological agent for controlling algal growth.

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Section: Study On the Effect Of Algicidal Bacteria In Different Growth Periods On Algal Removalmentioning

confidence: 91%

Isolation and algicidal properties study of the strain G1 from reservoir sediments

et al. 2021

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“…In addition, Yu et al identified that a Streptomyces sp. strain named HG-16 was able to inhibit harmful algae with high algicidal activity [62]. However, eDNA can monitor and detect more species than traditional clone isolation techniques.…”

Section: Edna Methods For Eutrophication and Hab Controlmentioning

confidence: 99%

“…It is also important to identify microbes that possess growth-inhibiting activity against harmful algae. It is widely believed that there are a great number of microorganisms with high algicidal activity in freshwater and marine environments that could be used to control HABs [14,62]. Furthermore, Brevibacillus laterosporus which was isolated from soil samples was reported to have algicidal capabilities [95].…”

Section: Perspectives On Ednamentioning

confidence: 99%

A Review and Perspective of eDNA Application to Eutrophication and HAB Control in Freshwater and Marine Ecosystems

Liu

Zhang

et al. 2020

Microorganisms

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Changing ecological communities in response to anthropogenic activities and climate change has become a worldwide problem. The eutrophication of waterbodies in freshwater and seawater caused by the effects of human activities and nutrient inputs could result in harmful algae blooms (HABs), decreases water quality, reductions in biodiversity and threats to human health. Rapid and accurate monitoring and assessment of aquatic ecosystems are imperative. Environmental DNA (eDNA) analysis using high-throughput sequencing has been demonstrated to be an effective and sensitive assay for detecting and monitoring single or multiple species in different samples. In this study, we review the potential applications of eDNA approaches in controlling and mitigating eutrophication and HABs in freshwater and marine ecosystems. We use recent studies to highlight how eDNA methods have been shown to be a useful tool for providing comprehensive data in studies of eutrophic freshwater and marine environments. We also provide perspectives on using eDNA techniques to reveal molecular mechanisms in biological processes and mitigate eutrophication and HABs in aquatic ecosystems. Finally, we discuss the feasible applications of eDNA for monitoring biodiversity, surveying species communities and providing instructions for the conservation and management of the environment by integration with traditional methods and other advanced techniques.

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“…Numerous studies have uncovered interspecies interactions between cyanobacteria and bacteria (Ostensvik et al ., ; Gross, ; Hulot and Huisman, ; Babica et al ., ; Leao et al ., ; Yuan et al ., ; Parveen et al ., ; Yang et al ., ; Penn et al ., ; Bittencourt‐Oliveira et al ., ; Allen et al ., ; Briand et al ., ; Van Wichelen et al ., ; Wang et al ., ; Dias et al ., ; Otten et al ., ; Wu et al ., ; Ndlela et al ., ; Sun et al ., ; Woodhouse et al ., ; Xu et al ., ; Yu et al ., and references therein), but the nature of the allelochemicals and the mechanisms involved in the interactions are in most cases poorly understood. We aimed at gaining a better understanding of the interspecies interaction between Microcystis sp.…”

Section: Introductionmentioning

confidence: 99%

“…These communications have been described as 'languages spoken in the water body' (Kaplan et al, 2015). Naturally, the possibility of harnessing secondary metabolites to control toxic cyanobacterial and other algal blooms is appealing (Briand et al, 2016;Yu et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Increased algicidal activity of Aeromonas veronii in response to Microcystis aeruginosa: interspecies crosstalk and secondary metabolites synergism

Weiss

Kovalerchick

Lieman-Hurwitz

et al. 2019

Environmental Microbiology

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Summary Toxic Microcystis spp. blooms constitute a serious threat to water quality worldwide. Aeromonas veronii was isolated from Microcystis sp. colonies collected in Lake Kinneret. Spent Aeromonas media inhibits the growth of Microcystis aeruginosa MGK isolated from Lake Kinneret. The inhibition was much stronger when Aeromonas growth medium contained spent media from MGK suggesting that Aeromonas recognized its presence and produced secondary metabolites that inhibit Microcystis growth. Fractionations of the crude extract and analyses of the active fractions identified several secondary metabolites including lumichrome in Aeromonas media. Application of lumichrome at concentrations as low as 4 nM severely inhibited Microcystis growth. Inactivation of aviH in the lumichrome biosynthetic pathway altered the lumichrome level in Aeromonas and the extent of MGK growth inhibition. Conversely, the initial lag in Aeromonas growth was significantly longer when provided with Microcystis spent media but Aeromonas was able to resume normal growth. The longer was pre‐exposure to Microcystis spent media the shorter was the lag phase in Aeromonas growth indicating the presence of, and acclimation to, secondary MGK metabolite(s) the nature of which was not revealed. Our study may help to control toxic Microcystis blooms taking advantage of chemical languages used in the interspecies communication.

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An algicidal Streptomyces amritsarensis strain against Microcystis aeruginosa strongly inhibits microcystin synthesis simultaneously

Cited by 63 publications

References 65 publications

Isolation and algicidal properties study of the strain G1 from reservoir sediments

Isolation and algicidal properties study of the strain G1 from reservoir sediments

A Review and Perspective of eDNA Application to Eutrophication and HAB Control in Freshwater and Marine Ecosystems

Increased algicidal activity of Aeromonas veronii in response to Microcystis aeruginosa: interspecies crosstalk and secondary metabolites synergism

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