Streptomyces neyagawaensis as a control for the hazardous biomass of Microcystis aeruginosa (Cyanobacteria) in eutrophic freshwaters

Choi, Hyun Ki; Kim, Baik‐Ho; Kim, Jeong-Dong; Han, Moonsik

doi:10.1016/j.biocontrol.2005.03.007

Cited by 116 publications

(74 citation statements)

References 33 publications

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“…SM02 also showed little inhibitory activity against the toxic cyanobacterium Anabaena flos-aquae and the small centric diatoms Stephanodiscus hantzschii and Cyclotella meneghiniana. It is generally accepted that these intra-and interspecific differences susceptibility of alga to algicidal bacteria are due to physiological differences among algal strains (Manage et al 2000;Walker and Higginbotham 2000;Yasuno et al 2000), bacterial density, and bacterial growth rates (Mayali and Azam 2004;Choi et al 2005). Our results suggest that SM02 not be effective against all species of M. aeruginosa.…”

Section: Discussionmentioning

confidence: 60%

“…Identification of algicidal bacteria-To identify the algicidal bacterial isolates, bacterial chromosomal DNA was isolated according to the method described by Choi et al (2005), and molecular identification was performed as in Wellinghausen et al (2005). Briefly, 16S rDNA was amplified using primers 27F, 5′-GAGTTTGATCATGGCTCAG-3′ and 1492R, 5′-GGT-TACCTTGTTACGACTT-3′, in a 50 μL reaction volume containing 20 ng of template DNA, 1× PCR buffer (Sigma), 5 mM MgCl 2 , 10 mM dNTPs, 10 pM of each primer, and 2.5 units of Taq DNA polymerase.…”

Section: Materials and Proceduresmentioning

confidence: 99%

“…Direct application of chemicals to control algal blooms can harm aquatic ecosystems by killing beneficial organisms such as plankton and fish (McGuire et al 1984;Reynolds 1984;Reyssac and Pletikosic 1990). Therefore, many researchers have taken pan-ecological and environmental approaches to lake conservation by investigating the potential for biological control of cyanobacterial blooms, mainly using Microcystis aeruginosa as a model system (Redhead and Wright 1978;Brabrand et al 1983;Manage et al 2000;Choi et al 2005;Kim et al 2007). So far, most reports have been from laboratory studies, and the biological control of algal blooms in situ has not been adequately assessed.…”

Section: Introductionmentioning

confidence: 99%

“…Although numerous laboratory studies have demonstrated anti-algal effects of some bacteria on marine and freshwater algae species (Daft et al 1975;Sigee et al 1999;Lee et al 2000;Mayali and Azam 2004;Kim et al 2007), the use of M. aeruginosa as an agent of biological control in situ, that is, under natural conditions or in bloom water, is complicated. Choi et al (2005) demonstrated that the Microcystis-killing bacterium Streptomyces did not continue to grow as the number of algae declined and that bacterial growth required the addition of nutrients (e.g., casitone), because the target algae were not a sufficient source of food. The need for added nutrients when applying bacteria for algal bloom control in eutrophic waters is an important constraint.…”

Section: Introductionmentioning

confidence: 99%

“…Investigation into the algicidal mechanisms of bacteria has shown that some bacteria actually increase the concentration of dissolved MCs via lysis of Microcystis cells (Choi et al 2005;Kim et al 2007). The mechanism of MC-mediated destruction of Microcystis and the relationship between MC and algicidal bacteria remain unclear.…”

Section: Introductionmentioning

confidence: 99%

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In situ bacterial mitigation of the toxic cyanobacterium Microcystis aeruginosa: implications for biological bloom control

Kim

Sang

Hwang

et al. 2008

Limnology & Ocean Methods

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The algicidal bacterium Xanthobacter autotrophicus HYS0201-SM02 (SM02) was isolated from the surface water of a eutrophic lake (Lake Daechung, Korea). In vivo and in situ experiments showed that SM02 had algicidal activity against both a cultured strain and natural colonial morphs of the toxic cyanobacterium, Microcystis aeruginosa. Both the SM02 bacteria and its culture filtrate showed anti-algal activity against M. aeruginosa, indicating that an algicidal substance was released from SM02. The threshold concentration of SM02 for maximal algicidal activity against a natural bloom of M. aeruginosa was 10 7 CFU/mL. In situ co-culture of SM02 and M. aeruginosa showed that SM02 did not benefit from the massive decay of M. aeruginosa. In fact, repeated inoculations with a low concentration of SM02 were required for optimal algicidal activity, suggesting that water quality worsened during co-culture (i.e., nutrients and microcystin-LR concentration increased). These results suggest a role for the algicidal bacterium X. autotrophicus SM02 in biorestoration but probably not in treating outdoor Microcystis blooms. When developing a biological agent to control M. aeruginosa blooms in the field, it will be important to screen for specific agents with low threshold concentrations and high algicidal activity.

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Section: Discussionmentioning

confidence: 60%

Section: Materials and Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

In situ bacterial mitigation of the toxic cyanobacterium Microcystis aeruginosa: implications for biological bloom control

Kim

Sang

Hwang

et al. 2008

Limnology & Ocean Methods

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Anticyanobacterial process and action mechanism of Streptomyces sp. HJC‐D1 on Microcystis aeruginosa

Kong

Wang

Chen

et al. 2020

Env Prog and Sustain Energy

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Eutrophication of environmental waters and occurrence of harmful cyanobacterial blooms have drawn much attention all over the world. For controlling cyanobacteria overgrowth, biological control methods such as anticyanobacterial process by microorganisms have been recently explored. In this study, a Streptomyces strain named HJC‐D1 is isolated from an eutrophic pond in China, which exhibited anticyanobacterial activity against a representative bloom‐forming cyanobacterium Microcystis aeruginosa. Based on its morphology and 16S rRNA sequence, the isolated strain is identified as Streptomyces sp. Results show that the M. aeruginosa is biodegraded by the isolated strain HJC‐D1, and the Chl a removal efficiency is 53.5 ± 4.3%–62.6 ± 3.3% at the initial Chl a concentration of 0.2713–0.6375 mg L−1. The anticyanobacterial mechanism of Streptomyces sp. on M. aeruginosa is that the growth of cyanobacterial cell is destroyed by the active substances secreted by strain HJC‐D1, and TEM results demonstrate the degradation processes are divided into three steps: cell breakage, organelle release, and cell death. The isolated microorganism may be a potential environment‐friendly strain and provides a possible approach for Microcystis bloom control in lakes and reservoirs.

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Research on Cyanobacterial Blooms and Cyanotoxin Production in Galician Inland Waters

Gradín,

Bravo,

Lanero

et al. 2023

The Environment in Galicia: A Book of Images

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Streptomyces neyagawaensis as a control for the hazardous biomass of Microcystis aeruginosa (Cyanobacteria) in eutrophic freshwaters

Cited by 116 publications

References 33 publications

In situ bacterial mitigation of the toxic cyanobacterium Microcystis aeruginosa: implications for biological bloom control

In situ bacterial mitigation of the toxic cyanobacterium Microcystis aeruginosa: implications for biological bloom control

Anticyanobacterial process and action mechanism of Streptomyces sp. HJC‐D1 on Microcystis aeruginosa

Research on Cyanobacterial Blooms and Cyanotoxin Production in Galician Inland Waters

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