The role of genus Bacillus in biodegradation of microcystins: Implications for the removal of cyanotoxins from tropical freshwaters DOI
Madhuni Madhushika Wijesooriya, Kanaji Masakorala, Shirani M. K. Widana Gamage

et al.

AWWA Water Science, Journal Year: 2024, Volume and Issue: 6(6)

Published: Nov. 1, 2024

Abstract The proliferation of harmful cyanobacterial blooms poses a threat to the ecosystem and human health. Microcystins (MCs) are most frequently detected cyanotoxin released by cyanobacteria, including Microcystis sp. Our study aimed isolate potential MC‐degrading bacteria in Sri Lankan freshwater determine their possible MC‐degradation pathways. Twenty‐two morphologically distinct bacterial strains from 13 bodies were isolated following enrichment assay. MC‐biodegradation assays further confirmed 21 strains, with Bacillus being predominant genus. strain altitudinis BL1, Beira Lake, showed highest efficiency cell lysis (80%) (87%). PCR assay results absence mlr ABCD genes all indicating presence uncharacterized alternative mechanisms that require exploration. dual functions support developing efficient bacteria‐mediated strategies remediate microcystins eradicate ‐blooms tropical freshwaters.

Language: Английский

Elimination of Microcystis aeruginosa through Leuconostoc mesenteroides DH and its underlying mechanism DOI
Yi Li,

Mengyuan Qin,

Shuo Han

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168290 - 168290

Published: Nov. 7, 2023

Language: Английский

Citations

2
Physiological and toxicological response of Microcystis aeruginosa BCCUSP232 exposed to Salvinia auriculata extracts DOI
Regildo Márcio Gonçalves da Silva,

Anderson Lourenção,

Gustavo Franciscatti Mecina

et al.

Journal of Toxicology and Environmental Health, Journal Year: 2024, Volume and Issue: 87(17), P. 701 - 717

Published: June 12, 2024

Microcystis aeruginosa is one of the most predominant freshwater bloom-forming cyanobacterium found globally which capable producing toxic secondary metabolites including microcystins that might intoxicate animals and humans when contaminated water or food ingested. Salvinia auriculata Aubl plants possess bioactive compounds controlling growth reproduction M. aeruginosa. The present study aimed to determine presence in S. extracts alterations occurred exposed these plant extracts. In addition, this investigation examine influence on antioxidant enzymes detected results obtained demonstrated aqueous ethanolic presented potential for control cyanobacteria populations, exhibiting algicidal action as well interfering activities parameters associated with oxidative stress. Phytochemical analyses polyphenols flavonoids content both application did not produce cytogenotoxicity and/or mutagenicity utilizing Allium cepa test. Therefore, further studies are needed order identify characterize responsible effects provide information regarding possible treatment drinking water.

Language: Английский

Citations

0
Enhanced inhibitory efficiency against toxic bloom forming Raphidiopsis raciborskii by Streptomyces sp. HY through triple algicidal modes: Direct and indirect attacks combined with bioflocculation DOI
Yan Xie, He Zhang,

Baiyu Cui

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 477, P. 135152 - 135152

Published: July 20, 2024

Language: Английский

Citations

0
Impact of Algicidal Fungus Aspergillus Welwitschiae Gf6 on Harmful Bloom-Forming Cyanobacterium Microcystis Aeruginosa: Growth and Physiological Responses DOI

И. Л. Кузикова,

T. B. Zaytseva,

Ekaterina Chernova

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
The role of genus Bacillus in biodegradation of microcystins: Implications for the removal of cyanotoxins from tropical freshwaters DOI
Madhuni Madhushika Wijesooriya, Kanaji Masakorala, Shirani M. K. Widana Gamage

et al.

AWWA Water Science, Journal Year: 2024, Volume and Issue: 6(6)

Published: Nov. 1, 2024

Abstract The proliferation of harmful cyanobacterial blooms poses a threat to the ecosystem and human health. Microcystins (MCs) are most frequently detected cyanotoxin released by cyanobacteria, including Microcystis sp. Our study aimed isolate potential MC‐degrading bacteria in Sri Lankan freshwater determine their possible MC‐degradation pathways. Twenty‐two morphologically distinct bacterial strains from 13 bodies were isolated following enrichment assay. MC‐biodegradation assays further confirmed 21 strains, with Bacillus being predominant genus. strain altitudinis BL1, Beira Lake, showed highest efficiency cell lysis (80%) (87%). PCR assay results absence mlr ABCD genes all indicating presence uncharacterized alternative mechanisms that require exploration. dual functions support developing efficient bacteria‐mediated strategies remediate microcystins eradicate ‐blooms tropical freshwaters.

Language: Английский

Citations

0