Reduction in microcystin concentrations in large and shallow lakes: Water and sediment-interface contributions

Chen, Wei; Song, Lirong; Peng, Liang; Wan, Neng; Zhang, Xiaoming; Gan, Nanqin

doi:10.1016/j.watres.2007.08.007

Cited by 155 publications

(103 citation statements)

References 39 publications

(62 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…3 MCs are primarily retained in algal cells but are released into waters as a result of cells lysis. 4 They can be accumulated in aquatic life 5 or transferred to higher trophic levels, 6 which presents a potential threat to public health because they are tumor promoters. 7 Therefore, rapid and sustainable degradation of MCs is imperative during the mitigation of cyano-HABs in natural waters.…”

Section: ■ Introductionmentioning

confidence: 99%

Simultaneous Removal of Harmful Algal Blooms and Microcystins Using Microorganism- and Chitosan-Modified Local Soil

Pan

2015

Environ. Sci. Technol.

View full text Add to dashboard Cite

Cyanobacterial harmful algal blooms (cyano-HAB) and microcystins (MCs) can cause a potential threat to public health. Here, a method for simultaneous removal of cyano-HAB and MCs was developed using chitosan-modified local soil (MLS) flocculation plus microorganism-modified soil capping. The experiment was conducted in simulated columns containing algal water collected from Lake Taihu (China). More than 90% of algal cells and intracellular MCs were flocculated and removed from water using chitosan-MLS and the sunken flocs were treated by different capping materials including Pseudomonas sp. An18 modified local soil. During 40 days of incubation, dissolved MC-LR and MC-RR showed 10-fold increase in the flocculation-only system. The increase of MC-LR and MC-RR in water was reduced by 30 and 70% in soil capping treatments; however, the total content of MCs in the sediment−water column remained similar to that in the control and flocculation only systems. In contrast, both dissolved MCs and total MCs were reduced by 90% in Pseudomonas sp. An18 modified soil capping treatment. The high performance of toxin decomposition was due to the combined effects of flocculation and MC-degrading bacteria that embedded in the capping material, which prevents dilution of bacteria biomass, concentrates algal cells, confines released toxins, and enhances toxin biodegradation.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

Simultaneous Removal of Harmful Algal Blooms and Microcystins Using Microorganism- and Chitosan-Modified Local Soil

Pan

2015

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…To date, numerous studies have been conducted to investigate the fate of MCs in water columns and aquatic organisms [6][7][8]; however, only a few studies have been conducted to investigate the fate of MCs in lake sediments [9]. Nevertheless, sediment, which often serves as one of the most important sources and sinks of environmental pollutants, may also play an important role in the fate of MCs.…”

Section: Introductionmentioning

confidence: 99%

Optimal strategies for determination of free/extractable and total microcystins in lake sediment

Wang

Xiao

et al. 2012

Analytica Chimica Acta

View full text Add to dashboard Cite

“…T11 isolated from Lake Taoranting sediment could degrade both MC-LR and MC-RR. Chen et al [20] suggested that the degradation of MC in the presence of lake water with sediments has a significantly faster biodegradation rate than in lake only. This was attributed to its nutritional versatility of growing on a large amount of organic compounds.…”

Section: Biodegradation Of MC By Strain T11mentioning

confidence: 99%

Isolation of a Arthrobacter sp. T11 that Degrades Cyanobacterial Hepatotoxin Microcystin from the Sediment of a Shallow Hypertrophic Lake

Qu¹,

Zhang²,

Zhang³

et al. 2015

Advances in Computer Science Research

View full text Add to dashboard Cite

Abstract-In present study, we are intrested in establishing a biological removal method by microorganism against the cyanobacterial hepatotoxin microcystion. A native microcystindegrading bacterium was isolated from a shallow hypertrophic lake, and the biodegradation effect was detected by the LC-MS method. The 16S rDNA gene sequence analysis result indicated that the isolated strain T11 was belonged to the genus Arthrobacter sp., with a highest sequence similarity (98%) with Arthrobacter sp. C6 strain. LC-MS result showed that the Arthrobacter sp. T11 was able to effectively degrade, at a highest concentration of MC (MC-LR ~ 15μg·L -1 ; MC-RR ~ 20μg·L -1 ) in batch experiments using sterilized lake water conditions, with complete removal observed within 10 days.

show abstract

Reduction in microcystin concentrations in large and shallow lakes: Water and sediment-interface contributions

Cited by 155 publications

References 39 publications

Simultaneous Removal of Harmful Algal Blooms and Microcystins Using Microorganism- and Chitosan-Modified Local Soil

Simultaneous Removal of Harmful Algal Blooms and Microcystins Using Microorganism- and Chitosan-Modified Local Soil

Optimal strategies for determination of free/extractable and total microcystins in lake sediment

Isolation of a Arthrobacter sp. T11 that Degrades Cyanobacterial Hepatotoxin Microcystin from the Sediment of a Shallow Hypertrophic Lake

Contact Info

Product

Resources

About