Growth inhibition of phytoplankton communities collected from Hoan Kiem lake by different solvent extracts Eupatorium fortune Turcz

Thủy, Dương Thị; Cuong, Ho Tu; Quynh, Le Thi Phuong; Đạt, Nguyễn Tiến; Nga, Pham Thanh; Nguyet, Vu Thi; Kim, Dang Dinh

doi:10.15625/0866-7160/v37n2.6600

V J Bio

2015

DOI: 10.15625/0866-7160/v37n2.6600

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Growth inhibition of phytoplankton communities collected from Hoan Kiem lake by different solvent extracts Eupatorium fortune Turcz

Dương Thị Thủy¹,

Ho Tu Cuong

Le Thi Phuong Quynh³

et al.

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Cited by 3 publications

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“…Therefore, some biological candidates such as natural enemies and plant solvent extracts were also chosen to control cyanobacteria in the lakes. Specifically, Thuy and colleagues elucidated that the aqueous extracts from Eupatorium fortune Turcz plant could inhibit the growth of phytoplankton and Microcystis as 34.5 % of their community in the sample after 14 days of testing [12]. However, it is necessary to develop other applicable technologies to treat cyanobacteria not only at the laboratory scale but also in the lakes and reservoirs with high efficiency, low cost and safety for the environment.…”

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confidence: 99%

Cu2ONPs/DIATOMITE INHIBITS GROWTH AND REMOVAL OF MICROCYSTIS AERUGINOSA

Thi¹,

Thi²,

Dinh³

et al. 2021

Vietnam J. Sci. Technol.

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Cu2O nanoparticles (Cu2ONPs) with particle size of ~27.4 nm deposited on diatomite (Cu2ONPs/diatomite), a new low-cost material has been used to investigate growth inhibit, and bloom preventation of cyanobacteria in eutrophic waters. Diatomite collected from natural mines was also used in the experiments. Microcystis aeruginosa strain originated from Bac Lieu shrimp pond was isolated and cultured in Z8 medium. Experiments were conducted by exposing M. aeruginosa to Cu2ONPs/diatomite and diatomite at concentrations of 0.1, 0.2, and 0.5 g/L for 72 hours and 120 hours. The results showed that the concentration of 0.5 g/L in 120 hours, Cu2ONPs/diatomite was more effective in inhibiting and removing of M. aeruginosa cells than diatomite. Therefore, Cu2ONPs/diatomite could be used as a promising material for removing cyanobacterial bloom in water for aquaculture.

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confidence: 99%

Cu2ONPs/DIATOMITE INHIBITS GROWTH AND REMOVAL OF MICROCYSTIS AERUGINOSA

Thi¹,

Thi²,

Dinh³

et al. 2021

Vietnam J. Sci. Technol.

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Anticyanobacterial phenolic constituents from the aerial parts of Eupatorium fortunei Turcz

Pham

Dang

et al. 2018

Natural Product Research

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Four thymol derivatives and two phenolic compounds were isolated from the aerial parts of Eupatorium fortunei. The new structures were elucidated to be 7,8,9-trihydroxythymol (1), and 8,10-didehydro-7,9-dihydroxythymol (2) by means of MS and NMR analysis. The known compounds were identified as 8,9,10-trihydroxythymol (3), 10-acetoxy-8,9-dihydroxythymol (4), o-coumaric acid (5) and 4-(2-hydroxyethyl)benzaldehyde (6). Compound 3 showed strongest inhibitory effect on the growth of Microcystis aeruginosa in comparison with CuSO.

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Acute Toxicity of the Ethanol Extract and Ethyl Acetate Fraction of Eupatorium Fortunei to Daphnia Magna

Nga¹

2018

JST

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Previous studies have shown that the crude ethanol extract and its ethylacetate fraction of the plant Eupatorium fortunei Turcz strongly inhibited the growth of a harmful freshwater cyanobacterium Microcystis aeruginosa. However, the perspective of using these plant extracts as alternative algicides takes into account their potential risks to other species in aquatic ecosystems, including Daphnia magna. The current study presents the acute toxicity of the extracts to D. magna. The median lethal concentrations, immobilizing 50 % of D. magna, (LC50) after 24 and 48 h of the ethanol extract were 247 and 183 mg L-1, respectively. In the exposure to ethyl acetate fraction, the values of 24h-LC50 and 48h-LC50 were 47 and 13 mg L-1, respectively. The values of dissolved oxygen (DO) and pH in the control and treatments had little change during the 48-hour experiment period, fluctuating from 6.44 ÷ 7.90 and 6.07 ÷ 7.78 mg L-1, respectively, and they were still good conditions for D.magna growth. Finally, these results prove clearly that the ethyl acetate fraction is more toxic to the freshwater cladoceran than the ethanol extract. To our knowledge, it is the first report of the acute toxic estimation of E. fortunei extracts to zooplankton species, D. magna. Chronic toxicity of these extracts to D. magna needs to be studied in next step.

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Growth inhibition of phytoplankton communities collected from Hoan Kiem lake by different solvent extracts Eupatorium fortune Turcz

Cited by 3 publications

References 6 publications

Cu2ONPs/DIATOMITE INHIBITS GROWTH AND REMOVAL OF MICROCYSTIS AERUGINOSA

Cu2ONPs/DIATOMITE INHIBITS GROWTH AND REMOVAL OF MICROCYSTIS AERUGINOSA

Anticyanobacterial phenolic constituents from the aerial parts of Eupatorium fortunei Turcz

Acute Toxicity of the Ethanol Extract and Ethyl Acetate Fraction of Eupatorium Fortunei to Daphnia Magna

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