A rapid phenol toxicity test based on photosynthesis and movement of the freshwater flagellate, Euglena agilis Carter

Kottuparambil, Sreejith; Kim, Youn-Jung; Choi, Hoon; Kim, Mi-Sung; Park, Areum; Park, Ji‐Hae; Shin, Woongghi; Han, Taejun

doi:10.1016/j.aquatox.2014.05.014

Cited by 37 publications

(16 citation statements)

References 44 publications

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“…The reduction in biomass can be attributed to the presence of phenol in water since its toxic nature can drastically affect the plant health parameters such evapotranspiration, photosynthesis rate, etc. (Kottuparambil et al, 2014, Ucisik and Trapp, 2006). It has been reported that, in willow plants, 50% of the evapotranspiration was dropped after its exposure to water containing phenol 500 mg l −1 whereas complete plant death occurred at 1000 mg l −1 of phenol exposure (Ucisik and Trapp, 2006).…”

Section: Resultsmentioning

confidence: 99%

“…Some of the pollutants are, however, toxic enough to downgrade the overall cleaning process by reducing the plant growth and inhibiting bacterial degradation (Alkio et al, 2005). Phenol is among these pollutants, and can affect both of the processes due to its bactericidal properties and plant metabolic malfunctioning potential (Adeboye et al, 2014, Kottuparambil et al, 2014, Phenrat et al, 2017, Ucisik and Trapp, 2006). To overcome such a situation, artificial augmentation of rhizobacteria and/or endophytic bacteria, having antagonistic activities for the specific pollution type, have been proposed in a variety of phytoremediation experiments (Afzal et al, 2014, Khan et al, 2013, Weyens et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Phragmites australis — a helophytic grass — can establish successful partnership with phenol-degrading bacteria in a floating treatment wetland

Saleem

Arslan

Rehman

et al. 2019

Saudi Journal of Biological Sciences

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Helophytic plants contribute significantly in phytoremediation of a variety of pollutants due to their physiological or biochemical mechanisms. Phenol, which is reported to have negative/deleterious effects on plant metabolism at concentrations higher than 500 mg/L, remains hard to be removed from the environmental compartments using conventional phytoremediation procedures. The present study aims to investigate the feasibility of using P. australis (a helophytic grass) in combination with three bacterial strains namely Acinetobacter lwofii ACRH76, Bacillus cereus LORH97, and Pseudomonas sp. LCRH90, in a floating treatment wetland (FTW) for the removal of phenol from contaminated water. The strains were screened based on their phenol degrading and plant growth promoting activities. We found that inoculated bacteria were able to colonize in the roots and shoots of P. australis, suggesting their potential role in the successful removal of phenol from the contaminated water. Pseudomonas sp. LCRH90 dominated the bacterial community structure followed by A. lowfii ACRH76 and B. cereus LORH97. The removal rate was significantly high when compared with the individual partners, i.e., plants and bacteria separately. The plant biomass, which was drastically reduced in the presence of phenol, recovered significantly with the inoculation of bacterial consortia. Likewise, highest reduction in chemical oxygen demand (COD), biochemical oxygen demand (BOD), and total organic carbon (TOC) is achieved when both plants and bacteria were employed. The study, therefore, suggests that P. australis in combination with efficient bacteria can be a suitable choice to FTWs for phenol-degradation in water.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phragmites australis — a helophytic grass — can establish successful partnership with phenol-degrading bacteria in a floating treatment wetland

Saleem

Arslan

Rehman

et al. 2019

Saudi Journal of Biological Sciences

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“…The ability of rhizospheric strains to survive and effectively utilize toxic pollutants is a prerequisite for their use in phytoremediation [10]. Many organic pollutants negatively affect the phytoremediation process, inhibiting plant growth due to metabolic disorders and a decrease in bacterial degradation as a result of bactericidal exposure [11][12][13].…”

Section: Resultsmentioning

confidence: 99%

Rhizospheric Bacteria, Destructors of Toxic Aromatic Compounds

Anokhina¹,

Есикова²,

Polivtseva³

et al. 2019

Proceedings of the 1st International Symposium Innovations in Life Sciences (ISILS 2019)

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Bacteria capable of degradation of a number of toxic organic compounds (aromatic hydrocarbons, n-alkanes, phenol and its chlorinated derivatives) were isolated from the rhizosphere of plants growing on "clean" and oil-contaminated soil. The most active strain, Lysinibacillus sp. Fg1 was able to utilize more than 15 individual substrates. Six bacterial strains of the genus Pseudomonas decomposed polycyclic aromatic hydrocarbons, suppressed the growth of phytopathogenic fungi and bacteria, and synthesized phytohormones auxins.

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“…One of the earliest examples was the use of fi sh which were deployed in potentially polluted water; when they died or showed abnormal swimming behavior this was interpreted as an indication of the presence of lethal or sublethal concentrations of toxic substances in the water [21]. Later on, many other organisms have been utilized in bioassays including bacteria, microorganisms, lower and higher plants as well as invertebrates and vertebrates [22][23][24][25]. Different endpoints can be used as indicators for toxicity including mortality, motility and behavior, growth and reproduction as well as physiological parameters such as photosynthesis, protein biosynthsis and genetic alteration of aquatic organisms [26].…”

Section: After Reaction With Oxygen and Heavy Metals Such As Ironmentioning

confidence: 99%

Arsenic Pollution Measured with an online Monitoring System using Daphnia

Erzinger¹

2017

Open J Environ Biol

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Arsenic is a common pollutant in many water reservoirs around the world and is the cause of human mortality in many countries. The microcrustacean Daphnia can be cultured easily and is sensitive to many toxic substances including As. This bioindicator is the basis of the Daphniatox instrument which uses computerized image analysis of swimming organisms in real time. Fourteen endpoints are evaluated including motility, swimming velocity, orientation with respect to light or gravity as well as several cell size and form parameters. Using automatic track analysis of a large number of organisms warrants high statistical signifi cance. In a vertical swimming fl ask Daphnia shows pronounced gravitaxis moving upward and downward while in a horizontal fl ask the organisms swim in random directions. Exposure for up to 72 h to 0-10 mg/L NaAsO 2 (corresponding to 0-77.5 μM As) according to the standard NBR 12713 protocol showed an EC 50 value of 5.97 mg/L for motility after an exposure time of 7 h and 4.82 mg/L after 26 h. Comparably, the EC 50 value for velocity was 5.32 mg/L after an exposure time of 7 h and after 26 h it was 3.05 mg/L. As expected, the length of the organisms did not change over the exposure time because of their rigid exoskeleton, but the circularity which corresponds to the area divided by the perimeter squared decreased which is interpreted to be due to a release of water. The results indicate that this method provides a reliable, fast and inexpensive test for arsenic toxicity in drinking water from wells and reservoirs.

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A rapid phenol toxicity test based on photosynthesis and movement of the freshwater flagellate, Euglena agilis Carter

Cited by 37 publications

References 44 publications

Phragmites australis — a helophytic grass — can establish successful partnership with phenol-degrading bacteria in a floating treatment wetland

Phragmites australis — a helophytic grass — can establish successful partnership with phenol-degrading bacteria in a floating treatment wetland

Rhizospheric Bacteria, Destructors of Toxic Aromatic Compounds

Arsenic Pollution Measured with an online Monitoring System using Daphnia

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