Comparative transmembrane transports of four typical lipophilic organic chemicals

Ren, Jiao-Rong; Zhao, He-Ping; Song, Chao; Wang, Shilong; Li, L u; Ya-tong, XU; Gao, Hong‐Wen

doi:10.1016/j.biortech.2010.06.121

Cited by 19 publications

(10 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fig. 2b further implies that pyrene could accumulate in the membrane in a relatively short time, and then it was transported into cell through the membrane with the extension of time, as pyrene in the membrane declined to 0.093 mg/L at 168 h. Lipophilic hydrocarbons were preferably enriched in the microbial membrane when interacting with cells, thus increasing membrane fluidity and enhancing cell permeability (Ren et al, 2010). Due to high lipid solubility of pyrene and the electrostatic potential of molecular surface, membrane phospholipids interacted with pyrene by hydrophobic bond (Le Bourvellec and Renard, 2005), which formed stable conjugates.…”

Section: Distribution Of Pyrene In Bacterial Cellsmentioning

confidence: 89%

“…The supernatant after centrifugation at 10,000g was used to determine the pyrene concentration in membrane (Li et al, 2007;Ren et al, 2010).…”

Section: Biodegradation Of Pyrenementioning

confidence: 99%

“…PAHs transport through cells could cause membrane and cytoplasm accumulation (Ren et al, 2010). Transport and biodegradation were metabolically mediated activities , thus it is critical to determine the relation between biodegradation and cellular responses.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Biosorption and biodegradation of pyrene by Brevibacillus brevis and cellular responses to pyrene treatment

Liao

Chen

Peng

et al. 2015

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

Section: Distribution Of Pyrene In Bacterial Cellsmentioning

confidence: 89%

“…The supernatant after centrifugation at 10,000g was used to determine the pyrene concentration in membrane (Li et al, 2007;Ren et al, 2010).…”

Section: Biodegradation Of Pyrenementioning

confidence: 99%

See 1 more Smart Citation

Biosorption and biodegradation of pyrene by Brevibacillus brevis and cellular responses to pyrene treatment

Liao

Chen

Peng

et al. 2015

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

“…Generally, hazardous chemicals do not interfere with the metabolism of microbes unless they enter the cell interior (Verrengia Guerrero et al, 2002;Ren et al, 2010). TCP should first be absorbed onto the cell surface and then enter the cell interior to interfere with anabolism.…”

Section: Role Of Tcp In the Cell Interior In The Reduction Of Activatmentioning

confidence: 99%

Fate and Residual Toxicity of a Chemical Uncoupler in a Sequencing Batch Reactor Under Metabolic Uncoupling Conditions

Qiao

Wang

Qian

2012

Environmental Engineering Science

View full text Add to dashboard Cite

Although uncoupling metabolism is a possible measure to reduce sludge generation during the activated sludge process for treating organic wastewater, the fate of the chemical uncoupler in the activated sludge system and its residual toxicity have not been widely studied. In this work, 2,4,6-trichlorophenol (TCP), a typical metabolic uncoupler, was used as an example to investigate the distribution and persistence of chemical uncouplers in an activated sludge system treating municipal wastewater. In addition, the cytotoxicity of residual TCP in the effluent was also evaluated using Vero cells. Results showed that ranges of residual TCP in the effluent were 0.5-1.0, 0.9-1.4, and 1.3-2.4 mg L -1 when the TCP in the feed was 2, 4, and 6 mg L -1 , respectively. TCP concentrations in the sludge phase significantly exceeded those in the water phase, due to the accumulation effect of sludge on TCP. TCP was biodegraded to some extent during the operating process, and the degradation efficiency increased with the number of operating cycles. About 0.07 mg g -1 sludge (dry weight) in the cell interior is a critical concentration for efficient inhibition of excess sludge generation. Although the acute cytotoxicity of TCP at concentrations less than 2.0 mg L -1 in the effluent was relatively low, concentrations greater than 2.5 mg L -1 had a significant effect on the morphology and proliferation of Vero cells. Accumulative and chronic effects of trace TCP in effluents on the ecosystem should be further studied. Dosages of more than 4 mg L -1 TCP (corresponding to 2.5 mg L -1 residual concentration) for sludge reduction in sequencing batch reactors treating municipal wastewater is not recommended due to acute toxicity.

show abstract

“…Kang et al (2010) investigated the subcellular distribution of pyrene and PHE in the perennial, ryegrass (Lolium perenne L.), and found that the compounds first adsorb to the cell wall of the roots, then enter the organelles within the cell via the cell membrane. Ren et al (2010) compared the transmembrane transport of four typical lipophilic organic compounds, and proposed that PAHs in the extracellular medium enter the cytoplasm in a steady flow through the partition-inverse releasebinding mechanism. Keyte et al (2009) indicated that PHE was primarily concentrated in the cytoplasm and vacuoles in spinach (Spinacia oleracea), while in the cell membrane and adjacent cells in mosses (Hypnum cupressiforme).…”

Section: Study On the Localization Of Phe In P Vittatamentioning

confidence: 99%

Transportation and localization of phenanthrene and its interaction with different species of arsenic in Pteris vittata L.

Liao

Yan

et al. 2016

Chemosphere

View full text Add to dashboard Cite

h i g h l i g h t sDifferent species of arsenic absorption by Pteris vittata were inhibited by phenanthrene. Phenanthrene absorption by P. vittata was reduced by arsenic in the following order: DMA > As(V)>As(III). Phenanthrene mainly located in the cell membrane or membrane structure. a r t i c l e i n f o t r a c tThe interaction between arsenic (As) and phenanthrene (PHE) in Pteris vittata L. was investigated in this study. The migration and occurrence of PHE in P. vittata were determined by two-photon laser scanning confocal microscopy. Data indicated that PHE supplementation lowers the As concentration in P. vittata, decreasing As levels by 16.8e39.9% in the pinnae, 30.0e49.0% in the rachis, and 45e51.5% in the roots, respectively. Different arsenic species inhibited P. vittata PHE absorption. The most significant effect was observed using dimethylarsenic acid (DMA), which decreased PHE accumulation by 20.73%. With the exception of elevated As(V) concentrations in As(III)-treated plants, PHE treatment significantly reduced inorganic As concentrations in P. vittata. However, PHE elevated root DMA concentrations by 9%. According to in situ visualization, PHE is primarily found in the upper and lower epidermis and stomatal cells, particularly the stomata guard cells.

show abstract

Comparative transmembrane transports of four typical lipophilic organic chemicals

Cited by 19 publications

References 30 publications

Biosorption and biodegradation of pyrene by Brevibacillus brevis and cellular responses to pyrene treatment

Biosorption and biodegradation of pyrene by Brevibacillus brevis and cellular responses to pyrene treatment

Fate and Residual Toxicity of a Chemical Uncoupler in a Sequencing Batch Reactor Under Metabolic Uncoupling Conditions

Transportation and localization of phenanthrene and its interaction with different species of arsenic in Pteris vittata L.

Contact Info

Product

Resources

About