Arsenic interception by cell wall of bacteria observed with surface-enhanced Raman scattering

Tian, Hua; Zhuang, Guoqiang; Ma, Anzhou; Jing, Chuanyong

doi:10.1016/j.mimet.2012.03.018

Cited by 26 publications

(16 citation statements)

References 34 publications

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“…This peak at 1231 cm À1 was attributed to an increase in eCH 2 deformation in the cell wall compared to in the protoplast, which then occupied a lower wavenumber of 1213 cm À1 subsequent to Eu(III) biosorption. The P]O signal observed at 1160 cm À1 was not prominent after Eu(III) biosorption as well as the PeOeC stretching frequency originally observed at~1073 cm À1 and 998 cm À1 that slightly shifted to 1085 cm À1 and 1003 cm À1 respectively (Tian et al, 2012).…”

Section: Ftir Characterization Of Biosobentsmentioning

confidence: 79%

Facile synthesis of chitosan derivatives and Arthrobacter sp. biomass for the removal of europium(III) ions from aqueous solution through biosorption

Cadogan

Lee

Popuri

2015

International Biodeterioration & Biodegradation

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Section: Ftir Characterization Of Biosobentsmentioning

confidence: 79%

Facile synthesis of chitosan derivatives and Arthrobacter sp. biomass for the removal of europium(III) ions from aqueous solution through biosorption

Cadogan

Lee

Popuri

2015

International Biodeterioration & Biodegradation

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“…Intensity at 1244 cm −1 was assigned to Amide-III of protein according to previous study 32,33 . Peak at 1244 cm −1 went up gradually after 4 h treatment of trans-cinnamaldehyde as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Membrane damage mechanism contributes to inhibition of trans-cinnamaldehyde on Penicillium italicum using Surface-Enhanced Raman Spectroscopy (SERS)

Huang

Kong

et al. 2019

Sci Rep

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The antifungal mechanism of essential oils against fungi remains in the shallow study. In this paper, antifungal mechanism of trans-cinnamaldehyde against Penicillium italicum was explored. Trans-cinnamaldehyde exhibited strong mycelial growth inhibition against Penicillium italicum, with minimum inhibitory concentration of 0.313 μg/mL. Conventional analytical tests showed that trans-cinnamaldehyde changed the cell membrane permeability, which led to the leakage of some materials. Meanwhile, the membrane integrity and cell wall integrity also changed. Surface-enhanced Raman spectroscopy, an ultrasensitive and fingerprint method, was served as a bran-new method to study the antifungal mechanism. Characteristic peaks of supernatant obviously changed at 734, 1244, 1330, 1338 and 1466 cm−1. The Raman intensity represented a strong correlation with results from conventional methods, which made SERS an alternative to study antifungal process. All evidences implied that trans-cinnamaldehyde exerts its antifungal capacity against Penicillium italicum via membrane damage mechanism.

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“…A‐1 and GOLO 1, isolated from soils in the same site from Shanxi Province, exhibited As(III) resistance of 20 mmol l −1 and As(V) resistance of 300–400 mmol l −1 (Tian et al . ). The MICs of bacteria SXB and IMH are comparable with the MICs in the reported works.…”

Section: Discussionmentioning

confidence: 97%

Bacillussp. SXB andPantoeasp. IMH, aerobic As(V)-reducing bacteria isolated from arsenic-contaminated soil

Zhuang

et al. 2012

J Appl Microbiol

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Aims: To isolate highly effective aerobic As(V)-reducing bacteria from arsenic (As)-contaminated soils in Northwest China and to identify their dynamic As (V) reduction processes and genomic detoxification mechanisms. Methods and Results: Enrichment cultures were performed aerobically in tryptone, yeast extract and glucose medium in the presence of As(V). Strain SXB isolated from soil in Shanxi Province, belonging to Bacillus genus, reduced As(V) more effectively under aerobic conditions than under anaerobic conditions. Strain IMH, a strictly aerobic isolate obtained from soil in Inner Mongolia, identified as Pantoea, is reported for the first time to reduce As(V). Both isolates could reduce over 90% As(V) in 36 h under aerobic conditions. Putative gene fragments for the ArsB efflux pump gene were obtained from both strains. The putative arsenate reductase gene was only amplified from strain SXB. A putative arsH gene was amplified from strain IMH. Conclusions: Strains SXB and IMH isolated from the As-contaminated soils reduce As(V) effectively under aerobic conditions via a detoxification mechanism regulated by ars operons. Significance and Impact of the Study: Pantoea genus is reported to reduce As (V) for the first time. This study provides a full understanding of the highly effective As(V)-reducing bacteria SXB and IMH, which could influence the As biogeochemical cycle in soils.

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Arsenic interception by cell wall of bacteria observed with surface-enhanced Raman scattering

Cited by 26 publications

References 34 publications

Facile synthesis of chitosan derivatives and Arthrobacter sp. biomass for the removal of europium(III) ions from aqueous solution through biosorption

Facile synthesis of chitosan derivatives and Arthrobacter sp. biomass for the removal of europium(III) ions from aqueous solution through biosorption

Membrane damage mechanism contributes to inhibition of trans-cinnamaldehyde on Penicillium italicum using Surface-Enhanced Raman Spectroscopy (SERS)

Bacillussp. SXB andPantoeasp. IMH, aerobic As(V)-reducing bacteria isolated from arsenic-contaminated soil

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