Characteristics of an atrazine degrading bacterium and the construction of a microbial agent for effective atrazine degradation

Zhu, Jiangwei; Fu, Li; Meng, Zili; Jin, Caihua

doi:10.1111/wej.12491

Cited by 33 publications

(13 citation statements)

References 42 publications

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“…Various materials have been developed for drug delivery, including metal-organic frameworks (MOFs), magnetic materials, inorganic materials, and liposomes [6][7][8][9]. The stimulus used to trigger the drug release at the target sites includes temperature, light, pH, redox reagent, etc [10][11][12][13]. Among these stimuli, a pHresponsive system has been of great interest.…”

Section: Introductionmentioning

confidence: 99%

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Retracted: Synthesis and surface modification of mesoporous metal-organic framework (UiO-66) for efficient pH-responsive drug delivery and lung cancer treatment

et al. 2021

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This paper applied mesoporous metal-organic frameworks (MOFs) of UiO-66 particles for pH-responsive doxorubicin (DOX) delivery and cancer treatment. Mesoporous structured UiO-66 MOFs were synthesized, and carboxymethylcellulose (CMC) was loaded for sensitive pH response and also as a linker to encapsulate the chemotherapeutic drug of DOX. The composite of UiO-66/CMC@DOX was synthesized, and the loading capacity was as high as 45 μg DOX per mg of the carrier. The structure and crystalization of the UiO-66 MOFs were determined by the Transmitting Electron Microscope (TEM) and x-ray diffraction methods, while the loading of CMC and DOX was inspected by Fourier Transform InfraRed (FT-IR) and UV–vis spectroscopy. The DOX release from UiO-66/CMC@DOX was tested under different pH at 37 °C. The DOX accumulative release could reach 78% under the pH of 5. A lower pH was more favorable for DOX release due to the CMC shrinking and higher DOX solubility in an acidic environment. The cytotoxicity study indicated that, under the DOX concentration of 4 μg ml−1, the A549 cell (Lung Carcinoma Cell Line) viability of UiO-66/CMC was 28%, which was lower than that from free DOX solution (47%). UiO-66 MOFs were demonstrated to be an efficient drug delivery carrier for chemotherapeutic drug and release.

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Section: Introductionmentioning

confidence: 99%

“…Among various pH-sensitive materials, carboxymethylcellulose (CMC) is an anionic water-soluble natural polymer [16][17][18][19]. It has been widely used in the drug delivery system for pH-responsive drug release, due to the characteristics of high pH sensitivity, high biocompatibility, nontoxicity, and high hydrophilicity [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Retracted: Synthesis and surface modification of mesoporous metal-organic framework (UiO-66) for efficient pH-responsive drug delivery and lung cancer treatment

et al. 2021

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“…In previous reports, after 7 days of LY-1 incubation, atrazine (100 mg·kg − 1 ) in soil was removed by 79.9% [ 49 ]; Paenarthrobacter sp. AT − 5 could remove 95.9% of 50 mg·kg − 1 atrazine was from the soils with 7 days [ 50 ]; after 6 days of treatment using strain YQJ-6, the degradation rates of atrazine (50 mg·kg − 1 ) in fresh soil and sterilized soil were 99.8 and 95.2%, respectively [ 51 ]. Strain ZF1 could degrade higher concentration of atrazine in soil in practically the same time, exhibiting it had greater atrazine-degrading ability than most atrazine-degrading microorganisms.…”

Section: Discussionmentioning

confidence: 99%

Impact of Paenarthrobacter ureafaciens ZF1 on the soil enzyme activity and microbial community during the bioremediation of atrazine-contaminated soils

Zhang

Xiao

et al. 2022

BMC Microbiol

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Bioremediation of atrazine-contaminated soil is considered a safe and effective approach in removing contaminates from the soil. However, the effects of adding foreign organisms to assist bioremediation on soil environmental quality and ecosystem are unclear. Here, the ecological remediation potential of strain Paenarthrobacter ureafaciens ZF1 on atrazine-contaminated soil was investigated through miniature experiments using variations in soil enzymes and bacterial communities as indicators. The results showed that strain ZF1 accelerated atrazine degradation, which could completely degrade atrazine at concentrations of 100 mg·L− 1 atrazine within 2 h in liquid medium and could remove up to 99.3% of atrazine (100 mg·kg− 1 in soil) within 6 days. During soil bioremediation, atrazine promoted the activities of urease and cellulase, and inhibited the activities of sucrase and catalase, while the strain ZF1 significantly promoted the activities of these four enzymes. High-throughput sequencing of 16S rRNA genes showed that ZF1 affected the relative abundance and bacterial community structure, and promoted bacterial diversity and evenness. Furthermore, redundancy analysis revealed a certain correlation among the strain ZF1, atrazine residue, soil enzyme activity, and soil bacterial community. The strain ZF1 in this work demonstrated remarkable potential for ecological restoration, and can be an effective and environmentally friendly alternative in remediating atrazine-contaminated soil.

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“…Temperature, pH, depth from the soil surface, and oxygen content of the surrounding matrix are the main abiotic factors that can influence atrazine degradation [43]. The mineralization rate of atrazine is slower in anaerobic or denitrifying conditions than in aerobic environments [44].…”

Section: Abiotic Factorsmentioning

confidence: 99%

Microbes as a potential bioremediation tool for atrazine-contaminated soil: A review

Mili¹,

Kalita²,

Roy³

2022

J App Biol biotech

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Atrazine is a controversial and widely used herbicide to control weeds in both agriculture fields and residential sites. Instead of adopting manual weed control, atrazine is being used by people who resulted in a negative impact on the environment. Therefore, removing atrazine in soil has received considerable attention. Microorganisms have terrific potential for degradation of hazardous pollutants which always motivates continuous bioremediation-directed research. The objective of this review is to identify, analyze, and compile all the studies on atrazine-degrading microorganisms. Particular emphasis is made on the atrazine degradation pathways, a diverse group of bacteria, fungi, and yeast along with the genetics and enzymology aspects of degradation. The present review may act as a source of information for developing a cheaper and microbiological method for rescuing the atrazine-contaminated soil and water in the future.

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Characteristics of an atrazine degrading bacterium and the construction of a microbial agent for effective atrazine degradation

Cited by 33 publications

References 42 publications

Retracted: Synthesis and surface modification of mesoporous metal-organic framework (UiO-66) for efficient pH-responsive drug delivery and lung cancer treatment

Retracted: Synthesis and surface modification of mesoporous metal-organic framework (UiO-66) for efficient pH-responsive drug delivery and lung cancer treatment

Impact of Paenarthrobacter ureafaciens ZF1 on the soil enzyme activity and microbial community during the bioremediation of atrazine-contaminated soils

Microbes as a potential bioremediation tool for atrazine-contaminated soil: A review

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