Characterization of a novel glyphosate-degrading bacterial species, Chryseobacterium sp. Y16C, and evaluation of its effects on microbial communities in glyphosate-contaminated soil

Zhang, Wenping; Li, Jiayi; Zhang, Yuming; Wu, Xiaozhen; Zhou, Zhe; Huang, Yaohua; Zhao, Yingjie; Mishra, Sandhya; Bhatt, Pankaj; Chen, Shaohua

doi:10.1016/j.jhazmat.2022.128689

Cited by 97 publications

(38 citation statements)

References 80 publications

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“…Degradation occurs in sterile soils without any microbes, indicating that glyphosate degradation in soil involves both biotic and abiotic processes; however, only the abiotic processes are responsible for chemical contamination through complete degradation (mineralization) and removal from the environment . As Figure shows, the glyphosate degradation efficiency in nonsterile soil was higher than that in sterile soil, indicating that indigenous soil microorganisms enhance glyphosate degradation; this result is consistent with those of Liu et al and Zhang et al In the soil used in this study, which was nonglyphosate-treated 5 years earlier, the microbes also exhibited the potential to degrade glyphosate. However, “natural degradation” is always limited; hence, exogenous degraders need to be introduced to achieve complete degradation.…”

Section: Resultssupporting

confidence: 90%

“…Inoculum amount, temperature, and pH are important factors determining the efficiency of the biodegradation of pesticides. , To determine optimal degradation conditions for strain Y4B, degradation abilities under different conditions were explored, as shown in Figure . Accordingly, the optimal degradation conditions are determined to be 3% inoculation, 30 °C, and pH 9.0.…”

Section: Resultsmentioning

confidence: 99%

“…However, the complexity of natural environments makes stable remediation a challenge. Survival and retention are the primary problems facing microbial degradation with pure culture. , Thus, in this study, sodium alginate was used as the embedding carrier, then chitosan was also added to enhance biodegradability and cell affinity, and CaCl 2 acted as a cross-linking solution, which finally formed immobilized gel beads. Sodium alginate is an eco-friendly and cost-effective material and increases the mechanical strength of compounds due to its high porosity and high molecular weight.…”

Section: Resultsmentioning

confidence: 99%

“…Sodium alginate, chitosan, and other chemicals and solvents were purchased from Guangzhou Dongju Experimental Instrument Co., Ltd. (Guangzhou, China) unless otherwise stated. The mineral salt medium (MSM) containing various concentrations of glyphosate and AMPA was prepared as previously described …”

Section: Methodsmentioning

confidence: 99%

“…Electron microscope (BH-2 Olympus, Japan) and scanning electron microscope (XL-30 ESEM, Philips Optoelectronics Co., Ltd., Holland) were used to obtain the colony and cellular morphology micrographs. 16S rDNA sequence gene was amplified by PCR using universal primers 27F and 1492R (27 forward primer: 5′-TGACGAGTGGCGGACGGGTG-3′ and 1492 reverse primer: 5′-CCATGGTGTGACGGGCGGTGTG-3′) . The PCR-amplified product was purified and sequenced by GENEWIZ Inc., Guangzhou, China.…”

Section: Methodsmentioning

confidence: 99%

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Effects of Free or Immobilized Bacterium Stenotrophomonas acidaminiphila Y4B on Glyphosate Degradation Performance and Indigenous Microbial Community Structure

Chen

Zhang

et al. 2022

J. Agric. Food Chem.

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The overuse of glyphosate has resulted in serious environmental contamination. Thus, effective techniques to remove glyphosate from the environment are required. Herein, we isolated a novel strain Stenotrophomonas acidaminiphila Y4B, which completely degraded glyphosate and its major metabolite aminomethylphosphonic acid (AMPA). Y4B degraded glyphosate over a broad concentration range (50−800 mg L −1 ), with a degradation efficiency of over 98% within 72 h (50 mg L −1 ). Y4B degraded glyphosate via the AMPA pathway by cleaving the C−N bond, followed by degradation of AMPA and subsequent metabolism. Y4B demonstrated strong competitiveness and substantially accelerated the degradation of glyphosate in different soils, degrading 71.93 and 89.81% of glyphosate (400 mg kg −1 ) within 5 days in sterile and nonsterile soils, respectively. The immobilized cells of Y4B were more efficient than their free cells and they displayed excellent biodegradation efficiency in a sediment−water system. Taken together, Y4B is an ideal degrader for the bioremediation of glyphosate-contaminated sites.

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Effects of Free or Immobilized Bacterium Stenotrophomonas acidaminiphila Y4B on Glyphosate Degradation Performance and Indigenous Microbial Community Structure

Chen

Zhang

et al. 2022

J. Agric. Food Chem.

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Biosynthesized Metallic Nanoarchitecture for Photocatalytic Degradation of Emerging Organochlorine and Organophosphate Pollutants: A Review

Emmanuel,

Idris,

Olawoyin

et al. 2024

ChemistrySelect

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The use of efficacious and cost‐effective pesticides (OP and OC) has undoubtedly proven to be a blessing and a baron because these pesticides are safeguarding the world from food insecurity. Unfortunately, their presence in aquatic bodies brings about an upsurge in water pollution. Amazingly, the photocatalytic degradation approach utilizing biogenic nanoparticles (BNPs) is a trendy state‐of‐the‐art approach and has been established to be a sustainable methodology for the complete mineralization of contaminants into harmless molecules. Thus, this work holistically explores the use of BNPs for photocatalytic degradation of OP and OC. Based on the review, it was found that the least amount of time needed for degradation was less than 5 minutes, while the maximum degradation efficiency was >80 %. The dominant radicals participating in the degradation are ⋅OH and O2⋅ and this radical dominance was enhanced by the oxygenated functional groups present in the biogenic entities employed for the biosynthesis of BNPs. The photocatalytic degradation data fits the pseudo‐first‐order and Langmuir isotherm models (R2 > 0.9), which indicates that the main adsorption mechanisms involved during electron‐hole pair formation and photocatalytic degradation are physisorption and monolayer at the surface of the BNPs. BNPs can sustain a >80 % degradation efficiency for approximately 5 cycles and are reusable for up to 8 cycles. It was also revealed that plants constitute 80 % of the engaged biogenic entities for BNP synthesis. Ultimately, this work offers novel avenues and future research hotspots that might accelerate the use of BNPs for sustainable agricultural and wastewater management practices.

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Algae-Based Bioremediation of Emerging Pollutants

Iftehimul,

Manik,

Bashar

et al. 2023

Management and Mitigation of Emerging Pollutants

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Characterization of a novel glyphosate-degrading bacterial species, Chryseobacterium sp. Y16C, and evaluation of its effects on microbial communities in glyphosate-contaminated soil

Cited by 97 publications

References 80 publications

Effects of Free or Immobilized Bacterium Stenotrophomonas acidaminiphila Y4B on Glyphosate Degradation Performance and Indigenous Microbial Community Structure

Effects of Free or Immobilized Bacterium Stenotrophomonas acidaminiphila Y4B on Glyphosate Degradation Performance and Indigenous Microbial Community Structure

Biosynthesized Metallic Nanoarchitecture for Photocatalytic Degradation of Emerging Organochlorine and Organophosphate Pollutants: A Review

Algae-Based Bioremediation of Emerging Pollutants

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