Glyphosate Pollution Treatment and Microbial Degradation Alternatives, a Review

Castrejón-Godínez, María Luisa; Tovar-Sánchez, Efraı́n; Valencia-Cuevas, Leticia; Rosas-Ramírez, Marcos Eduardo; Rodríguez, A.; Mussali-Galante, Patricia

doi:10.3390/microorganisms9112322

Cited by 32 publications

(17 citation statements)

References 165 publications

(218 reference statements)

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“…1,2 Since its introduction in 1974, glyphosate usage has enormously increased, particularly with the widespread planting of genetically modified crops. 3 Due to its low cost and high efficiency, its output and usage have increased year after year, accounting for around 25% of the global herbicide market. 4 In China, the total annual production capacity of glyphosate is over 560,000 tons.…”

Section: Introductionmentioning

confidence: 99%

“…17 Microbial degradation is the most promising strategy for removing xenobiotics. 3 Several microbes that are capable of degrading glyphosate have been isolated; among them, bacteria play the most crucial role, such as Achromobacter spp., Agrobacterium spp., Arthrobacter spp., Ochrobactrum spp., and Pseudomonas spp. 18,19 After the application of glyphosate, the abundance of Gram-negative bacteria usually increases, indicating that Gram-negative bacteria are probably glyphosate degraders.…”

Section: Introductionmentioning

confidence: 99%

“…Glyphosate ( N -(phosphonomethyl)glycine), the active ingredient of Roundup, is the most effective and widely used herbicide around the world. , Since its introduction in 1974, glyphosate usage has enormously increased, particularly with the widespread planting of genetically modified crops . Due to its low cost and high efficiency, its output and usage have increased year after year, accounting for around 25% of the global herbicide market .…”

Section: Introductionmentioning

confidence: 99%

“…In the environment, glyphosate undergoes various processes of photolysis and dissipation of microbial metabolism, with a half-life ranging from a few days up to several months . Microbial degradation is the most promising strategy for removing xenobiotics . Several microbes that are capable of degrading glyphosate have been isolated; among them, bacteria play the most crucial role, such as Achromobacter spp., Agrobacterium spp., Arthrobacter spp., Ochrobactrum spp., and Pseudomonas spp. , After the application of glyphosate, the abundance of Gram-negative bacteria usually increases, indicating that Gram-negative bacteria are probably glyphosate degraders. , The microbial degradation process of glyphosate involves two stages: first, Gram-negative bacteria primarily degrade glyphosate.…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

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 first pathway involves direct cleavage of the chemically inert C-P bond by a multicomponent enzyme complex, which is known as the C-P lyase complex. In this case, the formation of sarcosine and inorganic phosphorus (Pi) occurs (C-P lyase pathway) [ 49 ]. In the second pathway, an herbicide molecule is initially attacked by an enzyme known as glyphosate oxidoreductase (glyphosate oxidoreductase pathway).…”

Section: Resultsmentioning

confidence: 99%

Characterization of a New Pseudomonas Putida Strain Ch2, a Degrader of Toxic Anthropogenic Compounds Epsilon-Caprolactam and Glyphosate

et al. 2023

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In this work, a new Ch2 strain was isolated from soils polluted by agrochemical production wastes. This strain has a unique ability to utilize toxic synthetic compounds such as epsilon-caprolactam (CAP) as a sole carbon and energy source and the herbicide glyphosate (GP) as a sole source of phosphorus. Analysis of the nucleotide sequence of the 16S rRNA gene of Ch2 revealed that the strain belongs to the species Pseudomonas putida. This strain grew in the mineral medium containing CAP in a concentration range of 0.5 to 5.0 g/L and utilized 6-aminohexanoic acid and adipic acid, which are the intermediate products of CAP catabolism. The ability of strain Ch2 to degrade CAP is determined by a conjugative megaplasmid that is 550 kb in size. When strain Ch2 is cultured in a mineral medium containing GP (500 mg/L), more intensive utilization of the herbicide occurs in the phase of active growth. In the phase of declining growth, there is an accumulation of aminomethylphosphonic acid, which indicates that the C-N bond is the first site cleaved during GP degradation (glyphosate oxidoreductase pathway). Culture growth in the presence of GP during the early step of its degradation is accompanied by unique substrate-dependent changes in the cytoplasm, including the formation of vesicles of cytoplasmic membrane consisting of specific electron-dense content. There is a debate about whether these membrane formations are analogous to metabolosomes, where the primary degradation of the herbicide can take place. The studied strain is notable for its ability to produce polyhydroxyalkanoates (PHAs) when grown in mineral medium containing GP. At the beginning of the stationary growth phase, it was shown that, the amount and size of PHA inclusions in the cells drastically increased; they filled almost the entire volume of cell cytoplasm. The obtained results show that the strain P. putida Ch2 can be successfully used for the PHAs’ production. Moreover, the ability of P. putida Ch2 to degrade CAP and GP determines the prospects of its application for the biological cleanup of CAP production wastes and in situ bioremediation of soil polluted with GP.

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Role of herbicides in the decline of butterfly population and diversity

Mallick¹,

Rana²,

Ghosh³

2023

J Exp Zool Pt A

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The herbicides not only produce a lethal effect on herbs but also indirectly harm those species which use herbs as host plants during their life cycle. The adverse effect of herbicide is comparatively more than any insecticide found in the agricultural industry. Herbicides act as enzyme inhibitors that block the synthesis of essential biomolecules in herbs. Action mechanisms in which herbicides act on the plant body as well as the classification of the herbicides according to their mode of action have been recorded. Lethal effects of herbicides cause qualitative and quantitative losses of herb‐weeds and associated beneficial herbs from crop fields that lead to the decline in diversity of butterfly population. Lack of food sources, alteration of life cycle and morphological anomalies are found as a result of herbicidal interference on enzymatic reactions in butterflies. Beneficial organisms and pollinators are included within the affected ones. We selected the butterfly as it is recognized as a good indicator species. The effects of two graminicide fluazifop‐p‐butyl and sethoxydim, and a surfactant (like ‘Preference’ that help to increase penetration) were evaluated on Icaricia icarioides blackmorei and Pieris rapae in the laboratory. Glyphosate and glufosinate ammonium (GLA) kill milkweed plants (Asclepias sp.) by blocking the 5‐enolpyruvylshikimate‐3 phosphate synthase (EPSPS) enzyme. 2,4,5‐trichlorophenoxyacetic acid (2,4,5‐T), an herbicide used in forest and nature reserves, is toxic to springtails (Onychiurus quadriocellatus) upon direct contact resulting a disastrous effect on Monarch. Fifth instar caterpillars of skipper butterfly Calpodes ethlius die when they are fed GLA‐treated host plants. Atrazine and S‐metolachlor are the two other herbicides which are thought to have a role on milkweed plant whose leaves are the food of the larvae. Triclopyr, sethoxydim, and imazapyr are the three herbicides that reduced the adult emergence of Behr's metalmark butterfly. The objective of the study is to provide precise information regarding the relationship between herbicides and butterflies as well as the recommendation of feasible strategies for butterfly conservation with respect to weed management.

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Glyphosate Pollution Treatment and Microbial Degradation Alternatives, a Review

Cited by 32 publications

References 165 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

Characterization of a New Pseudomonas Putida Strain Ch2, a Degrader of Toxic Anthropogenic Compounds Epsilon-Caprolactam and Glyphosate

Role of herbicides in the decline of butterfly population and diversity

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