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Related Concept Videos

Microbial Bioremediation of Pesticides01:28

Microbial Bioremediation of Pesticides

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Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...
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Microbial Bioremediation of Hydrocarbons01:26

Microbial Bioremediation of Hydrocarbons

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Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to...
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Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
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Bioremediation00:46

Bioremediation

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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
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Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
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Biodeterioration refers to the unwanted alteration of materials caused by microorganisms—especially fungi—which damage both organic substrates (paper, wood, textiles) and inorganic ones (stone, plaster, glass). Unlike abiotic decay, biodeterioration results from biological activity that produces physical disruption and chemical degradation.Physical deterioration occurs as fungal hyphae penetrate pores, cracks, and surface irregularities. Hyphal turgor pressure, thigmotropic growth...
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Related Experiment Video

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Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
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Microbial degradation of herbicides.

Baljinder Singh1, Kashmir Singh1

  • 1a Department of Biotechnology , Panjab University , Chandigarh , Punjab , India.

Critical Reviews in Microbiology
|August 28, 2014
PubMed
Summary

Microbial biodegradation offers an eco-friendly solution for herbicide contamination. This review synthesizes research on microorganisms that can break down common herbicides, aiding in environmental cleanup.

Area of Science:

  • Environmental Science
  • Microbiology
  • Agricultural Science

Background:

  • Herbicides are crucial for weed control, but their increasing use with herbicide-tolerant crops leads to significant environmental contamination.
  • Developing economical and eco-friendly methods for herbicide remediation is a growing global priority.

Purpose of the Study:

  • To comprehensively review the biodegradation of nine key herbicides: clodinafop propargyl, 2,4-dichlorophenoxyacetic acid, atrazine, metolachlor, diuron, glyphosate, imazapyr, pendimethalin, and paraquat.
  • To consolidate information on herbicide characteristics, toxicity, microbial degradation capabilities, pathways, and influencing factors.
  • To explore the molecular basis of degradation and future prospects for microbiological cleanup strategies.

Main Methods:

  • Literature review and synthesis of existing research on herbicide biodegradation.
Keywords:
Biodegradationherbicidesmicrobestoxicity

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  • Categorization of information based on predefined objectives including microbial identification, degradation pathways, and influencing factors.
  • Analysis of toxicity data and degradation products for selected herbicides.

    • Main Results:

    • Identified various microorganisms capable of degrading target herbicides.
    • Detailed characteristic and mode of action of key herbicides.
    • Outlined biodegradation pathways and molecular mechanisms involved.
    • Listed degradation products and factors affecting the biodegradation process.

    Conclusions:

    • Microbial biodegradation presents a viable and sustainable approach for mitigating herbicide pollution in soil and water.
    • This review provides a foundation for developing efficient microbiological methods for environmental remediation.
    • Further research into the molecular basis and optimization of microbial degradation holds significant promise for future applications.